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| DC Offset and checking in [message #96045] |
Sun, 17 February 2008 09:31  |
![mike audet[3] is currently offline](/theme/PARIS_Forum_Template/images/offline.png "mike audet[3] is currently offline")
mike audet[3]
Messages: 88
Registered: June 2008
|
Member |
|
|
Hi All,
I've been working on a mono-band version of the multiband compressor so that
we could use less dsp when there is just one offending band. This will be
great for compressing just the lows or as a deesser.
I've got the mono version working, and I should have the stereo version finished
soon. The mono version allows 4 instances, compared to two instances for
the full multi band.
I've been investigating the DC offset issues in the crossover. It seems
that whenever any PARIS eq is set to a narrow band and at a low frequency,
it generates some DC offset. I've tried putting various DC offset filters
before and after the EQ, but they don't seem to help.
If anyone out there is skilled in DSP math and has some ideas for how to
filter this better, I would love to hear from you. As of right now, I'm
out of ideas on how to fix this. Not that it is a huge big deal. I'm getting
.1% DC offset measurements by just tweaking the settings to minimize the
effects.
Anyway, I just thought I'd check in and let everyone know I'm not dead.
All the best,
Mike
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| Re: DC Offset and checking in [message #96046 is a reply to message #96045] |
Sun, 17 February 2008 10:19  |
Tom Bruhl
Messages: 1368
Registered: June 2007
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Senior Member |
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This is a multi-part message in MIME format.
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Hi Mike,
I'm glad to hear you're still kicking away at it
AND your not dead. I love the idea of a single
band of compression to save dsp. Often times
that's all the doctor ordered on single tracks.
Will it have a switchable style of eq ie: fully=20
parametric/notch or shelving/bandpass?
I'm in for what ever you come up with and will
pass your DC offset question on to a very
smart friend.
Thanks for your effort as always!
Tom
"Mike Audet" <mike@..> wrote in message news:47b86149$1@linux...
Hi All,
I've been working on a mono-band version of the multiband compressor =
so that
we could use less dsp when there is just one offending band. This =
will be
great for compressing just the lows or as a deesser.
I've got the mono version working, and I should have the stereo =
version finished
soon. The mono version allows 4 instances, compared to two instances =
for
the full multi band.
I've been investigating the DC offset issues in the crossover. It =
seems
that whenever any PARIS eq is set to a narrow band and at a low =
frequency,
it generates some DC offset. I've tried putting various DC offset =
filters
before and after the EQ, but they don't seem to help.
If anyone out there is skilled in DSP math and has some ideas for how =
to
filter this better, I would love to hear from you. As of right now, =
I'm
out of ideas on how to fix this. Not that it is a huge big deal. I'm =
getting
1% DC offset measurements by just tweaking the settings to minimize =
the
effects. =20
Anyway, I just thought I'd check in and let everyone know I'm not =
dead.
All the best,
Mike
I choose Polesoft Lockspam to fight spam, and you?
http://www.polesoft.com/refer.html
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi Mike,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I'm glad to hear you're still kicking =
away at=20
it</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>AND your not dead. I love =
the idea of a=20
single</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>band of compression to save dsp. =
Often=20
times</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>that's all the doctor ordered on single =
tracks.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Will it have a switchable style of eq =
ie: fully=20
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>parametric/notch </FONT><FONT =
face=3DArial size=3D2>or=20
shelving/bandpass?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I'm in for what ever you come up with =
and=20
will</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>pass your DC offset question on to a=20
very</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>smart friend.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks for your effort as =
always!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Tom</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV>"Mike Audet" <mike@..> wrote in message <A=20
=
href=3D"news:47b86149$1@linux">news:47b86149$1@linux</A>...</DIV><BR>Hi=20
All,<BR><BR>I've been working on a mono-band version of the multiband=20
compressor so that<BR>we could use less dsp when there is just one =
offending=20
band. This will be<BR>great for compressing just the lows or as =
a=20
deesser.<BR><BR>I've got the mono version working, and I should have =
the=20
stereo version finished<BR>soon. The mono version allows 4 instances, =
compared=20
to two instances for<BR>the full multi band.<BR><BR>I've been =
investigating=20
the DC offset issues in the crossover. It seems<BR>that whenever =
any=20
PARIS eq is set to a narrow band and at a low frequency,<BR>it =
generates some=20
DC offset. I've tried putting various DC offset =
filters<BR>before and=20
after the EQ, but they don't seem to help.<BR><BR>If anyone out there =
is=20
skilled in DSP math and has some ideas for how to<BR>filter this =
better, I=20
would love to hear from you. As of right now, I'm<BR>out of =
ideas on how=20
to fix this. Not that it is a huge big deal. I'm =
getting<BR>1% DC=20
offset measurements by just tweaking the settings to minimize=20
the<BR>effects. <BR><BR>Anyway, I just thought I'd check in and =
let=20
everyone know I'm not dead.<BR><BR>All the =
best,<BR><BR>Mike</BLOCKQUOTE>
<DIV><FONT size=3D2><BR><BR>I choose Polesoft Lockspam to fight spam, =
and=20
you?<BR><A=20
href=3D"http://www.polesoft.com/refer.html">http://www.polesoft.com/refer=
..html</A> </FONT></DIV></BODY ></HTML>
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| Re: DC Offset and checking in [message #96047 is a reply to message #96046] |
Sun, 17 February 2008 10:34 |
tonehouse
Messages: 184
Registered: July 2006
|
Senior Member |
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This is a multi-part message in MIME format.
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I also hear weird Paris EQ artifacts in the Bass,boost or cut...been =
that way since the XP conversion from Win98....I just avoid using it. I =
don't think offset is the problem.
"Tom Bruhl" <arpegio@comcast.net> wrote in message =
news:47b87c80$1@linux...
Hi Mike,
I'm glad to hear you're still kicking away at it
AND your not dead. I love the idea of a single
band of compression to save dsp. Often times
that's all the doctor ordered on single tracks.
Will it have a switchable style of eq ie: fully=20
parametric/notch or shelving/bandpass?
I'm in for what ever you come up with and will
pass your DC offset question on to a very
smart friend.
Thanks for your effort as always!
Tom
"Mike Audet" <mike@..> wrote in message news:47b86149$1@linux...
Hi All,
I've been working on a mono-band version of the multiband compressor =
so that
we could use less dsp when there is just one offending band. This =
will be
great for compressing just the lows or as a deesser.
I've got the mono version working, and I should have the stereo =
version finished
soon. The mono version allows 4 instances, compared to two instances =
for
the full multi band.
I've been investigating the DC offset issues in the crossover. It =
seems
that whenever any PARIS eq is set to a narrow band and at a low =
frequency,
it generates some DC offset. I've tried putting various DC offset =
filters
before and after the EQ, but they don't seem to help.
If anyone out there is skilled in DSP math and has some ideas for =
how to
filter this better, I would love to hear from you. As of right now, =
I'm
out of ideas on how to fix this. Not that it is a huge big deal. =
I'm getting
1% DC offset measurements by just tweaking the settings to minimize =
the
effects. =20
Anyway, I just thought I'd check in and let everyone know I'm not =
dead.
All the best,
Mike
I choose Polesoft Lockspam to fight spam, and you?
http://www.polesoft.com/refer.html
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charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I also hear weird Paris EQ artifacts in =
the=20
Bass,boost or cut...been that way since the XP conversion from =
Win98....I just=20
avoid using it. I don't think offset is the problem.</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV>"Tom Bruhl" <<A=20
href=3D"mailto:arpegio@comcast.net">arpegio@comcast.net</A>> wrote =
in message=20
<A href=3D"news:47b87c80$1@linux">news:47b87c80$1@linux</A>...</DIV>
<DIV><FONT face=3DArial size=3D2>Hi Mike,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I'm glad to hear you're still kicking =
away at=20
it</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>AND your not dead. I love =
the idea of=20
a single</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>band of compression to save =
dsp. Often=20
times</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>that's all the doctor ordered on =
single=20
tracks.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Will it have a switchable style of eq =
ie: fully=20
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>parametric/notch </FONT><FONT =
face=3DArial=20
size=3D2>or shelving/bandpass?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I'm in for what ever you come up with =
and=20
will</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>pass your DC offset question on to a=20
very</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>smart friend.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks for your effort as =
always!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Tom</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV>"Mike Audet" <mike@..> wrote in message <A=20
=
href=3D"news:47b86149$1@linux">news:47b86149$1@linux</A>...</DIV><BR>Hi=20
All,<BR><BR>I've been working on a mono-band version of the =
multiband=20
compressor so that<BR>we could use less dsp when there is just one =
offending=20
band. This will be<BR>great for compressing just the lows or =
as a=20
deesser.<BR><BR>I've got the mono version working, and I should have =
the=20
stereo version finished<BR>soon. The mono version allows 4 =
instances,=20
compared to two instances for<BR>the full multi band.<BR><BR>I've =
been=20
investigating the DC offset issues in the crossover. It =
seems<BR>that=20
whenever any PARIS eq is set to a narrow band and at a low =
frequency,<BR>it=20
generates some DC offset. I've tried putting various DC offset =
filters<BR>before and after the EQ, but they don't seem to =
help.<BR><BR>If=20
anyone out there is skilled in DSP math and has some ideas for how=20
to<BR>filter this better, I would love to hear from you. As of =
right=20
now, I'm<BR>out of ideas on how to fix this. Not that it is a =
huge big=20
deal. I'm getting<BR>1% DC offset measurements by just =
tweaking the=20
settings to minimize the<BR>effects. <BR><BR>Anyway, I just =
thought=20
I'd check in and let everyone know I'm not dead.<BR><BR>All the=20
best,<BR><BR>Mike</BLOCKQUOTE>
<DIV><FONT size=3D2><BR><BR>I choose Polesoft Lockspam to fight spam, =
and=20
you?<BR><A=20
=
href=3D"http://www.polesoft.com/refer.html">http://www.polesoft.com/refer=
..html</A> </FONT></DIV></BLOCKQUOTE ></BODY></HTML>
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| Re: DC Offset and checking in [message #96048 is a reply to message #96045] |
Sun, 17 February 2008 12:20 |
Aaron Allen
Messages: 1988
Registered: May 2008
|
Senior Member |
|
|
This may seem completely simplistic, but would building a EDS DSP DC offset
plug (separate or as part of the monoband) that's user adjustable alleviate
the immediate problem?
AA
"Mike Audet" <mike@..> wrote in message news:47b86149$1@linux...
>
> Hi All,
>
> I've been working on a mono-band version of the multiband compressor so
> that
> we could use less dsp when there is just one offending band. This will be
> great for compressing just the lows or as a deesser.
>
> I've got the mono version working, and I should have the stereo version
> finished
> soon. The mono version allows 4 instances, compared to two instances for
> the full multi band.
>
> I've been investigating the DC offset issues in the crossover. It seems
> that whenever any PARIS eq is set to a narrow band and at a low frequency,
> it generates some DC offset. I've tried putting various DC offset filters
> before and after the EQ, but they don't seem to help.
>
> If anyone out there is skilled in DSP math and has some ideas for how to
> filter this better, I would love to hear from you. As of right now, I'm
> out of ideas on how to fix this. Not that it is a huge big deal. I'm
> getting
> 1% DC offset measurements by just tweaking the settings to minimize the
> effects.
>
> Anyway, I just thought I'd check in and let everyone know I'm not dead.
>
> All the best,
>
> Mike
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| Re: DC Offset and checking in [message #96049 is a reply to message #96048] |
Sun, 17 February 2008 13:47 |
mike audet[3]
Messages: 88
Registered: June 2008
|
Member |
|
|
Hi Aaron,
The trouble is the algorithm. There are 3 dc offset algos in the paris code
that I have, and none of them work for this. My working theory is that all
of them try to detect a constant signal below a selected frequency (5 or
10 Hz) and subtract it from the output or input. I think that the offset
from the eq has something to do with oscillation in the eq, so it isn't constant
and doesn't get picked up as DC offset.
This may just be a limitation of the PARIS eq algos. I'm personally not
finding it to be a big deal, but if anyone has another algo to try, I'll
plug it in a give it a whirl. There may also be a better crossover algo
to try. I found the one I'm working with in a comment in the paris code.
I'm sure there are others out there, I just don't know any of them. :)
Mike
"Aaron Allen" <know-spam@not_here.dude> wrote:
>This may seem completely simplistic, but would building a EDS DSP DC offset
>plug (separate or as part of the monoband) that's user adjustable alleviate
>the immediate problem?
>
>AA
>
>
>"Mike Audet" <mike@..> wrote in message news:47b86149$1@linux...
>>
>> Hi All,
>>
>> I've been working on a mono-band version of the multiband compressor so
>> that
>> we could use less dsp when there is just one offending band. This will
be
>> great for compressing just the lows or as a deesser.
>>
>> I've got the mono version working, and I should have the stereo version
>> finished
>> soon. The mono version allows 4 instances, compared to two instances for
>> the full multi band.
>>
>> I've been investigating the DC offset issues in the crossover. It seems
>> that whenever any PARIS eq is set to a narrow band and at a low frequency,
>> it generates some DC offset. I've tried putting various DC offset filters
>> before and after the EQ, but they don't seem to help.
>>
>> If anyone out there is skilled in DSP math and has some ideas for how
to
>> filter this better, I would love to hear from you. As of right now, I'm
>> out of ideas on how to fix this. Not that it is a huge big deal. I'm
>> getting
>> 1% DC offset measurements by just tweaking the settings to minimize the
>> effects.
>>
>> Anyway, I just thought I'd check in and let everyone know I'm not dead.
>>
>> All the best,
>>
>> Mike
>
>
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| Re: DC Offset and checking in [message #96050 is a reply to message #96045] |
Sun, 17 February 2008 15:29 |
Kim
Messages: 1246
Registered: October 2005
|
Senior Member |
|
|
Mike,
Just thinking that perhaps a DC offset meter might be appropriate. If such
a thing takes minimal resources you could build it in to the plug, or if
it requires more resources then perhaps a separate plug allowing people to
pop it in just to check the offset and pop it back out again once they are
happy that nothing silly is going on DC wise.
Just a thought. Easy for me to sit here and give you work I know, but it
might be easier than fixing the issue while making the plugs more usable,
and indeed if made as a separate plug it could be used on ALL EQ's not just
that one. Given the Paris DSP resource limit I'm thinking it's rare that
all four Paris DSP slots are used on a channel anyhow.
Cheers,
Kim.
"Mike Audet" <mike@..> wrote:
>
>Hi All,
>
>I've been working on a mono-band version of the multiband compressor so
that
>we could use less dsp when there is just one offending band. This will
be
>great for compressing just the lows or as a deesser.
>
>I've got the mono version working, and I should have the stereo version
finished
>soon. The mono version allows 4 instances, compared to two instances for
>the full multi band.
>
>I've been investigating the DC offset issues in the crossover. It seems
>that whenever any PARIS eq is set to a narrow band and at a low frequency,
>it generates some DC offset. I've tried putting various DC offset filters
>before and after the EQ, but they don't seem to help.
>
>If anyone out there is skilled in DSP math and has some ideas for how to
>filter this better, I would love to hear from you. As of right now, I'm
>out of ideas on how to fix this. Not that it is a huge big deal. I'm getting
>1% DC offset measurements by just tweaking the settings to minimize the
>effects.
>
>Anyway, I just thought I'd check in and let everyone know I'm not dead.
>
>All the best,
>
>Mike
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| Re: DC Offset and checking in [message #96051 is a reply to message #96049] |
Sun, 17 February 2008 15:32 |
Kim
Messages: 1246
Registered: October 2005
|
Senior Member |
|
|
Instead of using a DC offset algo, could you use a low pass eq and just set
it really low... just block everything under 10Hz?
That may be what the existing code is doing perhaps, but it might be worth
testing. Indeed you could test it by plugging in an existing EQ and hence
not even have to code anything.
Cheers,
Kim.
"Mike Audet" <mike@..> wrote:
>
>Hi Aaron,
>
>The trouble is the algorithm. There are 3 dc offset algos in the paris
code
>that I have, and none of them work for this. My working theory is that
all
>of them try to detect a constant signal below a selected frequency (5 or
>10 Hz) and subtract it from the output or input. I think that the offset
>from the eq has something to do with oscillation in the eq, so it isn't
constant
>and doesn't get picked up as DC offset.
>
>This may just be a limitation of the PARIS eq algos. I'm personally not
>finding it to be a big deal, but if anyone has another algo to try, I'll
>plug it in a give it a whirl. There may also be a better crossover algo
>to try. I found the one I'm working with in a comment in the paris code.
> I'm sure there are others out there, I just don't know any of them. :)
>
>Mike
>
>
>"Aaron Allen" <know-spam@not_here.dude> wrote:
>>This may seem completely simplistic, but would building a EDS DSP DC offset
>
>>plug (separate or as part of the monoband) that's user adjustable alleviate
>
>>the immediate problem?
>>
>>AA
>>
>>
>>"Mike Audet" <mike@..> wrote in message news:47b86149$1@linux...
>>>
>>> Hi All,
>>>
>>> I've been working on a mono-band version of the multiband compressor
so
>
>>> that
>>> we could use less dsp when there is just one offending band. This will
>be
>>> great for compressing just the lows or as a deesser.
>>>
>>> I've got the mono version working, and I should have the stereo version
>
>>> finished
>>> soon. The mono version allows 4 instances, compared to two instances
for
>>> the full multi band.
>>>
>>> I've been investigating the DC offset issues in the crossover. It seems
>>> that whenever any PARIS eq is set to a narrow band and at a low frequency,
>>> it generates some DC offset. I've tried putting various DC offset filters
>>> before and after the EQ, but they don't seem to help.
>>>
>>> If anyone out there is skilled in DSP math and has some ideas for how
>to
>>> filter this better, I would love to hear from you. As of right now,
I'm
>>> out of ideas on how to fix this. Not that it is a huge big deal. I'm
>
>>> getting
>>> 1% DC offset measurements by just tweaking the settings to minimize the
>>> effects.
>>>
>>> Anyway, I just thought I'd check in and let everyone know I'm not dead.
>>>
>>> All the best,
>>>
>>> Mike
>>
>>
>
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| Re: DC Offset and checking in [message #96053 is a reply to message #96045] |
Sun, 17 February 2008 17:37 |
Dimitrios
Messages: 1056
Registered: August 2005
|
Senior Member |
|
|
Hi Mike !
Nice you are still on boat !!!
We count on your findings here !
Regarding these quirks with eq , yes maybe these are XP oriented.
Based on some tests I did there was at least one band on EQ (the lowest)
that was acting differently under XP than under Me.
This was confirmed by other users.
Another thing that confuses me is some frequency bumps around 500 hz or
so coming from the eq especially noticable with drums when mixing.
I may say that frequency wise Paris is not super stable and always trying
to use compressors to overcome...
Anyone else sharing these findings ?
Regards,
Dimitrios
"Mike Audet" <mike@..> wrote:
>
>Hi All,
>
>I've been working on a mono-band version of the multiband compressor so
that
>we could use less dsp when there is just one offending band. This will
be
>great for compressing just the lows or as a deesser.
>
>I've got the mono version working, and I should have the stereo version
finished
>soon. The mono version allows 4 instances, compared to two instances for
>the full multi band.
>
>I've been investigating the DC offset issues in the crossover. It seems
>that whenever any PARIS eq is set to a narrow band and at a low frequency,
>it generates some DC offset. I've tried putting various DC offset filters
>before and after the EQ, but they don't seem to help.
>
>If anyone out there is skilled in DSP math and has some ideas for how to
>filter this better, I would love to hear from you. As of right now, I'm
>out of ideas on how to fix this. Not that it is a huge big deal. I'm getting
>1% DC offset measurements by just tweaking the settings to minimize the
>effects.
>
>Anyway, I just thought I'd check in and let everyone know I'm not dead.
>
>All the best,
>
>Mike
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| Re: DC Offset and checking in [message #96064 is a reply to message #96053] |
Mon, 18 February 2008 12:20 |
tonehouse
Messages: 184
Registered: July 2006
|
Senior Member |
|
|
Yes Dinitrios ,thats what I reflected in my earlier message. The EQ has been
screwed up since the XP conversion.." low frequency artifacts"..call it DC
offset if you like...DC offset is an easy thing to get rid of anyhow,takes
about 10 seconds in Wavelab,,
"Dimitrios" <musurgio@otenet.gr> wrote in message news:47b8d34d$1@linux...
>
> Hi Mike !
> Nice you are still on boat !!!
> We count on your findings here !
> Regarding these quirks with eq , yes maybe these are XP oriented.
> Based on some tests I did there was at least one band on EQ (the lowest)
> that was acting differently under XP than under Me.
> This was confirmed by other users.
> Another thing that confuses me is some frequency bumps around 500 hz or
> so coming from the eq especially noticable with drums when mixing.
> I may say that frequency wise Paris is not super stable and always trying
> to use compressors to overcome...
> Anyone else sharing these findings ?
> Regards,
> Dimitrios
>
> "Mike Audet" <mike@..> wrote:
> >
> >Hi All,
> >
> >I've been working on a mono-band version of the multiband compressor so
> that
> >we could use less dsp when there is just one offending band. This will
> be
> >great for compressing just the lows or as a deesser.
> >
> >I've got the mono version working, and I should have the stereo version
> finished
> >soon. The mono version allows 4 instances, compared to two instances for
> >the full multi band.
> >
> >I've been investigating the DC offset issues in the crossover. It seems
> >that whenever any PARIS eq is set to a narrow band and at a low
frequency,
> >it generates some DC offset. I've tried putting various DC offset
filters
> >before and after the EQ, but they don't seem to help.
> >
> >If anyone out there is skilled in DSP math and has some ideas for how to
> >filter this better, I would love to hear from you. As of right now, I'm
> >out of ideas on how to fix this. Not that it is a huge big deal. I'm
getting
> >1% DC offset measurements by just tweaking the settings to minimize the
> >effects.
> >
> >Anyway, I just thought I'd check in and let everyone know I'm not dead.
> >
> >All the best,
> >
> >Mike
>
|
|
|
|
| Re: DC Offset and checking in [message #96065 is a reply to message #96064] |
Mon, 18 February 2008 14:27 |
Aaron Allen
Messages: 1988
Registered: May 2008
|
Senior Member |
|
|
Betcha that's directly related to the distortion reaction being different
from ME/98 to XP/2000 as well. If anyone knows how to reach Chris Thoman, he
may know the answer to that.
AA
"tonehouse" <zmcleod@comcast.net> wrote in message news:47b9e87f@linux...
> Yes Dinitrios ,thats what I reflected in my earlier message. The EQ has
> been
> screwed up since the XP conversion.." low frequency artifacts"..call it DC
> offset if you like...DC offset is an easy thing to get rid of anyhow,takes
> about 10 seconds in Wavelab,,
> "Dimitrios" <musurgio@otenet.gr> wrote in message news:47b8d34d$1@linux...
>>
>> Hi Mike !
>> Nice you are still on boat !!!
>> We count on your findings here !
>> Regarding these quirks with eq , yes maybe these are XP oriented.
>> Based on some tests I did there was at least one band on EQ (the lowest)
>> that was acting differently under XP than under Me.
>> This was confirmed by other users.
>> Another thing that confuses me is some frequency bumps around 500 hz or
>> so coming from the eq especially noticable with drums when mixing.
>> I may say that frequency wise Paris is not super stable and always trying
>> to use compressors to overcome...
>> Anyone else sharing these findings ?
>> Regards,
>> Dimitrios
>>
>> "Mike Audet" <mike@..> wrote:
>> >
>> >Hi All,
>> >
>> >I've been working on a mono-band version of the multiband compressor so
>> that
>> >we could use less dsp when there is just one offending band. This will
>> be
>> >great for compressing just the lows or as a deesser.
>> >
>> >I've got the mono version working, and I should have the stereo version
>> finished
>> >soon. The mono version allows 4 instances, compared to two instances for
>> >the full multi band.
>> >
>> >I've been investigating the DC offset issues in the crossover. It seems
>> >that whenever any PARIS eq is set to a narrow band and at a low
> frequency,
>> >it generates some DC offset. I've tried putting various DC offset
> filters
>> >before and after the EQ, but they don't seem to help.
>> >
>> >If anyone out there is skilled in DSP math and has some ideas for how to
>> >filter this better, I would love to hear from you. As of right now, I'm
>> >out of ideas on how to fix this. Not that it is a huge big deal. I'm
> getting
>> >1% DC offset measurements by just tweaking the settings to minimize the
>> >effects.
>> >
>> >Anyway, I just thought I'd check in and let everyone know I'm not dead.
>> >
>> >All the best,
>> >
>> >Mike
>>
>
>
|
|
|
|
| Re: DC Offset and Bass EQ [message #96068 is a reply to message #96064] |
Mon, 18 February 2008 15:29 |
Wayne Carson
Messages: 86
Registered: June 2007
|
Member |
|
|
Hi Tonehouse,
I usually take my final mixes (Paris mixdown) and (create a stereo audio
file .wav) from the audio window and drop them into Wavelab to check the DC
offset and do any gain up/down balancing with other final mixes (my cheap
man's CD finalize tool). I generally find very little offset and some none
at all during this process. Is this what you are referring to or are you
saying to run each individual track in Wavelab to remove any DC offset and
convert them back to .pafs and then begin mixing? Wouldn't this be
cumbersome?
Also, you mention that you avoiding using boost or cut on the bass because
of artifacts. Did you mean on the EQ trim or anywhere in the graphic EQ?
Since many of us are XP users it can make a difference knowing what you
meant since the bass is a tough instrument to EQ in the first place and we
may be complicating or making it worse with EQ. I went with BT's
recommendation to crank the trim on bass . . . but he was on Win98, if I
recall correctly. But, Brian also stated on the DVD, that Paris was a bit
mushy in the low to low/mid area so maybe it's been there all along.
Concerning DC offset, Mike Audet said he encountered it with a narrow band
EQ at a low frequency. Sounds like there might be some correlation between
the two.
Anyhow, I'm just happy to learn so much from this group. It helps me on
every mix I do!!! Have a great day.
Wayne
"tonehouse" <zmcleod@comcast.net> wrote in message news:47b9e87f@linux...
> Yes Dinitrios ,thats what I reflected in my earlier message. The EQ has
> been
> screwed up since the XP conversion.." low frequency artifacts"..call it DC
> offset if you like...DC offset is an easy thing to get rid of anyhow,takes
> about 10 seconds in Wavelab,,
> "Dimitrios" <musurgio@otenet.gr> wrote in message news:47b8d34d$1@linux...
>>
>> Hi Mike !
>> Nice you are still on boat !!!
>> We count on your findings here !
>> Regarding these quirks with eq , yes maybe these are XP oriented.
>> Based on some tests I did there was at least one band on EQ (the lowest)
>> that was acting differently under XP than under Me.
>> This was confirmed by other users.
>> Another thing that confuses me is some frequency bumps around 500 hz or
>> so coming from the eq especially noticable with drums when mixing.
>> I may say that frequency wise Paris is not super stable and always trying
>> to use compressors to overcome...
>> Anyone else sharing these findings ?
>> Regards,
>> Dimitrios
>>
>> "Mike Audet" <mike@..> wrote:
>> >
>> >Hi All,
>> >
>> >I've been working on a mono-band version of the multiband compressor so
>> that
>> >we could use less dsp when there is just one offending band. This will
>> be
>> >great for compressing just the lows or as a deesser.
>> >
>> >I've got the mono version working, and I should have the stereo version
>> finished
>> >soon. The mono version allows 4 instances, compared to two instances for
>> >the full multi band.
>> >
>> >I've been investigating the DC offset issues in the crossover. It seems
>> >that whenever any PARIS eq is set to a narrow band and at a low
> frequency,
>> >it generates some DC offset. I've tried putting various DC offset
> filters
>> >before and after the EQ, but they don't seem to help.
>> >
>> >If anyone out there is skilled in DSP math and has some ideas for how to
>> >filter this better, I would love to hear from you. As of right now, I'm
>> >out of ideas on how to fix this. Not that it is a huge big deal. I'm
> getting
>> >1% DC offset measurements by just tweaking the settings to minimize the
>> >effects.
>> >
>> >Anyway, I just thought I'd check in and let everyone know I'm not dead.
>> >
>> >All the best,
>> >
>> >Mike
>>
>
>
|
|
|
|
| Re: DC Offset and Bass EQ [message #96069 is a reply to message #96068] |
Mon, 18 February 2008 17:54 |
mike audet[3]
Messages: 88
Registered: June 2008
|
Member |
|
|
Hi Guys,
I just checked, and you can use the high-pass filter in the stock paris eq
to filter out the dc offset. It has to be after the effect. Placing an
eq before the crossover doesn't help. I think it's probably best to use
the stock eqs instead of embedding another eq in the effect if only to conserve
DSP resources. The stock EQs use different, reserved chips, whereas if I
embed the eq in the effect, it will take up the more scarce effect dsp.
Let me know what you think, though. I can add another eq if the consensus
is that we should go that way.
All the best,
Mike
"Wayne Carson" <carson_wayne@msn.com> wrote:
>Hi Tonehouse,
>
>I usually take my final mixes (Paris mixdown) and (create a stereo audio
>file .wav) from the audio window and drop them into Wavelab to check the
DC
>offset and do any gain up/down balancing with other final mixes (my cheap
>man's CD finalize tool). I generally find very little offset and some none
>at all during this process. Is this what you are referring to or are you
>saying to run each individual track in Wavelab to remove any DC offset and
>convert them back to .pafs and then begin mixing? Wouldn't this be
>cumbersome?
>
>Also, you mention that you avoiding using boost or cut on the bass because
>of artifacts. Did you mean on the EQ trim or anywhere in the graphic EQ?
>Since many of us are XP users it can make a difference knowing what you
>meant since the bass is a tough instrument to EQ in the first place and
we
>may be complicating or making it worse with EQ. I went with BT's
>recommendation to crank the trim on bass . . . but he was on Win98, if I
>recall correctly. But, Brian also stated on the DVD, that Paris was a bit
>mushy in the low to low/mid area so maybe it's been there all along.
>
>Concerning DC offset, Mike Audet said he encountered it with a narrow band
>EQ at a low frequency. Sounds like there might be some correlation between
>the two.
>
>Anyhow, I'm just happy to learn so much from this group. It helps me on
>every mix I do!!! Have a great day.
>
>Wayne
>
>
>
>"tonehouse" <zmcleod@comcast.net> wrote in message news:47b9e87f@linux...
>> Yes Dinitrios ,thats what I reflected in my earlier message. The EQ has
>> been
>> screwed up since the XP conversion.." low frequency artifacts"..call it
DC
>> offset if you like...DC offset is an easy thing to get rid of anyhow,takes
>> about 10 seconds in Wavelab,,
>> "Dimitrios" <musurgio@otenet.gr> wrote in message news:47b8d34d$1@linux...
>>>
>>> Hi Mike !
>>> Nice you are still on boat !!!
>>> We count on your findings here !
>>> Regarding these quirks with eq , yes maybe these are XP oriented.
>>> Based on some tests I did there was at least one band on EQ (the lowest)
>>> that was acting differently under XP than under Me.
>>> This was confirmed by other users.
>>> Another thing that confuses me is some frequency bumps around 500 hz
or
>>> so coming from the eq especially noticable with drums when mixing.
>>> I may say that frequency wise Paris is not super stable and always trying
>>> to use compressors to overcome...
>>> Anyone else sharing these findings ?
>>> Regards,
>>> Dimitrios
>>>
>>> "Mike Audet" <mike@..> wrote:
>>> >
>>> >Hi All,
>>> >
>>> >I've been working on a mono-band version of the multiband compressor
so
>>> that
>>> >we could use less dsp when there is just one offending band. This will
>>> be
>>> >great for compressing just the lows or as a deesser.
>>> >
>>> >I've got the mono version working, and I should have the stereo version
>>> finished
>>> >soon. The mono version allows 4 instances, compared to two instances
for
>>> >the full multi band.
>>> >
>>> >I've been investigating the DC offset issues in the crossover. It seems
>>> >that whenever any PARIS eq is set to a narrow band and at a low
>> frequency,
>>> >it generates some DC offset. I've tried putting various DC offset
>> filters
>>> >before and after the EQ, but they don't seem to help.
>>> >
>>> >If anyone out there is skilled in DSP math and has some ideas for how
to
>>> >filter this better, I would love to hear from you. As of right now,
I'm
>>> >out of ideas on how to fix this. Not that it is a huge big deal. I'm
>> getting
>>> >1% DC offset measurements by just tweaking the settings to minimize
the
>>> >effects.
>>> >
>>> >Anyway, I just thought I'd check in and let everyone know I'm not dead.
>>> >
>>> >All the best,
>>> >
>>> >Mike
>>>
>>
>>
>
>
|
|
|
|
| Re: DC Offset and Bass EQ [message #96077 is a reply to message #96069] |
Tue, 19 February 2008 07:35 |
Neil
Messages: 1645
Registered: April 2006
|
Senior Member |
|
|
I don't know if this makes any difference, but i use the vst
version of the Paris eq, and I've noticed some weird stuff going
on with low freqs, too... what i hear is what i'd describe as
a "sputtering" sound. and you don't even need to be rolling
at the time, either. So, i don't use it on anything requiring
adjustments of lo-mids & lows.
Neil
"Mike Audet" <mike@..> wrote:
>
>Hi Guys,
>
>I just checked, and you can use the high-pass filter in the stock paris
eq
>to filter out the dc offset. It has to be after the effect. Placing an
>eq before the crossover doesn't help. I think it's probably best to use
>the stock eqs instead of embedding another eq in the effect if only to conserve
>DSP resources. The stock EQs use different, reserved chips, whereas if
I
>embed the eq in the effect, it will take up the more scarce effect dsp.
>
>Let me know what you think, though. I can add another eq if the consensus
>is that we should go that way.
>
>All the best,
>
>Mike
>
>
>"Wayne Carson" <carson_wayne@msn.com> wrote:
>>Hi Tonehouse,
>>
>>I usually take my final mixes (Paris mixdown) and (create a stereo audio
>
>>file .wav) from the audio window and drop them into Wavelab to check the
>DC
>>offset and do any gain up/down balancing with other final mixes (my cheap
>
>>man's CD finalize tool). I generally find very little offset and some
none
>
>>at all during this process. Is this what you are referring to or are you
>
>>saying to run each individual track in Wavelab to remove any DC offset
and
>
>>convert them back to .pafs and then begin mixing? Wouldn't this be
>>cumbersome?
>>
>>Also, you mention that you avoiding using boost or cut on the bass because
>
>>of artifacts. Did you mean on the EQ trim or anywhere in the graphic EQ?
>
>>Since many of us are XP users it can make a difference knowing what you
>
>>meant since the bass is a tough instrument to EQ in the first place and
>we
>>may be complicating or making it worse with EQ. I went with BT's
>>recommendation to crank the trim on bass . . . but he was on Win98, if
I
>
>>recall correctly. But, Brian also stated on the DVD, that Paris was a
bit
>
>>mushy in the low to low/mid area so maybe it's been there all along.
>>
>>Concerning DC offset, Mike Audet said he encountered it with a narrow band
>
>>EQ at a low frequency. Sounds like there might be some correlation between
>
>>the two.
>>
>>Anyhow, I'm just happy to learn so much from this group. It helps me on
>
>>every mix I do!!! Have a great day.
>>
>>Wayne
>>
>>
>>
>>"tonehouse" <zmcleod@comcast.net> wrote in message news:47b9e87f@linux...
>>> Yes Dinitrios ,thats what I reflected in my earlier message. The EQ has
>
>>> been
>>> screwed up since the XP conversion.." low frequency artifacts"..call
it
>DC
>>> offset if you like...DC offset is an easy thing to get rid of anyhow,takes
>>> about 10 seconds in Wavelab,,
>>> "Dimitrios" <musurgio@otenet.gr> wrote in message news:47b8d34d$1@linux...
>>>>
>>>> Hi Mike !
>>>> Nice you are still on boat !!!
>>>> We count on your findings here !
>>>> Regarding these quirks with eq , yes maybe these are XP oriented.
>>>> Based on some tests I did there was at least one band on EQ (the lowest)
>>>> that was acting differently under XP than under Me.
>>>> This was confirmed by other users.
>>>> Another thing that confuses me is some frequency bumps around 500 hz
>or
>>>> so coming from the eq especially noticable with drums when mixing.
>>>> I may say that frequency wise Paris is not super stable and always trying
>>>> to use compressors to overcome...
>>>> Anyone else sharing these findings ?
>>>> Regards,
>>>> Dimitrios
>>>>
>>>> "Mike Audet" <mike@..> wrote:
>>>> >
>>>> >Hi All,
>>>> >
>>>> >I've been working on a mono-band version of the multiband compressor
>so
>>>> that
>>>> >we could use less dsp when there is just one offending band. This
will
>>>> be
>>>> >great for compressing just the lows or as a deesser.
>>>> >
>>>> >I've got the mono version working, and I should have the stereo version
>>>> finished
>>>> >soon. The mono version allows 4 instances, compared to two instances
>for
>>>> >the full multi band.
>>>> >
>>>> >I've been investigating the DC offset issues in the crossover. It
seems
>>>> >that whenever any PARIS eq is set to a narrow band and at a low
>>> frequency,
>>>> >it generates some DC offset. I've tried putting various DC offset
>>> filters
>>>> >before and after the EQ, but they don't seem to help.
>>>> >
>>>> >If anyone out there is skilled in DSP math and has some ideas for how
>to
>>>> >filter this better, I would love to hear from you. As of right now,
>I'm
>>>> >out of ideas on how to fix this. Not that it is a huge big deal.
I'm
>>> getting
>>>> >1% DC offset measurements by just tweaking the settings to minimize
>the
>>>> >effects.
>>>> >
>>>> >Anyway, I just thought I'd check in and let everyone know I'm not dead.
>>>> >
>>>> >All the best,
>>>> >
>>>> >Mike
>>>>
>>>
>>>
>>
>>
>
|
|
|
|
| Re: DC Offset and Bass EQ [message #96081 is a reply to message #96077] |
Tue, 19 February 2008 11:13 |
tonehouse
Messages: 184
Registered: July 2006
|
Senior Member |
|
|
I agree with Neil .I am not sure exactly what triggers it,but if I cut or
boost much low freq (100 or below)on the Paris eq,most of the time it gets a
strange distortion,or artifact to the sound...The EQ plug that works with
multiple instances and sounds great with Paris is the PSP MasterQ..hardly
any noticible latency either. I was referring to using Wavelab as the
mixdown,and removing DC at that stage.
"Neil" <IOUOUI@OI.com> wrote in message news:47bae93a$1@linux...
>
> I don't know if this makes any difference, but i use the vst
> version of the Paris eq, and I've noticed some weird stuff going
> on with low freqs, too... what i hear is what i'd describe as
> a "sputtering" sound. and you don't even need to be rolling
> at the time, either. So, i don't use it on anything requiring
> adjustments of lo-mids & lows.
>
> Neil
>
>
> "Mike Audet" <mike@..> wrote:
> >
> >Hi Guys,
> >
> >I just checked, and you can use the high-pass filter in the stock paris
> eq
> >to filter out the dc offset. It has to be after the effect. Placing an
> >eq before the crossover doesn't help. I think it's probably best to use
> >the stock eqs instead of embedding another eq in the effect if only to
conserve
> >DSP resources. The stock EQs use different, reserved chips, whereas if
> I
> >embed the eq in the effect, it will take up the more scarce effect dsp.
> >
> >Let me know what you think, though. I can add another eq if the
consensus
> >is that we should go that way.
> >
> >All the best,
> >
> >Mike
> >
> >
> >"Wayne Carson" <carson_wayne@msn.com> wrote:
> >>Hi Tonehouse,
> >>
> >>I usually take my final mixes (Paris mixdown) and (create a stereo audio
> >
> >>file .wav) from the audio window and drop them into Wavelab to check the
> >DC
> >>offset and do any gain up/down balancing with other final mixes (my
cheap
> >
> >>man's CD finalize tool). I generally find very little offset and some
> none
> >
> >>at all during this process. Is this what you are referring to or are
you
> >
> >>saying to run each individual track in Wavelab to remove any DC offset
> and
> >
> >>convert them back to .pafs and then begin mixing? Wouldn't this be
> >>cumbersome?
> >>
> >>Also, you mention that you avoiding using boost or cut on the bass
because
> >
> >>of artifacts. Did you mean on the EQ trim or anywhere in the graphic
EQ?
> >
> >>Since many of us are XP users it can make a difference knowing what you
> >
> >>meant since the bass is a tough instrument to EQ in the first place and
> >we
> >>may be complicating or making it worse with EQ. I went with BT's
> >>recommendation to crank the trim on bass . . . but he was on Win98, if
> I
> >
> >>recall correctly. But, Brian also stated on the DVD, that Paris was a
> bit
> >
> >>mushy in the low to low/mid area so maybe it's been there all along.
> >>
> >>Concerning DC offset, Mike Audet said he encountered it with a narrow
band
> >
> >>EQ at a low frequency. Sounds like there might be some correlation
between
> >
> >>the two.
> >>
> >>Anyhow, I'm just happy to learn so much from this group. It helps me on
> >
> >>every mix I do!!! Have a great day.
> >>
> >>Wayne
> >>
> >>
> >>
> >>"tonehouse" <zmcleod@comcast.net> wrote in message
news:47b9e87f@linux...
> >>> Yes Dinitrios ,thats what I reflected in my earlier message. The EQ
has
> >
> >>> been
> >>> screwed up since the XP conversion.." low frequency artifacts"..call
> it
> >DC
> >>> offset if you like...DC offset is an easy thing to get rid of
anyhow,takes
> >>> about 10 seconds in Wavelab,,
> >>> "Dimitrios" <musurgio@otenet.gr> wrote in message
news:47b8d34d$1@linux...
> >>>>
> >>>> Hi Mike !
> >>>> Nice you are still on boat !!!
> >>>> We count on your findings here !
> >>>> Regarding these quirks with eq , yes maybe these are XP oriented.
> >>>> Based on some tests I did there was at least one band on EQ (the
lowest)
> >>>> that was acting differently under XP than under Me.
> >>>> This was confirmed by other users.
> >>>> Another thing that confuses me is some frequency bumps around 500 hz
> >or
> >>>> so coming from the eq especially noticable with drums when mixing.
> >>>> I may say that frequency wise Paris is not super stable and always
trying
> >>>> to use compressors to overcome...
> >>>> Anyone else sharing these findings ?
> >>>> Regards,
> >>>> Dimitrios
> >>>>
> >>>> "Mike Audet" <mike@..> wrote:
> >>>> >
> >>>> >Hi All,
> >>>> >
> >>>> >I've been working on a mono-band version of the multiband compressor
> >so
> >>>> that
> >>>> >we could use less dsp when there is just one offending band. This
> will
> >>>> be
> >>>> >great for compressing just the lows or as a deesser.
> >>>> >
> >>>> >I've got the mono version working, and I should have the stereo
version
> >>>> finished
> >>>> >soon. The mono version allows 4 instances, compared to two instances
> >for
> >>>> >the full multi band.
> >>>> >
> >>>> >I've been investigating the DC offset issues in the crossover. It
> seems
> >>>> >that whenever any PARIS eq is set to a narrow band and at a low
> >>> frequency,
> >>>> >it generates some DC offset. I've tried putting various DC offset
> >>> filters
> >>>> >before and after the EQ, but they don't seem to help.
> >>>> >
> >>>> >If anyone out there is skilled in DSP math and has some ideas for
how
> >to
> >>>> >filter this better, I would love to hear from you. As of right now,
> >I'm
> >>>> >out of ideas on how to fix this. Not that it is a huge big deal.
> I'm
> >>> getting
> >>>> >1% DC offset measurements by just tweaking the settings to minimize
> >the
> >>>> >effects.
> >>>> >
> >>>> >Anyway, I just thought I'd check in and let everyone know I'm not
dead.
> >>>> >
> >>>> >All the best,
> >>>> >
> >>>> >Mike
> >>>>
> >>>
> >>>
> >>
> >>
> >
>
|
|
|
|
| Re: DC Offset and Bass EQ [message #96082 is a reply to message #96081] |
Tue, 19 February 2008 11:30 |
Tom Bruhl
Messages: 1368
Registered: June 2007
|
Senior Member |
|
|
This is a multi-part message in MIME format.
------=_NextPart_000_0030_01C87304.054069B0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Have you guys tried using another Paris band for lows
instead of eq band 1? #1 is particularly blatty in the
lows. The VST was designed to model the EDS eq
top to bottom . . . so be it.
Tom
"tonehouse" <zmcleod@comcast.net> wrote in message =
news:47bb2a7f@linux...
I agree with Neil .I am not sure exactly what triggers it,but if I cut =
or
boost much low freq (100 or below)on the Paris eq,most of the time it =
gets a
strange distortion,or artifact to the sound...The EQ plug that works =
with
multiple instances and sounds great with Paris is the PSP =
MasterQ..hardly
any noticible latency either. I was referring to using Wavelab as the
mixdown,and removing DC at that stage.
"Neil" <IOUOUI@OI.com> wrote in message news:47bae93a$1@linux...
>
> I don't know if this makes any difference, but i use the vst
> version of the Paris eq, and I've noticed some weird stuff going
> on with low freqs, too... what i hear is what i'd describe as
> a "sputtering" sound. and you don't even need to be rolling
> at the time, either. So, i don't use it on anything requiring
> adjustments of lo-mids & lows.
>
> Neil
>
>
> "Mike Audet" <mike@..> wrote:
> >
> >Hi Guys,
> >
> >I just checked, and you can use the high-pass filter in the stock =
paris
> eq
> >to filter out the dc offset. It has to be after the effect. =
Placing an
> >eq before the crossover doesn't help. I think it's probably best =
to use
> >the stock eqs instead of embedding another eq in the effect if only =
to
conserve
> >DSP resources. The stock EQs use different, reserved chips, =
whereas if
> I
> >embed the eq in the effect, it will take up the more scarce effect =
dsp.
> >
> >Let me know what you think, though. I can add another eq if the
consensus
> >is that we should go that way.
> >
> >All the best,
> >
> >Mike
> >
> >
> >"Wayne Carson" <carson_wayne@msn.com> wrote:
> >>Hi Tonehouse,
> >>
> >>I usually take my final mixes (Paris mixdown) and (create a stereo =
audio
> >
> >>file .wav) from the audio window and drop them into Wavelab to =
check the
> >DC
> >>offset and do any gain up/down balancing with other final mixes =
(my
cheap
> >
> >>man's CD finalize tool). I generally find very little offset and =
some
> none
> >
> >>at all during this process. Is this what you are referring to or =
are
you
> >
> >>saying to run each individual track in Wavelab to remove any DC =
offset
> and
> >
> >>convert them back to .pafs and then begin mixing? Wouldn't this =
be
> >>cumbersome?
> >>
> >>Also, you mention that you avoiding using boost or cut on the bass
because
> >
> >>of artifacts. Did you mean on the EQ trim or anywhere in the =
graphic
EQ?
> >
> >>Since many of us are XP users it can make a difference knowing =
what you
> >
> >>meant since the bass is a tough instrument to EQ in the first =
place and
> >we
> >>may be complicating or making it worse with EQ. I went with BT's
> >>recommendation to crank the trim on bass . . . but he was on =
Win98, if
> I
> >
> >>recall correctly. But, Brian also stated on the DVD, that Paris =
was a
> bit
> >
> >>mushy in the low to low/mid area so maybe it's been there all =
along.
> >>
> >>Concerning DC offset, Mike Audet said he encountered it with a =
narrow
band
> >
> >>EQ at a low frequency. Sounds like there might be some =
correlation
between
> >
> >>the two.
> >>
> >>Anyhow, I'm just happy to learn so much from this group. It helps =
me on
> >
> >>every mix I do!!! Have a great day.
> >>
> >>Wayne
> >>
> >>
> >>
> >>"tonehouse" <zmcleod@comcast.net> wrote in message
news:47b9e87f@linux...
> >>> Yes Dinitrios ,thats what I reflected in my earlier message. The =
EQ
has
> >
> >>> been
> >>> screwed up since the XP conversion.." low frequency =
artifacts"..call
> it
> >DC
> >>> offset if you like...DC offset is an easy thing to get rid of
anyhow,takes
> >>> about 10 seconds in Wavelab,,
> >>> "Dimitrios" <musurgio@otenet.gr> wrote in message
news:47b8d34d$1@linux...
> >>>>
> >>>> Hi Mike !
> >>>> Nice you are still on boat !!!
> >>>> We count on your findings here !
> >>>> Regarding these quirks with eq , yes maybe these are XP =
oriented.
> >>>> Based on some tests I did there was at least one band on EQ =
(the
lowest)
> >>>> that was acting differently under XP than under Me.
> >>>> This was confirmed by other users.
> >>>> Another thing that confuses me is some frequency bumps around =
500 hz
> >or
> >>>> so coming from the eq especially noticable with drums when =
mixing.
> >>>> I may say that frequency wise Paris is not super stable and =
always
trying
> >>>> to use compressors to overcome...
> >>>> Anyone else sharing these findings ?
> >>>> Regards,
> >>>> Dimitrios
> >>>>
> >>>> "Mike Audet" <mike@..> wrote:
> >>>> >
> >>>> >Hi All,
> >>>> >
> >>>> >I've been working on a mono-band version of the multiband =
compressor
> >so
> >>>> that
> >>>> >we could use less dsp when there is just one offending band. =
This
> will
> >>>> be
> >>>> >great for compressing just the lows or as a deesser.
> >>>> >
> >>>> >I've got the mono version working, and I should have the =
stereo
version
> >>>> finished
> >>>> >soon. The mono version allows 4 instances, compared to two =
instances
> >for
> >>>> >the full multi band.
> >>>> >
> >>>> >I've been investigating the DC offset issues in the crossover. =
It
> seems
> >>>> >that whenever any PARIS eq is set to a narrow band and at a =
low
> >>> frequency,
> >>>> >it generates some DC offset. I've tried putting various DC =
offset
> >>> filters
> >>>> >before and after the EQ, but they don't seem to help.
> >>>> >
> >>>> >If anyone out there is skilled in DSP math and has some ideas =
for
how
> >to
> >>>> >filter this better, I would love to hear from you. As of =
right now,
> >I'm
> >>>> >out of ideas on how to fix this. Not that it is a huge big =
deal.
> I'm
> >>> getting
> >>>> >1% DC offset measurements by just tweaking the settings to =
minimize
> >the
> >>>> >effects.
> >>>> >
> >>>> >Anyway, I just thought I'd check in and let everyone know I'm =
not
dead.
> >>>> >
> >>>> >All the best,
> >>>> >
> >>>> >Mike
> >>>>
> >>>
> >>>
> >>
> >>
> >
>
I choose Polesoft Lockspam to fight spam, and you?
http://www.polesoft.com/refer.html
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<DIV><FONT face=3DArial size=3D2>Have you guys tried using another Paris =
band for=20
lows</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>instead of eq band 1? #1 is =
particularly=20
blatty in the</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>lows. The VST was designed to =
model the EDS=20
eq</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>top to bottom . . . so be =
it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Tom</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV> </DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV>"tonehouse" <<A=20
href=3D"mailto:zmcleod@comcast.net">zmcleod@comcast.net</A>> wrote =
in message=20
<A href=3D"news:47bb2a7f@linux">news:47bb2a7f@linux</A>...</DIV>I =
agree with=20
Neil .I am not sure exactly what triggers it,but if I cut or<BR>boost =
much low=20
freq (100 or below)on the Paris eq,most of the time it gets =
a<BR>strange=20
distortion,or artifact to the sound...The EQ plug that works =
with<BR>multiple=20
instances and sounds great with Paris is the PSP =
MasterQ..hardly<BR>any=20
noticible latency either. I was referring to using Wavelab as=20
the<BR>mixdown,and removing DC at that stage.<BR>"Neil" <<A=20
href=3D"mailto:IOUOUI@OI.com">IOUOUI@OI.com</A>> wrote in message =
<A=20
=
href=3D"news:47bae93a$1@linux">news:47bae93a$1@linux</A>...<BR>><BR>&g=
t; I=20
don't know if this makes any difference, but i use the vst<BR>> =
version of=20
the Paris eq, and I've noticed some weird stuff going<BR>> on with =
low=20
freqs, too... what i hear is what i'd describe as<BR>> a =
"sputtering"=20
sound. and you don't even need to be rolling<BR>> at the time, =
either. So,=20
i don't use it on anything requiring<BR>> adjustments of lo-mids =
&=20
lows.<BR>><BR>> Neil<BR>><BR>><BR>> "Mike Audet"=20
<mike@..> wrote:<BR>> ><BR>> >Hi Guys,<BR>> =
><BR>>=20
>I just checked, and you can use the high-pass filter in the stock=20
paris<BR>> eq<BR>> >to filter out the dc offset. It has =
to be=20
after the effect. Placing an<BR>> >eq before the crossover =
doesn't=20
help. I think it's probably best to use<BR>> >the stock =
eqs=20
instead of embedding another eq in the effect if only =
to<BR>conserve<BR>>=20
>DSP resources. The stock EQs use different, reserved chips, =
whereas=20
if<BR>> I<BR>> >embed the eq in the effect, it will take =
up the=20
more scarce effect dsp.<BR>> ><BR>> >Let me know what you =
think,=20
though. I can add another eq if the<BR>consensus<BR>> >is =
that we=20
should go that way.<BR>> ><BR>> >All the best,<BR>>=20
><BR>> >Mike<BR>> ><BR>> ><BR>> >"Wayne =
Carson"=20
<<A =
href=3D"mailto:carson_wayne@msn.com">carson_wayne@msn.com</A>>=20
wrote:<BR>> >>Hi Tonehouse,<BR>> >><BR>> =
>>I=20
usually take my final mixes (Paris mixdown) and (create a stereo =
audio<BR>>=20
><BR>> >>file .wav) from the audio window and drop them =
into=20
Wavelab to check the<BR>> >DC<BR>> >>offset and do any =
gain=20
up/down balancing with other final mixes (my<BR>cheap<BR>> =
><BR>>=20
>>man's CD finalize tool). I generally find very little =
offset and=20
some<BR>> none<BR>> ><BR>> >>at all during this=20
process. Is this what you are referring to or are<BR>you<BR>> =
><BR>> >>saying to run each individual track in Wavelab to =
remove=20
any DC offset<BR>> and<BR>> ><BR>> >>convert them =
back to=20
.pafs and then begin mixing? Wouldn't this be<BR>>=20
>>cumbersome?<BR>> >><BR>> >>Also, you mention =
that=20
you avoiding using boost or cut on the bass<BR>because<BR>> =
><BR>>=20
>>of artifacts. Did you mean on the EQ trim or anywhere in =
the=20
graphic<BR>EQ?<BR>> ><BR>> >>Since many of us are XP =
users it=20
can make a difference knowing what you<BR>> ><BR>> =
>>meant=20
since the bass is a tough instrument to EQ in the first place =
and<BR>>=20
>we<BR>> >>may be complicating or making it worse with =
EQ. I=20
went with BT's<BR>> >>recommendation to crank the trim on =
bass . . .=20
but he was on Win98, if<BR>> I<BR>> ><BR>> >>recall=20
correctly. But, Brian also stated on the DVD, that Paris was =
a<BR>>=20
bit<BR>> ><BR>> >>mushy in the low to low/mid area so =
maybe=20
it's been there all along.<BR>> >><BR>> >>Concerning =
DC=20
offset, Mike Audet said he encountered it with a =
narrow<BR>band<BR>>=20
><BR>> >>EQ at a low frequency. Sounds like there =
might be=20
some correlation<BR>between<BR>> ><BR>> >>the =
two.<BR>>=20
>><BR>> >>Anyhow, I'm just happy to learn so much from =
this=20
group. It helps me on<BR>> ><BR>> >>every mix I=20
do!!! Have a great day.<BR>> >><BR>> =
>>Wayne<BR>>=20
>><BR>> >><BR>> >><BR>> >>"tonehouse" =
<<A=20
href=3D"mailto:zmcleod@comcast.net">zmcleod@comcast.net</A>> wrote =
in=20
message<BR><A =
href=3D"news:47b9e87f@linux">news:47b9e87f@linux</A>...<BR>>=20
>>> Yes Dinitrios ,thats what I reflected in my earlier =
message. The=20
EQ<BR>has<BR>> ><BR>> >>> been<BR>> >>> =
screwed=20
up since the XP conversion.." low frequency artifacts"..call<BR>>=20
it<BR>> >DC<BR>> >>> offset if you like...DC offset =
is an=20
easy thing to get rid of<BR>anyhow,takes<BR>> >>> about 10 =
seconds=20
in Wavelab,,<BR>> >>> "Dimitrios" <<A=20
href=3D"mailto:musurgio@otenet.gr">musurgio@otenet.gr</A>> wrote in =
message<BR><A=20
href=3D"news:47b8d34d$1@linux">news:47b8d34d$1@linux</A>...<BR>>=20
>>>><BR>> >>>> Hi Mike !<BR>> =
>>>>=20
Nice you are still on boat !!!<BR>> >>>> We count on =
your=20
findings here !<BR>> >>>> Regarding these quirks with =
eq , yes=20
maybe these are XP oriented.<BR>> >>>> Based on some =
tests I=20
did there was at least one band on EQ (the<BR>lowest)<BR>> =
>>>>=20
that was acting differently under XP than under Me.<BR>> =
>>>>=20
This was confirmed by other users.<BR>> >>>> Another =
thing that=20
confuses me is some frequency bumps around 500 hz<BR>> =
>or<BR>>=20
>>>> so coming from the eq especially noticable with drums =
when=20
mixing.<BR>> >>>> I may say that frequency wise Paris =
is not=20
super stable and always<BR>trying<BR>> >>>> to use =
compressors=20
to overcome...<BR>> >>>> Anyone else sharing these =
findings=20
?<BR>> >>>> Regards,<BR>> >>>> =
Dimitrios<BR>>=20
>>>><BR>> >>>> "Mike Audet" <mike@..> =
wrote:<BR>> >>>> ><BR>> >>>> >Hi=20
All,<BR>> >>>> ><BR>> >>>> >I've =
been=20
working on a mono-band version of the multiband compressor<BR>>=20
>so<BR>> >>>> that<BR>> >>>> >we =
could use=20
less dsp when there is just one offending band. This<BR>>=20
will<BR>> >>>> be<BR>> >>>> >great =
for=20
compressing just the lows or as a deesser.<BR>> >>>>=20
><BR>> >>>> >I've got the mono version working, =
and I=20
should have the stereo<BR>version<BR>> >>>> =
finished<BR>>=20
>>>> >soon. The mono version allows 4 instances, =
compared to=20
two instances<BR>> >for<BR>> >>>> >the full =
multi=20
band.<BR>> >>>> ><BR>> >>>> >I've =
been=20
investigating the DC offset issues in the crossover. It<BR>>=20
seems<BR>> >>>> >that whenever any PARIS eq is set =
to a=20
narrow band and at a low<BR>> >>> frequency,<BR>>=20
>>>> >it generates some DC offset. I've tried =
putting=20
various DC offset<BR>> >>> filters<BR>> =
>>>>=20
>before and after the EQ, but they don't seem to help.<BR>>=20
>>>> ><BR>> >>>> >If anyone out there =
is=20
skilled in DSP math and has some ideas for<BR>how<BR>> =
>to<BR>>=20
>>>> >filter this better, I would love to hear from =
you. =20
As of right now,<BR>> >I'm<BR>> >>>> >out of =
ideas on=20
how to fix this. Not that it is a huge big deal.<BR>> =
I'm<BR>>=20
>>> getting<BR>> >>>> >1% DC offset =
measurements by=20
just tweaking the settings to minimize<BR>> >the<BR>>=20
>>>> >effects.<BR>> >>>> ><BR>>=20
>>>> >Anyway, I just thought I'd check in and let =
everyone know=20
I'm not<BR>dead.<BR>> >>>> ><BR>> =
>>>>=20
>All the best,<BR>> >>>> ><BR>> =
>>>>=20
>Mike<BR>> >>>><BR>> >>><BR>>=20
>>><BR>> >><BR>> >><BR>>=20
><BR>><BR><BR></BLOCKQUOTE>
<DIV><FONT size=3D2><BR><BR>I choose Polesoft Lockspam to fight spam, =
and=20
you?<BR><A=20
href=3D"http://www.polesoft.com/refer.html">http://www.polesoft.com/refer=
..html</A> </FONT></DIV></BODY ></HTML>
------=_NextPart_000_0030_01C87304.054069B0--
|
|
|
|
| Re: DC Offset and Bass EQ [message #96110 is a reply to message #96082] |
Wed, 20 February 2008 07:30 |
Neil
Messages: 1645
Registered: April 2006
|
Senior Member |
|
|
Tom - I seem to recall trying that once, but the thing is, it's
not a constantly-replicating problem. I've even had it come &
go on the same project. So, since I can't pin it down,
just to be safe i simply don't use it for anything requiring lo
or lo-mid adjustments. Which sucks, because i like the sound of
that EQ for certain applications.
Neil
"Tom Bruhl" <arpegio@comcast.net> wrote:
>
>
>Have you guys tried using another Paris band for lows
>instead of eq band 1? #1 is particularly blatty in the
>lows. The VST was designed to model the EDS eq
>top to bottom . . . so be it.
>Tom
>
>
> "tonehouse" <zmcleod@comcast.net> wrote in message =
>news:47bb2a7f@linux...
> I agree with Neil .I am not sure exactly what triggers it,but if I cut
=
>or
> boost much low freq (100 or below)on the Paris eq,most of the time it
=
>gets a
> strange distortion,or artifact to the sound...The EQ plug that works =
>with
> multiple instances and sounds great with Paris is the PSP =
>MasterQ..hardly
> any noticible latency either. I was referring to using Wavelab as the
> mixdown,and removing DC at that stage.
> "Neil" <IOUOUI@OI.com> wrote in message news:47bae93a$1@linux...
> >
> > I don't know if this makes any difference, but i use the vst
> > version of the Paris eq, and I've noticed some weird stuff going
> > on with low freqs, too... what i hear is what i'd describe as
> > a "sputtering" sound. and you don't even need to be rolling
> > at the time, either. So, i don't use it on anything requiring
> > adjustments of lo-mids & lows.
> >
> > Neil
> >
> >
> > "Mike Audet" <mike@..> wrote:
> > >
> > >Hi Guys,
> > >
> > >I just checked, and you can use the high-pass filter in the stock =
>paris
> > eq
> > >to filter out the dc offset. It has to be after the effect. =
>Placing an
> > >eq before the crossover doesn't help. I think it's probably best =
>to use
> > >the stock eqs instead of embedding another eq in the effect if only
=
>to
> conserve
> > >DSP resources. The stock EQs use different, reserved chips, =
>whereas if
> > I
> > >embed the eq in the effect, it will take up the more scarce effect
=
>dsp.
> > >
> > >Let me know what you think, though. I can add another eq if the
> consensus
> > >is that we should go that way.
> > >
> > >All the best,
> > >
> > >Mike
> > >
> > >
> > >"Wayne Carson" <carson_wayne@msn.com> wrote:
> > >>Hi Tonehouse,
> > >>
> > >>I usually take my final mixes (Paris mixdown) and (create a stereo
=
>audio
> > >
> > >>file .wav) from the audio window and drop them into Wavelab to =
>check the
> > >DC
> > >>offset and do any gain up/down balancing with other final mixes =
>(my
> cheap
> > >
> > >>man's CD finalize tool). I generally find very little offset and
=
>some
> > none
> > >
> > >>at all during this process. Is this what you are referring to or
=
>are
> you
> > >
> > >>saying to run each individual track in Wavelab to remove any DC =
>offset
> > and
> > >
> > >>convert them back to .pafs and then begin mixing? Wouldn't this =
>be
> > >>cumbersome?
> > >>
> > >>Also, you mention that you avoiding using boost or cut on the bass
> because
> > >
> > >>of artifacts. Did you mean on the EQ trim or anywhere in the =
>graphic
> EQ?
> > >
> > >>Since many of us are XP users it can make a difference knowing =
>what you
> > >
> > >>meant since the bass is a tough instrument to EQ in the first =
>place and
> > >we
> > >>may be complicating or making it worse with EQ. I went with BT's
> > >>recommendation to crank the trim on bass . . . but he was on =
>Win98, if
> > I
> > >
> > >>recall correctly. But, Brian also stated on the DVD, that Paris =
>was a
> > bit
> > >
> > >>mushy in the low to low/mid area so maybe it's been there all =
>along.
> > >>
> > >>Concerning DC offset, Mike Audet said he encountered it with a =
>narrow
> band
> > >
> > >>EQ at a low frequency. Sounds like there might be some =
>correlation
> between
> > >
> > >>the two.
> > >>
> > >>Anyhow, I'm just happy to learn so much from this group. It helps
=
>me on
> > >
> > >>every mix I do!!! Have a great day.
> > >>
> > >>Wayne
> > >>
> > >>
> > >>
> > >>"tonehouse" <zmcleod@comcast.net> wrote in message
> news:47b9e87f@linux...
> > >>> Yes Dinitrios ,thats what I reflected in my earlier message. The
=
>EQ
> has
> > >
> > >>> been
> > >>> screwed up since the XP conversion.." low frequency =
>artifacts"..call
> > it
> > >DC
> > >>> offset if you like...DC offset is an easy thing to get rid of
> anyhow,takes
> > >>> about 10 seconds in Wavelab,,
> > >>> "Dimitrios" <musurgio@otenet.gr> wrote in message
> news:47b8d34d$1@linux...
> > >>>>
> > >>>> Hi Mike !
> > >>>> Nice you are still on boat !!!
> > >>>> We count on your findings here !
> > >>>> Regarding these quirks with eq , yes maybe these are XP =
>oriented.
> > >>>> Based on some tests I did there was at least one band on EQ =
>(the
> lowest)
> > >>>> that was acting differently under XP than under Me.
> > >>>> This was confirmed by other users.
> > >>>> Another thing that confuses me is some frequency bumps around =
>500 hz
> > >or
> > >>>> so coming from the eq especially noticable with drums when =
>mixing.
> > >>>> I may say that frequency wise Paris is not super stable and =
>always
> trying
> > >>>> to use compressors to overcome...
> > >>>> Anyone else sharing these findings ?
> > >>>> Regards,
> > >>>> Dimitrios
> > >>>>
> > >>>> "Mike Audet" <mike@..> wrote:
> > >>>> >
> > >>>> >Hi All,
> > >>>> >
> > >>>> >I've been working on a mono-band version of the multiband =
>compressor
> > >so
> > >>>> that
> > >>>> >we could use less dsp when there is just one offending band.
=
>This
> > will
> > >>>> be
> > >>>> >great for compressing just the lows or as a deesser.
> > >>>> >
> > >>>> >I've got the mono version working, and I should have the =
>stereo
> version
> > >>>> finished
> > >>>> >soon. The mono version allows 4 instances, compared to two =
>instances
> > >for
> > >>>> >the full multi band.
> > >>>> >
> > >>>> >I've been investigating the DC offset issues in the crossover.
=
> It
> > seems
> > >>>> >that whenever any PARIS eq is set to a narrow band and at a =
>low
> > >>> frequency,
> > >>>> >it generates some DC offset. I've tried putting various DC =
>offset
> > >>> filters
> > >>>> >before and after the EQ, but they don't seem to help.
> > >>>> >
> > >>>> >If anyone out there is skilled in DSP math and has some ideas
=
>for
> how
> > >to
> > >>>> >filter this better, I would love to hear from you. As of =
>right now,
> > >I'm
> > >>>> >out of ideas on how to fix this. Not that it is a huge big =
>deal.
> > I'm
> > >>> getting
> > >>>> >1% DC offset measurements by just tweaking the settings to =
>minimize
> > >the
> > >>>> >effects.
> > >>>> >
> > >>>> >Anyway, I just thought I'd check in and let everyone know I'm
=
>not
> dead.
> > >>>> >
> > >>>> >All the best,
> > >>>> >
> > >>>> >Mike
> > >>>>
> > >>>
> > >>>
> > >>
> > >>
> > >
> >
>
>
>
>
>I choose Polesoft Lockspam to fight spam, and you?
>http://www.polesoft.com/refer.html
>
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><DIV><FONT face=3DArial size=3D2>Have you guys tried using another Paris
=
>band for=20
>lows</FONT></DIV>
><DIV><FONT face=3DArial size=3D2>instead of eq band 1? #1 is =
>particularly=20
>blatty in the</FONT></DIV>
><DIV><FONT face=3DArial size=3D2>lows. The VST was designed to =
>model the EDS=20
>eq</FONT></DIV>
><DIV><FONT face=3DArial size=3D2>top to bottom . . . so be =
>it.</FONT></DIV>
><DIV><FONT face=3DArial size=3D2>Tom</FONT></DIV>
><DIV><FONT face=3DArial size=3D2></FONT> </DIV>
><DIV> </DIV>
><BLOCKQUOTE=20
>style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
>BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
> <DIV>"tonehouse" <<A=20
> href=3D"mailto:zmcleod@comcast.net">zmcleod@comcast.net</A>> wrote =
>in message=20
> <A href=3D"news:47bb2a7f@linux">news:47bb2a7f@linux</A>...</DIV>I =
>agree with=20
> Neil .I am not sure exactly what triggers it,but if I cut or<BR>boost
=
>much low=20
> freq (100 or below)on the Paris eq,most of the time it gets =
>a<BR>strange=20
> distortion,or artifact to the sound...The EQ plug that works =
>with<BR>multiple=20
> instances and sounds great with Paris is the PSP =
>MasterQ..hardly<BR>any=20
> noticible latency either. I was referring to using Wavelab as=20
> the<BR>mixdown,and removing DC at that stage.<BR>"Neil" <<A=20
> href=3D"mailto:IOUOUI@OI.com">IOUOUI@OI.com</A>> wrote in message =
><A=20
> =
>href=3D"news:47bae93a$1@linux">news:47bae93a$1@linux</A>...<BR>><BR>&g=
>t; I=20
> don't know if this makes any difference, but i use the vst<BR>> =
>version of=20
> the Paris eq, and I've noticed some weird stuff going<BR>> on with =
>low=20
> freqs, too... what i hear is what i'd describe as<BR>> a =
>"sputtering"=20
> sound. and you don't even need to be rolling<BR>> at the time, =
>either. So,=20
> i don't use it on anything requiring<BR>> adjustments of lo-mids =
>&=20
> lows.<BR>><BR>> Neil<BR>><BR>><BR>> "Mike Audet"=20
> <mike@..> wrote:<BR>> ><BR>> >Hi Guys,<BR>> =
>><BR>>=20
> >I just checked, and you can use the high-pass filter in the stock=20
> paris<BR>> eq<BR>> >to filter out the dc offset. It has =
>to be=20
> after the effect. Placing an<BR>> >eq before the crossover =
>doesn't=20
> help. I think it's probably best to use<BR>> >the stock =
>eqs=20
> instead of embedding another eq in the effect if only =
>to<BR>conserve<BR>>=20
> >DSP resources. The stock EQs use different, reserved chips, =
>whereas=20
> if<BR>> I<BR>> >embed the eq in the effect, it will take =
>up the=20
> more scarce effect dsp.<BR>> ><BR>> >Let me know what you =
>think,=20
> though. I can add another eq if the<BR>consensus<BR>> >is =
>that we=20
> should go that way.<BR>> ><BR>> >All the best,<BR>>=20
> ><BR>> >Mike<BR>> ><BR>> ><BR>> >"Wayne =
>Carson"=20
> <<A =
>href=3D"mailto:carson_wayne@msn.com">carson_wayne@msn.com</A>>=20
> wrote:<BR>> >>Hi Tonehouse,<BR>> >><BR>> =
>>>I=20
> usually take my final mixes (Paris mixdown) and (create a stereo =
>audio<BR>>=20
> ><BR>> >>file .wav) from the audio window and drop them =
>into=20
> Wavelab to check the<BR>> >DC<BR>> >>offset and do any =
>gain=20
> up/down balancing with other final mixes (my<BR>cheap<BR>> =
>><BR>>=20
> >>man's CD finalize tool). I generally find very little =
>offset and=20
> some<BR>> none<BR>> ><BR>> >>at all during this=20
> process. Is this what you are referring to or are<BR>you<BR>> =
>
> ><BR>> >>saying to run each individual track in Wavelab to =
>remove=20
> any DC offset<BR>> and<BR>> ><BR>> >>convert them =
>back to=20
> .pafs and then begin mixing? Wouldn't this be<BR>>=20
> >>cumbersome?<BR>> >><BR>> >>Also, you mention =
>that=20
> you avoiding using boost or cut on the bass<BR>because<BR>> =
>><BR>>=20
> >>of artifacts. Did you mean on the EQ trim or anywhere in =
>the=20
> graphic<BR>EQ?<BR>> ><BR>> >>Since many of us are XP =
>users it=20
> can make a difference knowing what you<BR>> ><BR>> =
>>>meant=20
> since the bass is a tough instrument to EQ in the first place =
>and<BR>>=20
> >we<BR>> >>may be complicating or making it worse with =
>EQ. I=20
> went with BT's<BR>> >>recommendation to crank the trim on =
>bass . . .=20
> but he was on Win98, if<BR>> I<BR>> ><BR>> >>recall=20
> correctly. But, Brian also stated on the DVD, that Paris was =
>a<BR>>=20
> bit<BR>> ><BR>> >>mushy in the low to low/mid area so =
>maybe=20
> it's been there all along.<BR>> >><BR>> >>Concerning =
>DC=20
> offset, Mike Audet said he encountered it with a =
>narrow<BR>band<BR>>=20
> ><BR>> >>EQ at a low frequency. Sounds like there =
>might be=20
> some correlation<BR>between<BR>> ><BR>> >>the =
>two.<BR>>=20
> >><BR>> >>Anyhow, I'm just happy to learn so much from =
>this=20
> group. It helps me on<BR>> ><BR>> >>every mix I=20
> do!!! Have a great day.<BR>> >><BR>> =
>>>Wayne<BR>>=20
> >><BR>> >><BR>> >><BR>> >>"tonehouse" =
><<A=20
> href=3D"mailto:zmcleod@comcast.net">zmcleod@comcast.net</A>> wrote =
>in=20
> message<BR><A =
>href=3D"news:47b9e87f@linux">news:47b9e87f@linux</A>...<BR>>=20
> >>> Yes Dinitrios ,thats what I reflected in my earlier =
>message. The=20
> EQ<BR>has<BR>> ><BR>> >>> been<BR>> >>> =
>screwed=20
> up since the XP conversion.." low frequency artifacts"..call<BR>>=20
> it<BR>> >DC<BR>> >>> offset if you like...DC offset =
>is an=20
> easy thing to get rid of<BR>anyhow,takes<BR>> >>> about 10 =
>seconds=20
> in Wavelab,,<BR>> >>> "Dimitrios" <<A=20
> href=3D"mailto:musurgio@otenet.gr">musurgio@otenet.gr</A>> wrote in =
>
> message<BR><A=20
> href=3D"news:47b8d34d$1@linux">news:47b8d34d$1@linux</A>...<BR>>=20
> >>>><BR>> >>>> Hi Mike !<BR>> =
>>>>>=20
> Nice you are still on boat !!!<BR>> >>>> We count on =
>your=20
> findings here !<BR>> >>>> Regarding these quirks with =
>eq , yes=20
> maybe these are XP oriented.<BR>> >>>> Based on some =
>tests I=20
> did there was at least one band on EQ (the<BR>lowest)<BR>> =
>>>>>=20
> that was acting differently under XP than under Me.<BR>> =
>>>>>=20
> This was confirmed by other users.<BR>> >>>> Another =
>thing that=20
> confuses me is some frequency bumps around 500 hz<BR>> =
>>or<BR>>=20
> >>>> so coming from the eq especially noticable with drums =
>when=20
> mixing.<BR>> >>>> I may say that frequency wise Paris =
>is not=20
> super stable and always<BR>trying<BR>> >>>> to use =
>compressors=20
> to overcome...<BR>> >>>> Anyone else sharing these =
>findings=20
> ?<BR>> >>>> Regards,<BR>> >>>> =
>Dimitrios<BR>>=20
> >>>><BR>> >>>> "Mike Audet" <mike@..> =
>
> wrote:<BR>> >>>> ><BR>> >>>> >Hi=20
> All,<BR>> >>>> ><BR>> >>>> >I've =
>been=20
> working on a mono-band version of the multiband compressor<BR>>=20
> >so<BR>> >>>> that<BR>> >>>> >we =
>could use=20
> less dsp when there is just one offending band. This<BR>>=20
> will<BR>> >>>> be<BR>> >>>> >great =
>for=20
> compressing just the lows or as a deesser.<BR>> >>>>=20
> ><BR>> >>>> >I've got the mono version working, =
>and I=20
> should have the stereo<BR>version<BR>> >>>> =
>finished<BR>>=20
> >>>> >soon. The mono version allows 4 instances, =
>compared to=20
> two instances<BR>> >for<BR>> >>>> >the full =
>multi=20
> band.<BR>> >>>> ><BR>> >>>> >I've =
>been=20
> investigating the DC offset issues in the crossover. It<BR>>=20
> seems<BR>> >>>> >that whenever any PARIS eq is set =
>to a=20
> narrow band and at a low<BR>> >>> frequency,<BR>>=20
> >>>> >it generates some DC offset. I've tried =
>putting=20
> various DC offset<BR>> >>> filters<BR>> =
>>>>>=20
> >before and after the EQ, but they don't seem to help.<BR>>=20
> >>>> ><BR>> >>>> >If anyone out there =
>is=20
> skilled in DSP math and has some ideas for<BR>how<BR>> =
>>to<BR>>=20
> >>>> >filter this better, I would love to hear from =
>you. =20
> As of right now,<BR>> >I'm<BR>> >>>> >out of =
>ideas on=20
> how to fix this. Not that it is a huge big deal.<BR>> =
>I'm<BR>>=20
> >>> getting<BR>> >>>> >1% DC offset =
>measurements by=20
> just tweaking the settings to minimize<BR>> >the<BR>>=20
> >>>> >effects.<BR>> >>>> ><BR>>=20
> >>>> >Anyway, I just thought I'd check in and let =
>everyone know=20
> I'm not<BR>dead.<BR>> >>>> ><BR>> =
>>>>>=20
> >All the best,<BR>> >>>> ><BR>> =
>>>>>=20
> >Mike<BR>> >>>><BR>> >>><BR>>=20
> >>><BR>> >><BR>> >><BR>>=20
>><BR>><BR><BR></BLOCKQUOTE>
><DIV><FONT size=3D2><BR><BR>I choose Polesoft Lockspam to fight spam, =
>and=20
>you?<BR><A=20
>href=3D"http://www.polesoft.com/refer.html">http://www.polesoft.com/refer=
>.html</A> </FONT></DIV></BODY></HTML>
>
>
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