Re: [LAU] M/S EQ in Linux

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To: Brent Busby <brent@...>
Cc: Linux Audio User <linux-audio-user@...>
Date: Tuesday, September 10, 2013 - 9:43 pm

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On Mon, Sep 9, 2013 at 5:04 PM, J. Liles wrote:

>

BTW upon further review, I think the Multiband EQ from SWH LADSPA plugin
suite is linear phase--you'd only have to watch out for the latency it
introduces (which wouldn't be a problem if you used an instance each for M
and S).

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On Mon, Sep 9, 2013 at 5:04 PM, J. Liles <malnourite@gmail.com<=
/a>> wrote:
On Mon, Sep 9, 201=
3 at 3:42 PM, Brent Busby <
brent@village.keycorner.org> wrote:

I've been looking for a way to try mid/s=
ide EQ in Linux. =C2=A0The
documentation for the Calf plugins implies they can
(http://calf.sourceforge.net/plugins.html#filter), but never says ho=
w.
Also, I don't see anything in the GUI that would allow you to toggle mi=
d
versus side versus whole mix.

Are mid/side EQ tricks possible with the Calf plugins, or any other way
on Linux?
There is a LADSPA plugi=
n to convert Stereo to M/S. Then you just run different EQ settings on each=
of the outputs before later combining them (this is trivial to setup in No=
n Mixer). However, watch out for using EQs with different internal latencie=
s. Also, I would expect to end up with phase isues if not using a linear-ph=
ase EQ (the only one of which I am aware is the one in Jamin). But from wha=
t you're aiming to do in the first place, I imagine you don't reall=
y care that much about correctness.

BTW upon further re=
view, I think the Multiband EQ from SWH LADSPA plugin suite is linear phase=
--you'd only have to watch out for the latency it introduces (which wou=
ldn't be a problem if you used an instance each for M and S).

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Messages in current thread:
[LAU] M/S EQ in Linux, Brent Busby, (Mon Sep 9, 10:42 pm)
Re: [LAU] M/S EQ in Linux, Jörn Nettingsmeier, (Tue Sep 10, 10:15 am)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Tue Sep 10, 7:30 am)
Re: [LAU] M/S EQ in Linux, Fons Adriaensen, (Tue Sep 10, 9:38 pm)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Tue Sep 10, 11:47 pm)
Re: [LAU] M/S EQ in Linux, Brent Busby, (Wed Sep 11, 3:59 am)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Wed Sep 11, 3:54 pm)
Re: [LAU] M/S EQ in Linux, Brent Busby, (Wed Sep 11, 6:27 pm)
Re: [LAU] M/S EQ in Linux, Fons Adriaensen, (Wed Sep 11, 7:50 pm)
Re: [LAU] M/S EQ in Linux, Brent Busby, (Wed Sep 11, 8:07 pm)
Re: [LAU] M/S EQ in Linux, Ricardus Vincente, (Wed Sep 11, 9:02 pm)
Re: [LAU] M/S EQ in Linux, Fons Adriaensen, (Wed Sep 11, 9:06 pm)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Wed Sep 11, 10:00 pm)
Re: [LAU] M/S EQ in Linux, Bob van der Poel, (Fri Sep 13, 3:15 am)
Re: [LAU] M/S EQ in Linux, Gene Heskett, (Fri Sep 13, 2:05 pm)
Re: [LAU] M/S EQ in Linux, Gordon JC Pearce, (Sat Sep 14, 8:17 am)
Re: [LAU] M/S EQ in Linux, david, (Sun Sep 15, 7:11 am)
[LAU] Landlines, was Re: M/S EQ in Linux, Gordon JC Pearce, (Sun Sep 15, 10:12 am)
Re: [LAU] Landlines, was Re: M/S EQ in Linux, Simon Wise, (Mon Sep 16, 6:57 am)
Re: [LAU] Landlines, was Re: M/S EQ in Linux, Will Godfrey, (Sun Sep 15, 2:00 pm)
Re: [LAU] Landlines, was Re: M/S EQ in Linux, Fons Adriaensen, (Sun Sep 15, 10:55 am)
Re: [LAU] Landlines, was Re: M/S EQ in Linux, Joe Hartley, (Sun Sep 15, 2:45 pm)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Fri Sep 13, 6:36 am)
Re: [LAU] M/S EQ in Linux, david, (Fri Sep 13, 6:49 am)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Fri Sep 13, 7:42 am)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Fri Sep 13, 7:48 am)
Re: [LAU] M/S EQ in Linux, Al Thompson, (Fri Sep 13, 3:34 am)
Re: [LAU] M/S EQ in Linux, Ricardus Vincente, (Wed Sep 11, 9:21 pm)
Re: [LAU] M/S EQ in Linux, Brent Busby, (Wed Sep 11, 9:26 pm)
Re: [LAU] M/S EQ in Linux, Fons Adriaensen, (Wed Sep 11, 8:59 pm)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Wed Sep 11, 7:16 pm)
Re: [LAU] M/S EQ in Linux, david, (Wed Sep 11, 6:26 pm)
Re: [LAU] M/S EQ in Linux, J. Liles, (Wed Sep 11, 7:31 am)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Wed Sep 11, 4:00 pm)
Re: [LAU] M/S EQ in Linux, Ralf Mardorf, (Tue Sep 10, 8:09 am)
Re: [LAU] M/S EQ in Linux, J. Liles, (Tue Sep 10, 12:04 am)
Re: [LAU] M/S EQ in Linux, J. Liles, (Tue Sep 10, 9:43 pm)
Re: [LAU] M/S EQ in Linux, Fons Adriaensen, (Tue Sep 10, 10:21 pm)
Re: [LAU] M/S EQ in Linux, Joe Hartley, (Mon Sep 9, 10:51 pm)
Re: [LAU] M/S EQ in Linux, Kevin Cosgrove, (Mon Sep 9, 11:04 pm)
Re: [LAU] M/S EQ in Linux, Joe Hartley, (Mon Sep 9, 11:08 pm)