Re: [LAU] M/S processing w/o 'convenient' plugins

On 05/14/2016 05:35 PM, Paul Davis wrote:
>
>
> On Sat, May 14, 2016 at 4:57 AM, Fons Adriaensen <fons@email-addr-hidden
> <mailto:fons@email-addr-hidden>> wrote:
>
>
> It only makes sense if you use different EQ on M and S (otherwise
> there's no point to convert to M/S in the first place). That's a
> case not covered by Ardour's strip structure, unless you have
> a stereo EQ plugin that has separate controls for the two channels.
> If not, you need to build the required path using additional mono
> bus strips.
>
>
> Not true in nightly builds.

And with older versions of Ardour:

1. you have a stereo track already. disconnect it from the master.
2. create a mono "M" bus-
3. create a stereo "S" bus (yes, see below).
4. route both outs of the stereo track to "M".
5. route the L out of the stereo track to the first input of "S".
6. route the R out of the stereo track to the second input of "S".
7. invert the polarity of the second input of "S".
8. now add your desired processing (usually EQ) to M and S (use mono
plugins for S despite the bus being stereo).
9. set the M panner to center.
10. set the S panner to center and maximum width.
11. set the M and S faders to -6dB to begin with, adjust S level to taste.

But: M/S processing is really only useful when you are remastering a
stereo mix without access to the individual components, or maybe if you
are dealing with stereo mic recordings as part of a larger mix.
If you are creating a multitrack mix from individual channels, M/S buys
you exactly nothing that couldn't be done better and more precisely in
the individual channels.

-- 
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT
http://stackingdwarves.net
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