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Re: Surround Sound the easy way

Subject: Re: Surround Sound the easy way
From: "thorley_tom" <>
Date: Sat, 17 Jan 2004 02:00:09 -0000
Hi Bernie,

> Sure. The main problem is obtaining surround signal without losing 
> the stereo stereo perspective in the front speakers. So creating the 
> rear signal component is a delicate issue. Basically, we take some of 
> the signal from the two front tracks and mix it into what we call the 
> SurroundPlus matrix, all the time monitoring the surround levels 
> coming from the rear speakers. When we get a mix that creates a 
> realistic illusion, we re-combine the two signals as encoded surround 
> data and complete the mix. The signal can then be read by pretty much 
> all surround decoders...at least, so far as we know.

When I have mixed in surround I have often used M/S recordings and my 
standard practise would be to mix the original recording into AB stereo bung 
this in the rears  then spread the M/S signal across the front bringing up the 
centre image in level relative to the rears. Having done this I set the rears 
3dB quieter overall. This is my default approach and then I tweak from there. 
The final mix does then of course then get dolby encoded.

What are the differences between my approach and your processor? 
What do you mean by "Some" of the signal?
What is the SurroundPlus matrix?

>we re-combine the two signals as encoded surround

Is this signal encoded as LCRS or 5.1?

Has anyone got any different ways of deriving a surround atmosphere from 
M/S?


Tom




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