Yamaha O2R Manual Do Utilizador

Groups and Pairs

Adjacent MIC/LINE or TAPE channels configured as a stereo pair can be 
used to decode signals derived using MS microphone techniques. MS 
signals are controlled using the channel faders and pan controls. Other 
channel controls work as normal.

Shown below is the PAIR 1/2 page—Pair.

When the MS function is turned on, channels are configured as a stereo 
pair, although unlike regular pair mode the faders work independently. 
When the stereo pair is cancelled, the MS function is turned off.

Channels configured in MS mode have to be stored as two individual 
channel programs, with the odd/M channel as one program, and the 
even/S channel as another. When you recall these programs, make sure 
that the destination channels are not already configured as a stereo pair. If 
they are the channel faders will be set the same.

The width of sound can be controlled by adjusting the S level.

The following table shows how the MS signals work with the channel 
controls.

Bus send levels are as follows:
L = ML + SL
R = MR – SR (pan coefficient of the right side of S is inverted)

M (odd-numbered channel)

M level

ML and MR balance 
(in the direction of M)

S (even-numbered channel)

S level

SL and SR balance