Grass Valley Maestro Master Control v.1.7 - Manual (Page 139)

Maestro Channel Branding User Guide 135
3rd Step: Audio Sets
Stereo Sources
The following examples show different approaches for up-mixing stereo
sources to surround outputs as well as showing a down-mix of stereo-to-
mono.
The choices are:
• Stereo-to-stereo (1:1 mapping)
• Stereo-to-surround (up-mixing two different ways)
• Stereo-to-mono (down-mixing)
Figure 107 shows the traditional mapping of the left and right channels to
the left front and right front output channels. This method is preferred by
some users.
Figure 107. Stereo to Left and Right Front Surround Up Mix
However some customers report that their listeners prefer to always have
something in the center channel. In
Figure 108 , a center channel is created
by mixing the left and right signals together. The gain values are adjusted
lower in this case to present a consistent sound level.
Figure 108. Stereo to Left Front, Right Front and Center Surround Up Mix