Studio Technologies 780-03 V.4.15 - Manual (Page 51)

Model 780-03/790 User Guide Issue 1, April 2015
Studio Technologies, Inc. Page 51
for Surround
The following provides a summary of the action performed when the downmix modes are
active. Signals at unity gain unless noted. 0.707 = –3 dB; 0.5 = –6 dB; 0 = full attenuation.
To 5.1
SL = SL + BL
SR = SR + BR
BL and BR mute
To Stereo
L = L + 0.707C + 0.707SL + 0.707BL + (0 or 0.5)LFE
R = R + 0.707C + 0.707SR + 0.707BR + (0 or 0.5)LFE
C, LFE, SL, SR, BL, and BR mute
To Mono
For Surround Input A, Surround Input B
C = .707L + .707R + C + 0.5SL + 0.5SR + 0.5BL + 0.5BR + (0 or 0.5)LFE
L, R, LFE, SL, SR, BL, and BR mute
For Stereo Input
C = 0.707L + 0.707R
L and R mute (LFE, SL, SR, BL, and BR already muted)
Appendix C—Downmix Formulas