Tascam DS-M7.1 - Manual (Page 33)

7 – Downmixing
TASCAM DS-M7.1
33
LR format
LR > mono In the LR to mono downmix, there are
no parameters (changeable attenuation values)
-3dB
L
R
C
LFE
LS
RS
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
LC
LR to mono