7 – Downmixing
32 TASCAM DS-M7.1
LCRS format
As mentioned earlier, there are two LCRS configura-
tions. The first is the LCRS (LS, RS) configuration,
This allows a control room set up for 5.1 or 6.1 to use
an LCRS configuraiton without repatching the speak-
ers. This is possible, since the Ls and Rs speakers are
assigned the same signal, thereby creating a “phan-
tom” Cs speaker.
The second is the LCRS (CS) configuration, where
the LS(S) signal is assigned to the CS speaker of a
6.1 configuration.
Both configurations use the same downmix settings,
as shown here.
LCRS > LR In the LCRS to LR (stereo) downmix,
the attenuation values are:
LCRS > mono In the LCRS to mono downmix, the
attenuation values are:
L
R
C
LFE
S
(LS)
RS
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
-3/-4.5/-6dB
LC
-0/-3/-6/
-3dB
L
R
C
LFE
S
(LS)
RS
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
-3/-4.5/
-6dB
LC
-0/-3/-6/
LCRS > LR LCRS > mono
Source > Target Values in dB (default underscored)
C >L,R –3, –4.5, –6
S(LS)>L,R 0, –3
, –6, –
∞
Source > Target Values in dB (default underscored)
C >L+R –3, –4.5, –6
S(LS)>L+R 0, –3
, –6, –
∞
