2 – Using the card : DOWNMIX option
TASCAM IF-SM/DM Owner’s Manual
11
5.1 > mono
In the 5.1 to mono downmix,
the attenuation values are:
Table 2.14: 5.1 to mono downmix pattern
LRCS format
A control room set up for 5.1 can be set up to
use an LRCS configuration without repatch-
ing the speakers. This is possible, since the LS
and RS speakers are assigned the same signal,
thereby creating a “phantom” CS speaker
(attenuated by 3dB).
The default is the LRCS rear hard speaker
configuration, where the LS(S) signal is
assigned to the CS speaker of a 6.1 configura-
tion (not shown above).
LRCS > stereo
In the LRCS to stereo
downmix, the attenuation values are:
Table 2.15: LRCS to stereo downmix pattern
Source >
Target
Values in dB (default
underscored)
C > L+R
0, –1.5, –3, –4.5, –6
LFE>L+R
–3, –6, –9, –
∞
LS,RS>L+R
0, –3, –6, –
∞
L > L
summed and attenuated (–3)
R > R
L
R
C
LFE
LS
RS
LC
RC
L
R
C
LFE
LS
RS
LC
RC
–3
mute
mute
mute
mute
mute
mute
–3
–3
–3
–inf
–3, –6, –9, –inf
0, –3, –6, –inf
0, –1.5, –3, –4.5, –6
Source >
Target
Values in dB (default
underscored)
C >L,R
0, –1.5, –3, –4.5, –6
S(LS)>L,R
0, –3, –6, –
∞
L
R
C
LFE
S (LS)
RS
LC
RC
L
R
C
LFE
LS
RS
LC
RC
–3
–3
0, –1.5, –3, –4.5, –6
0, –3, –6, –inf
