Tascam Professional Digital Surround Monitor Controller DS-M7. 1 Owners Manual

  TASCAM DS-M7.1 21
5 – Using the DS-M7.1
Once you have set up the connections, assigned the 
inputs and outputs, and followed the procedures in 
the Setup Guide, you can start using your DS-M7.1.
Return or bus? Use the RTN/BUS key to select 
between return inputs (the signal coming in from the 
mastering recorder)—the key lights in this mode—
and bus inputs (from the console).
Surround or stereo? Select either the surround 
or the stereo program source (from the analog TRS 
monitor inputs) using the...

5 – Using the DS-M7.1
22 TASCAM DS-M7.1
The parameter to the left on the second line allows 
you to choose between the two types: 
TYPE1 and 
TYPE2.
L
R C
LFELS
RS
RC
LC
-15 / 0 dB
(-15dB default)
L
R C
SWLS
RS
RC
LC
HPF
LPF
HPF
HPF
HPF
HPF
-5/ +10 dB
(-5dB default)
80/100/120 Hz
48dB/oct
L
R C
LFELS
RS
RC
LC
-15  dB
L
R C
SWLS
RS
RC
LC
LPF
HPF
HPF
-5  dB
80/100/120 Hz
48dB/oct
HPF
-12.0 dB
-1.5 dB
-1.5 dB -12.0 dB
LPF
SUB
(default OFF)
Type 1
Type 2 

5 – Using the DS-M7.1
  TASCAM DS-M7.1 23
Type 1 bass management
When type 1 bass management is selected, the screen 
looks something like this:
FRQ The frequency at which the crossover occurs: 
80, 100 or 120 (Hz).
MCH>LFE The amount of main channel signal (L, 
C, R, LS, RS) added to the LFE monitor channel. This is set together with the LFE>LFE parameter as 
described below.
LFE>LFE The amount of LFE signal added to the 
LFE monitor channel. This is set together with the 
MCH>LFE parameter described...

24  TASCAM DS-M7.1 
6 – Note on DS-M7.1 usage
Many pre-mixes for film are made that are greater 
than 8 tracks.  The DS-M7.1 can still be useful in 
these conditions, as explained here.
If a large format (24 or more output busses) console 
is used, a number (8 or 16) of the busses can be used 
to feed the stem recorder.The returns from the stem recorder can then be fed 
back through the console inputs and routed to a dif-
ferent set of eight busses, which are then used to feed 
the DS-M7.1 for...

  TASCAM DS-M7.1 25
7 – Downmixing
Downmixing, as explained earlier, is the process of 
folding a surround mix into a format using fewer 
channels. This is done for the purpose of checking 
compatibility.
Downmixing is enabled and disabled on the DS-
M7.1 using the 
DOWN MIX/MONO key under the 
SPL readout and control. When downmixing is 
active, the key is lit (it flashes in mono downmix 
mode, see below).
The settings for downmix are made using the 
DOWNMIX function key.
1Press the 
DOWNMIX function...

7 – Downmixing
26 TASCAM DS-M7.1
7.1 formats
L
R
C
LFE
LS
RS
LC
RC
L
R
C
LFE
LS
RS
LC
RC
-4.5/-6/-7.5/-9dB
-1.5
/-3/-4.5/-6dB
mute
mute
L
R
C
LFE
LS
RS
LC
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
-3/-4.5/-6dB
-0/
-3/-6/
-1.5/-3/-4.5/-6dB
-3/-6/-9/dB
-3dB
L
R
C
LFE
LS
RS
LC
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
-3/-4.5/-6dB
-3dB
-0/-3/-6/
-1.5/-3/-4.5/-6dB
-3/-6/-9/dB
-3dB
7.1 > 5.1 7.1 > LR
7.1 > mono 

7 – Downmixing
  TASCAM DS-M7.1 27
7.1 > 5.1 In the 7.1 to 5.1 downmix, the attenuation 
values are:
7.1 > LR In the 7.1 to LR (stereo) downmix, the 
attenuation values are:
7.1 > mono In the 7.1 to mono downmix, the 
attenuation values are:
Source > Target Values in dB (default underscored)
LC>L, RC>R -1.5, –3, –4.5, –6
LC+RC > C –4.5
, –6, –7.5, –9
Source > Target Values in dB (default underscored)
C > L,R –3, –4.5, –6
LFE>L,R –3, –6, –9, –
∞
LS,RS>L,R 0, –3, –6, –∞
LC+RC+c>L,R –1.5, –3, –4.5, –6...

7 – Downmixing
28 TASCAM DS-M7.1
6.1 format
L
R
C
LFE
LS
RS
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
-3/-4.5/-6dB
L
R
C
LFE
LS
RS
CS
(LC)
RC
L
R
C
LFE
LS
RS
LC
RC
-3/-4.5/-6dBmute
muteCS
(LC)-3/-6/-9/
-0/-3/-6/B
-3/-6/-9/dB
L
R
C
LFE
LS
RS
CS
(LC)
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
-3/-4.5/-6dB
-3dB
-0/-3/-6/
-3/-6/-9/dB
-3/-6
/-9/
6.1 > 5.1 6.1 > LR
6.1 > mono 

7 – Downmixing
  TASCAM DS-M7.1 29
6.1 > 5.1 In the 5.1 to 5.1 downmix, the attenuation 
values are:
6.1 > LR In the 6.1 to LR (stereo) downmix, the 
attenuation values are:
6.1 > mono In the 6.1 to mono downmix, the 
attenuation values are:
Source > Target Values in dB (default underscored)
CS (LC)>LS,RS -3, –4.5, –6
Source > Target Values in dB (default underscored)
C > L,R –3, –4.5, –6
LFE>L,R –3, –6, –9, –
∞
LS,RS>L,R 0, –3, –6, –∞
CS (LC)>L,R –3, –6, –9, –∞
Source > Target Values in dB (default...

7 – Downmixing
30 TASCAM DS-M7.1
5.1 format
L
R
C
LFE
LS
RS
LC
RC
L
R
C
LFE
LS
RS
LC
RC
L
R
C
LFE
LS
RS
LC
RCL
R
C
LFE
LS
RS
LC
RC
-3dB
-3/-4.5/-6dB
mute
mute
mute
mute
mute
mute -3/-6/-9/
dB-3/-6/-9/dB
L
R
C
LFE
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/
L
R
C
LFE
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
-3/-6/-9/dB-3/-6/-9/dB
5.1 > LCRS 5.1 > 4.1
5.1 > LR 5.1 > mono