6 - Surround modes—Monitoring issues
6–2
This facility allows the selection of a fader pattern
that suits an individual way of working.
6.2 Monitoring issues
The main issue that affects surround mixing is that of
monitoring.
Because the TM-D4000 uses the buss outputs as the
sources for the surround mix, and these busses are
output in parallel to all the interface cards fitted in the
expansion slots, it is possible to use an IF-DA4000
analog interface card in one slot, and an appropriate
digital format (TDIF-1, AES3-1992 or ADAT) card
in another slot. The multitrack output to the digital
mastering recorder is therefore also output to the ana-
log buss outputs, which are connected to the monitor-
ing amplifiers.
However, this approach uses two of the three inter-
face slots available, and on a non-cascaded setup, this
will probably not provide enough inputs for the mix-
ing of digital material.
One solution is to use the TASCAM IF-DA8 (pro-
vided the mix is to be made to a TDIF-1-compatible
unit). The “pass-through” of the digital audio,
together with the conversion of these signals, make
this an attractive option.
It is also possible to use the on-board D/A convertors
of the multitrack unit, with suitable source/tape mon-
itor switching, to drive the monitoring system. This
option requires no additional convertors, and may
prove to be the most convenient option under some
circumstances.
6.3 Buss delay
The
DELAY
screen (accessed through the
SHIFT
ed
OPTION
key
[5]
) can be used in surround mode to set
the delay of the busses relative to each other.
Use the POD controls to set the delay, which can be
used to compensate for delay caused by speaker
placement, etc. The right switch of the top two POD
rows can be used to turn the delay on and off. the left
switch of these PODs is used to change the digit that
is adjusted using the POD knobs.
POD 1 in the last row is used to change and set the
delay value for all busses simultaneously. Change the
value with the pod knob and press the right switch to
set the value.
POD 4 of the last row changes the delay time units
between samples and milliseconds.
6.4 Modules in the surround mix
Since the busses are being used for the surround
matrix channels, modules cannot be assigned to them
in the usual way, and the buss keys for busses 5&6
and 7&8 are disabled.
However, modules can always be assigned to the ste-
reo output buss.
6.4.1 Assigning modules
When a surround mode has been selected, the
ASSIGN
screen changes so that the buss assign-
3+1
1
1
3
2
—
4
—
—
2
1
2
3
—
4
—
—
3
1
4
2
—
3
—
—
5.1
1
1
3
5
2
—
4
6
2
1
3
2
5
—
6
4
3
1
2
3
4
—
5
6
4
1
5
2
3
—
4
6
5
1
2
3
5
—
4
6
Surr
ound mode
Buss Assign
T
ype
Output buss used for:
Fr
ont Left
Fr
ont Center
Fr
ont Right
Rear Left
Rear Center
Rear Right
Sub
