Multiple ADAT-XT Operation: Chapter 5
ADAT XT Reference Manual 59
RECORDING DIGITAL AUDIOBOUNCING TRACKS BETWEEN ADATS
Tracks can be bounced between machines in a multiple ADAT system by using the
digital bus. The digital bus is connected in much the same way as the sync cables,
and should be done in the same order. Refer to the section entitled
Digital In/Out
on
page 27 in chapter 3 for more information on connecting the digital bus. It is also
possible to bounce tracks within a single XT
without
the need for connecting the
digital bus. See page 38 in chapter 4 for more information.
If the [DIGITAL INPUT] button is pressed, the XT will record from the [DIGITAL IN]
connector, and the analog inputs will be ignored (both balanced and unbalanced).
Alesis’ proprietary multi-channel digital bus carries the 8 tracks of a source XT or
ADAT. These 8 channels are routed in a one-to-one relationship to the 8 tracks of the
target XT which can record the digital audio.
Note that to create an
exact
(sample-accurate) digital copy from a master to a slave,
both
master and slave machines must have their [DIGITAL INPUT] button’s enabled.
This is necessary so that the master knows you are making a digital copy and will
offset its digital output so that it matches that of the slave machine.
J
If
[DIGITAL INPUT]
is selected and there is no optical input, the
DIGITAL
icon
(located in the
INPUT
icon group) will flash.
When bouncing audio from a master XT to a slave XT, the slave does not need to
have its Clock set to DIG since it is already getting accurate clock information from
the master, so it is sample-locked to the digital audio it is recording.
REASSIGNING CHANNELS TO DIFFERENT TRACKS
It is possible to reroute the channel/track assignments so that any incoming channel of
digital audio can be recorded onto any track, or multiple tracks. This is done by first
holding the [DIGITAL INPUT] button and pressing any of the RECORD ENABLE
buttons [1] – [8] to select which source channels you wish to record (while holding the
[DIGITAL INPUT] button, the blue INPUT LEDs will light to indicate the selected
source channels; by default, all eight INPUT LEDs will be lit). Then, after releasing the
[DIGITAL INPUT] button, use the RECORD ENABLE buttons to select the tracks you
wish to record the source channels onto (the INPUT LEDs return to their normal
status).
• The selected source channels are re-routed to the record-enabled destination
tracks, in ascending order.
Example:
If source channels 1 and 5 are selected and
tracks 3 and 4 are record enabled, then incoming audio on channel 1 will be
routed to track 3 and incoming audio on channel 5 will be routed to track 4.
• If more destination tracks are selected than source tracks, the source tracks will
repeat (cycle).
Example:
If tracks 7 and 8 were added to the destination tracks of
the previous example, then incoming track 1 would be routed to tracks 3 and 7
and incoming track 5 would be routed to tracks 4 and 8. This scheme allows for
copying a single incoming channel to multiple tracks.
• If all 8 channels are selected as source tracks, no digital routing will occur as this
gives a one-to-one relationship (and is the power-on default). If no source
channels are selected, then digital silence will be input to any record-enabled
tracks.