Alesis ADAT-XT Recording Digital Audio, Bouncing Tracks Between Adats, Making Digital Backups

Multiple ADAT-XT Operation: Chapter 5

RECORDING DIGITAL AUDIO

BOUNCING 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.

MAKING DIGITAL BACKUPS

ADAT XT Reference Manual 59