Alesis ADAT Spécifications télécharger pdf (Page 24)

Operation

Selecting the ADAT Optical Clock Source

Clock source selection in the ADAT Optical section is similar to that in

the AES/EBU section. Use the CLOCK SOURCE SELECT button to

toggle between Optical and Word Clock inputs.

As above, the CLOCK SOURCE LEDs show which source is active, and

flash if no valid clock is present. The SAMPLE RATE LEDs light solid

to indicate the nominal sample rate. If the incoming sample rate deviates

from the nominal by more than 2%, the LED indicating the closest

matching nominal sample rate will flash.

If the Optical source is in a 96kHz sample split format—but doesn't

fully comply with the Alesis spec by setting the appropriate user bit—you

can "force" the AI4 to interpret it as 96kHz instead of 48kHz (or

88.2kHz instead of 44.1kHz) by pressing and holding the ADAT

OPTICAL to AES/EBU CLOCK SOURCE SELECT button.

f you’re using a word clock generator to

provide a stable master clock to all of your

digital gear, you should select WORD

CLOCK as the master clock, both for the

AES/EBU and the ADAT Optical connections.

See page 17 for more.

ADAT Optical Signal Flow and

the AI4

The AI4 can interface with one ADAT Optical

device at a time. You cannot daisy-chain

ADAT Optical-equipped devices connected to

the AI4

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Alesis ADAT Spécifications Page 24