MOTU 896 User's Guide download pdf (Page 29)

INSTALLING THE 896MK3 HARDWARE

SYNCING S/PDIF DEVICES

S/PDIF devices will sync to the 896mk3 in one of

two ways:

■ Via the S/PDIF connection itself

■ Via word clock

S/PDIF devices with no word clock

If your S/PDIF device has no word clock sync

connectors, just connect it to the 896mk3 via the

S/PDIF connectors. When the device records

S/PDIF audio (from the 896mk3), it will simply

synchronize to the clock provided by the audio

input.

On the other hand, when you transfer audio from

the S/PDIF device into the 896mk3, you’ll have to

slave the 896mk3 to its S/PDIF input. If you have

other digital audio devices connected to the

896mk3, and they are not slaved directly to the

896mk3 itself, you may hear clicks and pops

resulting from their unsynchronized audio clock. If

so, just turn them off during the transfer.

S/PDIF devices with word clock

If your S/PDIF device has a Word Clock input, slave

the S/PDIF device to the 896mk3 via their word

clock connection. You can then freely transfer

audio between the 896mk3 and the S/PDIF device.

S/PDIF

DAT deck

or other S/PDIF device

896mk3

Clock Source setting =

Internal (when transferring from the

896mk3 to the S/PDIF device)

Figure 4-11: Two setups for synchronizing a S/PDIF device with the 896mk3. In the top diagram, sync is achieved via the S/PDIF connection itself.

In this case, you have to choose S/PDIF as the 896mk3’s clock source when recording from the S/PDIF device. If you don’t want to have to worry

about switching the Clock Source setting depending on the direction of the S/PDIF transfer, you can slave the S/PDIF device to word clock from

the 896mk3 or vice versa (not shown). The Word Clock connection maintains sync, regardless of the direction of the transfer.

896mk3

Clock Source setting =

S/PDIF (when transferring from

the S/PDIF device to the 896mk3)

SPDIF

DAT deck

or other SPDIF device

896mk3

Word Clock Out

Word Clock In

896mk3

Clock Source setting = Internal

With this setup, in the MOTU Audio Setup window, choose Internal, or any other

clock source setting except SPDIF. The DAT deck (or other SPDIF device) slaves to the

896mk3 via word clock for SPDIF transfers in both directions.

896mk3 Hybrid book Page 29 Friday, August 19, 2011 1:44 PM

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MOTU 896 User's Guide Page 29

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