Syncing S/Pdif And Aes/Ebu Devices - MOTU Traveler User Manual

SYNCING S/PDIF AND AES/EBU DEVICES

DAT decks and other devices with S/PDIF and/or
AES/EBU digital I/O will sync to the Traveler in
one of two ways:
Via the S/PDIF or AES/EBU connection itself
■
Via word clock
■
Devices with no word clock
If your S/PDIF or AES/EBU device has no word
clock sync connectors, just connect it to the
Traveler via the S/PDIF or AES/EBU connectors.
When the device records a digital audio signal
(from the Traveler), it will simply synchronize to
the clock provided by the digital audio input.
Traveler
S/PDIF or AES/EBU
S/PDIF or AES/EBU
S/PDIF or AES/EBU
device
Figure 3-19: Two setups for synchronizing an S/PDIF device with the Traveler. In the top diagram, sync is achieved via the digital I/O connection
itself. In this case, you have to choose S/PDIF or AES/EBU as the Traveler's clock source when recording from the other device. If you don't want to
have to worry about switching the Clock Source setting depending on the direction of the digital transfer, you can slave the other device to word
clock from the Traveler or vice versa (not shown). The Word Clock connection maintains sync, regardless of the direction of the transfer.
I N S T A L L I N G T H E T R A V E L E R H A R D W A R E
On the other hand, when you transfer audio from
the S/PDIF or AES/EBU device into the Traveler,
you'll have to slave the Traveler to its S/PDIF or
AES/EBU input. If you have other digital audio
devices connected to the Traveler, and they are not
slaved directly to the Traveler itself, you may hear
clicks and pops resulting from their unsynchro-
nized audio clock. If so, just turn them off during
the transfer.
Devices with word clock
If your S/PDIF or AES/EBU device has a Word
Clock input, slave the device to the Traveler via
their word clock connection. You can then freely
transfer audio between the Traveler and the S/PDIF
device.
Traveler
Clock Source setting =
Internal (when transferring from the
Traveler to the other device)
Clock Source setting = Internal
Traveler
Word Clock Out
Word Clock In
S/PDIF or AES/EBU
device
With this setup, in the MOTU FireWire Audio Console window, choose Internal,
or any other clock source setting except SPDIF or AES/EBU. The other device
slaves to the Traveler via word clock for digital transfers in both directions.
Traveler
Clock Source setting =
S/PDIF or AES/EBU (when transferring
from the other device to the Traveler)
Traveler
SPDIF or AES/EBU
SPDIF or AES/EBU
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