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S/PDIF
(AudioFire8 only) – The Sony/Phillips Digital Interchange Format is a
serial bit-stream that has a clock signal embedded in the data stream. When
recording from an S/PDIF source, AudioFire8 will utilize the synchronization
clock that is embedded in the S/PDIF while it decodes the bit-stream. AudioFire8
can only sync to S/PDIF clock if the master device is set to a sample rate between
30kHz and 100kHz. Otherwise you will get noise and/or loss of sync.
Note:
When recording from a S/PDIF port, you must select
S/PDIF
as the
input clock. For greater flexibility, this is not done automatically. If you
find that your S/PDIF recordings contain pops or skips, be sure that you
have selected
S/PDIF
as your input clock.
Now let’s take a look at some sample configurations and how you might set them
up from a synchronization standpoint.
Let’s start with a simple example. Suppose that AudioFire8 is the only audio
device used in your studio. Since you have no other devices to synchronize with,
simply select
Internal
for AudioFire8’s input clock. AudioFire8 will then use its
own clock to control its operation.
Now a little more complicated set-up: You want to have an AudioFire8
synchronized to another device via word clock. Simply set the AudioFire8 to
Internal
for its input clock. Now connect the AudioFire8 to the other device via a
BNC cable running from Word Clock Out on the AudioFire8 to Word Clock In on
other device. Now select
Word
for the other device’s input sync. The other device
will slave to your AudioFire8 and they will now operate in unison.
No matter how many devices you are synchronizing, the concept is essentially the
same. You are merely “daisy-chaining” devices together using compatible clocks.
One device will operate as the source of the master clock, with each successive
device using that clock to sync.
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Console Software