Echo AUDIOFIRE 8 Owner's Manual

Also see for AUDIOFIRE 12: Owner's manual

Console SoftwareS/PDIF (AudioFire8 only) – The Sony/Phillips Digital Interchange Format is aserial bit-stream that has a clock signal embedded in the data stream. Whenrecording from an S/PDIF source, AudioFire8 will utilize the synchronizationclock that is embedded in the S/PDIF while it decodes the bit-stream. AudioFire8can only sync to S/PDIF clock if the master device is set to a sample rate between30kHz 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 theinput clock. For greater flexibility, this is not done automatically. If youfind that your S/PDIF recordings contain pops or skips, be sure that youhave selected S/PDIF as your input clock.Now let’s take a look at some sample configurations and how you might set themup from a synchronization standpoint.Let’s start with a simple example. Suppose that AudioFire8 is the only audiodevice 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 itsown clock to control its operation.Now a little more complicated set-up: You want to have an AudioFire8synchronized to another device via word clock. Simply set the AudioFire8 toInternal for its input clock. Now connect the AudioFire8 to the other device via aBNC cable running from Word Clock Out on the AudioFire8 to Word Clock In onother device. Now select Word for the other device’s input sync. The other devicewill slave to your AudioFire8 and they will now operate in unison.No matter how many devices you are synchronizing, the concept is essentially thesame. You are merely “daisy-chaining” devices together using compatible clocks.One device will operate as the source of the master clock, with each successivedevice using that clock to sync.36Console Software