Echo 12 Manuel D’Utilisation

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Your AudioFire is designed to work alongside other audio equipment. If you are 
planning on using your AudioFire with other audio equipment, please note the 
following:  
 
You can use your AudioFire product with other audio devices outside of your 
computer, but in order for accurate synchronization to occur, the other audio 
product(s) must support a synchronization mode that is compatible with your 
AudioFire hardware. Without such synchronization, the individual pieces of 
equipment will act independently of each other. This scenario may be fine for some 
musical applications; however, it is not appropriate for situations where sample-
accurate synchronization is required. 
 
Let’s take a brief look at the various synchronization types. 
 
Word Clock  – The Word Clock connectors can be found on the back panel of 
AudioFire8 or AudioFire12. When your AudioFire product is set to “Internal” this 
synchronization clock runs at the AudioFire product’s selected sample rate. Think 
of it as a kind of electronic metronome, which clicks back and forth at the digital 
sample rate. It is one of the most widely used forms of synchronization in digital 
audio. Your AudioFire product is always generating Word Clock on its Word 
Clock output BNC connector. Although it can generate Word Clock at any sample 
rate it is set to, your AudioFire product can only sync to Word Clock if the master 
device is set to a sample rate between 30kHz and 100kHz (200kHz for 
AudioFire12). Otherwise you will get noise and/or loss of sync. 
 
S/PDIF  (AudioFire2, AudioFire4 and AudioFire8) – 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, your AudioFire will utilize 
the synchronization clock that is embedded in the S/PDIF while it decodes the bit-
stream. Your AudioFire 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.