VxD console – Gina24 and Layla24
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Let’s take a brief look at the various synchronization types.
Word Clock
–
This is a synchronization signal that connects to the BNC
connector labeled
Word Clock
on Layla24’s back panel. This synchronization
clock runs at the 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. Layla24 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, Layla24 can only sync to Word
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.
S/PDIF
– 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, whether via optical cables or RCA cables, Echo products will utilize the
synchronization clock that is embedded in the S/PDIF while it decodes the
bitstream. Your Echo digital audio system can only sync to S/PDIF clock if the
master device is set to a sample rate between 30kHz and 50kHz. 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.
ADAT
– (Layla24/Gina24) The Alesis ADAT optical interface can send and
receive up to 8 simultaneous channels of digital audio data over fiber optic cables.
Unlike wire cables, fiber optic cables do not add noise or interference.
Layla24/Gina24 can send out (or “master”) ADAT clock as well slave to it. If you
want the interface to slave to an ADAT clock, just set the input clock to the
ADAT
setting. Layla24/Gina24 can only sync to ADAT clock if the master device is set to
a sample rate between 40kHz and 50kHz. Otherwise you will get noise and/or loss
of sync.
VxD console – Gina24 and Layla24
