Owner`s manual
25
aware that operating
alongside
another product is not the same as operating
with
it. In order for accurate synchronization to occur, the other audio
product(s) in your system must support a synchronization mode that is
compatible with Mona. 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.
For this reason, Mona supports many synchronization modes. Mona can
slave to Word clock, S/PDIF, and ADAT. In addition, Mona can also
generate these synchronization signals and Esync, as well as perform
translation of one clock to another, such as transmitting Word while reading
ADAT.
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 Mona’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. Mona 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, Mona
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, Mona
will utilize the synchronization clock that is embedded in the S/PDIF while
it decodes the bitstream. Mona 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.