Owner`s manual

For this reason, Gina24 supports many synchronization modes. Gina24 can

slave to Esync, S/PDIF, and ADAT. In addition, Gina24 can also generate

these synchronization signals, as well as perform translation of one clock to

another, such as transmitting Esync while reading ADAT.

Let’s take a brief look at the various synchronization types.

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, RCA cables, or the

CDROM Digital connector cable, Gina24 will utilize the synchronization

clock that is embedded in the S/PDIF while it decodes the bitstream.

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

– 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. To check if

the optical cable is carrying a signal, just look at the end for a glowing red

light. Gina24 can send out (or “master”) ADAT clock as well slave to it. If

you want Gina24 to slave to an ADAT clock, just set Gina24’s input clock

to the

ADAT

setting.

Note:

To preserve the high audio quality of Gina24’s converters it is best to

use Gina24’s

Internal

input clock setting instead of synchronizing to an

external ADAT clock, which may add unwanted jitter to the signal.

Esync/Esync 96 kHz

– Esync is a proprietary form of super clock that is

used to synchronize two or more Echo 24-bit products like Gina24, Mona,

Layla24, and Darla24. While Gina24 and Darla24 have both input and

output connectors on their PCI cards, Mona and Layla24 only have the

Esync output connectors. There are two buttons available: “Esync” and

“Esync 96 kHz.” If you want to slave to an Esync capable Echo card that is

running at a sample rate of 48 kHz or less then select the “Esync” button. If

you want to slave to an Esync capable Echo card that is running at a sample

rate above 48 kHz (88.2 or 96 kHz) then select the “Esync 96 kHz” button.