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OPERATION
The main function of the DI/O is to provide a high-quality alternative to
the digital audio converters of your computer’s soundcard. Simply plug
the analog output from your instrument, mixer, or preamp into the
DI/O’s 1/4” Inputs and connect the DI/O’s S/PDIF Output to your
soundcard. Next, decide whether your DI/O or soundcard will provide
the digital clock source. Only one device, called the Master, can
provide the digital clock; this ensures that all other devices synchronize
themselves to just one source and correctly interpret the transmitted
digital information. Devices other than the Master must be put into
“External” clock mode to properly work together.
Note
: Due to the
DI/O’s high quality converters, we recommend that when possible, you
use the DI/O as the Master clock.
To make the DI/O the Master, first set up your soundcard to receive an
external clock source. (Consult your soundcard’s manual for
information on how to do this.) Next, use the DI/O’s Sample Rate
switch to select the desired sample rate. For example, to select a
sample rate of 96kHz, repeatedly press the DI/O’s Sample Rate switch
until both the top (48/96) and middle (x2) lights are lit. The graphic on
top of the DI/O is provided to assist you with the different
configurations.
If instead you wish to use your soundcard as the Master clock source,
put the DI/O into External Sync mode by pressing the Sample Rate
switch until only the bottom (Ext.) light is lit. Select the desired sample
rate on your computer. (Consult your soundcard’s manual for
information on how to do this.)
Once the clock source and sample rate have been set, use the DI/O’s
Input Gain control to optimize the recording level. Generally, you
should watch your software’s Input Meters and adjust the DI/O’s Input
Gain control to a level just below clipping. (Again, check your
soundcard’s or software’s manual for information on setting optimal
levels.)