User Manual

Chapter 4: HD I/O Configuration 25
Sample Rate Conversion
Sample Rate Conversion (SRC) is independently
available for AES/EBU stereo input pairs at all
sample rates. When Digital Format is set to ADAT
or TDIF, SRC can only be enabled or disabled for
all channel inputs. Sample Rate Conversion on
Input is only available for Digital I/O cards, it is
not available for the enclosed digital ports.
AES/EBU
When Digital Format is set to AES/EBU, SRC can
be enabled or disabled for each stereo input
pairs at sample rates of 44.1 kHz to 96 kHz, and
at 176.4 kHz and 192 kHz in Single Wire mode.
Sample Rate Conversion is not available for
AES/EBU at 176.4 kHz and 192 kHz in Dual Wire
mode.
ADAT
For sample rates of 44.1 kHz and 48 kHz, when
Digital Format is set to ADAT, Sample Rate Con-
version can be enabled or disabled for all inputs.
ADAT (SRC)
At sample rates higher than 48 kHz, with ADAT
(SRC) selected as the Digital Format, Sample Rate
Conversion is enabled automatically for all in-
put channels.
ADAT (S/MUX)
At sample rate higher than 48 kHz, with ADAT
(S/MUX) selected as the Digital Format, Sample
Rate Conversion can be enabled or disabled for
all input channels.
TDIF
For sample rates of 44.1 kHz and 48 kHz, when
Digital Format is set to TDIF, Sample Rate Conver-
sion can be enabled or disabled for all inputs.
TDIF (SRC)
At sample rates higher than 48 kHz, with TDIF
(SRC) selected as the Digital Format, Sample Rate
Conversion is enabled automatically for all in-
put channels.
Set To Default
The Set To Default button sets all settings to the
factory defaults, except for the Digital Format set-
ting in the Main page.
Digital outputs do not support sample rate
conversion.
Sample Rate Conversion adds latency to the
input signal, so you should usually disable
Sample Rate Conversion when it is not
needed.
At session sample rates above 48 kHz,
sample rate conversion for the TDIF and
Optical (ADAT) inputs on the Digital I/O
card is automatically enabled on all eight
inputs of the selected format—unless you are
using Optical (ADAT S/MUX).
SRC enabled for AES/EBU Input channels 1–2 and 3–4
at a Sample Rate of 96 kHz