Universal Audio Apollo Software - Manual (Page 61)

Apollo Software Manual Chapter 3: Console Application 61
Host Status
When the Apollo drivers are not properly communicating with the Apollo hardware, text in
the Unit Selection section appears in red. Check software installation and connections if
this occurs.
Global Interface Settings
Behavior and control of the Global Interface Settings depend on the environment:
Without a DAW – Sample Rate and Clock Source settings define the active sample rate
and clock source for Apollo when a DAW is not used (when Console is the only host ap-
plication). PT Mode has no effect when audio applications (other than Console) are not
used.
With a DAW – These settings are usually changed within the DAW application’s audio
preferences.
Note: PT Mode changes the driver I/O complement, therefore it affects all DAWs
under both Mac and Windows. See
“PT Mode” on page 100 for details.
Sample Rate
Defines the sample rate that will be used for Apollo A/D and D/A conversion and UAD
Powered Plug-Ins processing. When using UAD Powered Plug-Ins, higher sample rates
require more UAD DSP resources.
Apollo Twin Note: If the current digital input setting is S/PDIF and the sample rate
is changed to a rate higher than 96 kHz, the clock source is changed to Internal
and the S/PDIF inputs are no longer unavailable.
Clock Source
Sets the master clock source for A/D and D/A conversion. The available options are:
Apollo – Internal clock or external clock from S/PDIF, ADAT, or Word Clock.
Apollo Twin – Internal clock or external clock from S/PDIF or ADAT.
Apollo 16 – Internal clock or external clock from AES/EBU or Word Clock.
If the Clock Source setting is not set to Internal and the external clock signal is not
detected, then the text in the Clock Source display is RED (if this occurs, verify connec-
tions and external clock device settings).
Note: Only one device in a system can be the master clock. This setting must
match the host DAW setting or audio glitches and/or distortion could occur.
Digital Input (Apollo Twin only)
This menu selects the digital input type (ADAT or S/PDIF) to be used by Apollo Twin’s
TOSLINK optical connector. Click the field to display the drop menu and select a differ-
ent digital input source.
Apollo Twin supports S/PDIF digital input at sample rates up to 96 kHz. If the current
setting is ADAT and the sample rate is higher than 96 kHz, when S/PDIF input is select-
ed, the clock source is changed to Internal and the S/PDIF inputs are no longer unavail-
able.