Analog Recording; Digital Recording - RME Audio Fireface UC User Manual

9.6 Analog Recording

For recordings via the analog inputs the corresponding record device has to be chosen (Fire-
face UC Analog (x+x)).
The input sensitivity of the rear inputs can be changed via the Settings dialog (Gain/Level) in
three steps so that the recording is done with optimized levels. A further improvement is possi-
ble by slowly raising the source's output level until the peak level meters in TotalMix reach
about –3 dB.
The input sensitivity of the frontside analog inputs can also be adjusted directly at the Fireface
via the rotary encoder knob. A Signal LED and a Clip LED help to find the correct level adjust-
ment.
More information is found in chapter 22.2 and 22.3.
It often makes sense to monitor the input signal or send it directly to the output. This can be
done at zero latency using TotalMix (see chapter 26).
An automated control of real-time monitoring can be achieved by Steinberg's ASIO protocol
with RME's ASIO drivers and any ASIO 2.0 compatible program. When 'ASIO Direct Monitoring'
has been switched on, the input signal is routed in real-time to the output whenever a recording
is started (punch-in).

9.7 Digital Recording

Unlike analog soundcards which produce empty wave files (or noise) when no input signal is
present, digital interfaces always need a valid input signal to start recording.
Taking this into account, RME added a
comprehensive I/O signal status display
showing sample frequency, lock and sync
status in the Settings dialog, and status LEDs
for each input to the Fireface UC.
The sample frequency shown in the fields
Clock Mode and Input Status is useful as a
quick display of the current configuration of the
unit and the connected external equipment. If
no sample frequency is recognized, it will read
'No Lock'.
This way, configuring any suitable audio application for digital recording is simple. After select-
ing the required input, Fireface UC displays the current sample frequency. This parameter can
then be changed in the application's audio attributes (or similar) dialog.
User's Guide Fireface UC © RME
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