User Manual

User's Guide HDSP AES-32 © RME
21
12.5 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 to the HDSP
AES-32, showing sample frequency, lock and sync status for every input.
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 selecting
the correct input, HDSP AES-32
displays the current sample
frequency. This parameter can then
be changed in the application’s
audio properties (or similar) dialog.
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
25).
An automated control of real-time
monitoring can be achieved by
Steinberg’s ASIO protocol with
RME’s ASIO drivers and all ASIO 2
compatible programs. 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).