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User's Guide HDSPe MADI
© RME
13. Operation under ASIO
13.1 General
Start the ASIO software and select
ASIO Hammerfall DSP
as the audio I/O device.
The HDSP system supports
ASIO Direct Monitoring
(ADM).
The HDSPe MADI’s MIDI I/O can be used with both MME MIDI and DirectMusic MIDI.
At a sample rate of 88.2 or
96 kHz (Double Speed
mode), the number of
channels available at the
MADI input and output is
halved. At a sample rate of
176.4 or 192 kHz (Quad
Speed mode), the number
of channels is reduced to
16.
Note: When changing the
sample rate range between
Single, Double and Quad
Speed the number of
channels presented from
the ASIO driver will change
too. This may require a
reset of the I/O list in the
audio software.
13.2 Known Problems
If a computer does not provide sufficient CPU-power and/or sufficient PCIe-bus transfer rates,
then drop outs, crackling and noise will appear. Raising the buffer size in the Settings dialog of
the HDSP system helps in most cases. We recommend to deactivate all PlugIns to verify that
these are not the reason for such effects.
Another common source of trouble is incorrect synchronization. ASIO does not support asyn-
chronous operation, which means that the input and output signals not only have to use the
same sample frequency, but also have to be in sync. Devices connected to the HDSPe MADI
must be properly configured for Full Duplex operation. As long as SyncCheck (in the Settings
dialog) only displays
Lock
instead of
Sync
, the devices have not been set up properly!
The same applies when using more than one HDSP system - they all have to be in sync. Else a
periodically repeated noise will be heard.
RME supports
ASIO Direct Monitoring
(ADM). Please note that not all programs support ADM
completely or error-free. The most often reported problem is the wrong behaviour of panorama
in a stereo channel.
In case of a drift between audio and MIDI, or in case of a fixed deviation (MIDI notes placed
close before or behind the correct position), the settings in Cubase/Nuendo have to be
changed. At the time of print the option 'Use System Timestamp' should be activated. The
HDSP system supports both MME MIDI and DirectMusic MIDI. It depends on the used applica-
tion which one will work better.
Summary of Contents for HDSPe MADI
Page 5: ...User s Guide HDSPe MADI RME 5 User s Guide HDSPe MADI General ...
Page 33: ...User s Guide HDSPe MADI RME 33 User s Guide HDSPe MADI Connections and TotalMix ...
Page 40: ...40 User s Guide HDSPe MADI RME ...
Page 62: ...62 User s Guide HDSPe MADI RME ...
Page 63: ...User s Guide HDSPe MADI RME 63 User s Guide HDSPe MADI Technical Reference ...
