User Manual

User's Guide MADIface XT © RME

9. Operation under ASIO

9.1 General

Start the ASIO software and

select ASIO HDSPe FX or

ASIO MADIface USB as the

audio I/O device.

MADIface XT supports ASIO

Direct Monitoring (ADM).

Its MIDI I/Os 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 avail-

able 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 re-

duced 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.

9.2 Known Problems

If a computer does not provide sufficient CPU-power, and/or sufficient USB or PCI bus transfer

rates, 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 MADIface XT helps in most cases. It is also

recommended to deactivate all PlugIns to verify that these are not the reason for such effects.

Further information is found in chapter 30.4.

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. All devices connected to the MADIface XT

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 MADIface XT - they all have to be in sync. Else a

periodically repeated noise will be heard.

MADIface XT supports ASIO Direct Monitoring (ADM). Please note that not all programs sup-

port ADM completely or error-free. The most often reported problem is the wrong behaviour of

panorama in a stereo channel. Also try to avoid setting the TotalMix FX hardware outputs (third

row) to mono mode. This will most likely break ADM compatibility.

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

MADIface supports both MME MIDI and DirectMusic MIDI. It depends on the used application

which one will work better.