User Manual

User's Guide Digiface USB © RME
19
9. Operation under ASIO
9.1 General
Start the ASIO software and select ASIO MADIface USB as the audio I/O device or the audio
driver.
The Digiface USB supports ASIO Direct Monitoring (ADM).
9.2 Channel Count under ASIO
The Digiface allows the use of sample rates up to 192 kHz via the ADAT interface. For this to
work single-channel data is spread to two or four channels using the Sample Multiplexing tech-
nique. Therefore the number of channels is reduced to 16 or 8 respectively.
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.
Single Speed Double Speed Quad Speed
Digiface USB ADAT (1-8) Digiface USB ADAT (1-4) Digiface USB ADAT (1+2)
Digiface USB ADAT (9-16) Digiface USB ADAT (5-8) Digiface USB ADAT (3+4)
Digiface USB ADAT (17-24) Digiface USB ADAT (9-12) Digiface USB ADAT (5+6)
Digiface USB ADAT (25-32) Digiface USB ADAT (13-16) Digiface USB ADAT (7+8)