User Manual

User's Guide Fireface UC © RME

10. Operation under ASIO

10.1 General

Start the ASIO software and select ASIO Fireface USB as the audio I/O device or the audio

driver.

Fireface UC supports ASIO Direct Monitoring (ADM).

The Fireface UC supports both MME MIDI and DirectMusic MIDI.

10.2 Channel Count under ASIO

At a sample rate of 88.2 or 96 kHz, the ADAT optical input and outputs operate in S/MUX mode,

so the number of available channels is reduced from 8 to 4.

At a sample rate of 176.4 and 192 kHz, the ADAT optical input and outputs operate in S/MUX4

mode, so the number of available channels is limited to 2.

Note

: when changing the sample rate range between Single, Double and Quad Speed the num-

ber 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

Fireface UC Analog 1 to 8 Fireface UC Analog 1 to 8 Fireface UC Analog 1 to 8

Fireface UC SPDIF L / R Fireface UC SPDIF L / R Fireface UC SPDIF L / R

Fireface UC AS 1 to 2 Fireface UC AS 1 to 2 Fireface UC AS 1 to 2

Fireface UC ADAT 3 to 4 Fireface UC ADAT 3 to 4 Fireface UC ADAT 3 to 4

Fireface UC ADAT 5 to 6 Fireface UC ADAT 5 to 6 Fireface UC ADAT 5 to 6

Fireface UC ADAT 7 to 8 Fireface UC ADAT 7 to 8 Fireface UC ADAT 7 to 8