User`s guide

User's Guide Fireface 400 © RME

9. Operation under ASIO

9.1 General

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

Fireface 400 supports ASIO Direct Monitoring (ADM).

The Fireface 400 supports both MME MIDI and DirectMusic MIDI.

9.2 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 per port is reduced from 8 to 4.

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 400 Analog 1 to 8 Fireface 400 Analog 1 to 8 Fireface 400 Analog 1 to 8

Fireface 400 SPDIF L / R Fireface 400 SPDIF L / R Fireface 400 SPDIF L / R

Fireface 400 ADAT 1 to 2 Fireface 400 ADAT 1 to 2 Fireface 400 ADAT 1 to 2

Fireface 400 ADAT 3 to 4 Fireface 400 ADAT 3 to 4 Fireface 400 ADAT 3 to 4

Fireface 400 ADAT 5 to 6 Fireface 400 ADAT 5 to 6 Fireface 400 ADAT 5 to 6

Fireface 400 ADAT 7 to 8 Fireface 400 ADAT 7 to 8 Fireface 400 ADAT 7 to 8