Core Machine (Operating system/System info/Roon build number)
Windows10, Motu M4 ASIO drivers installed, Roon 1.7 build 710
Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)
Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)
USB Audio Device Motu M4
Description Of Issue
M4 has four ASIO output channels. I tested the outputs separately with an other program and got sound on on all four channels.
I like to use the roon convolver as an XO. So a Stereo signal shall be played. This goes to the convolver with its four XO filters. The Convolver file has for outputs, L/R Woofer, L/R Mid+High.
This is convolver setup:
192000 2 4 0
0 0 0 0
Looking at the device settings I can only see “Channel Layout” 2.0. There is no other selection possible. I would have expected 4.0!
Opening the “Signal Path” during playback I see:
- Convolution Filter: 4 path, 66k taps
- Bit Depth Conversion: 64Bit Float to 32Bit
- Channel Mapping: 4.0 to 2.0
I guess this channel mapping prohibits output to the ASIO channels 3 and 4.
What can I do disable the “Channel Mapping” to also get output on the ASIO Channels 3 and 4?