I've installed AV Linux, for the most part everything is working great. I've got 2 RME HDSP cards installed (one with a Multiface and one with a Digiface hanging off them - the whole rig is tied together with Wordclock) and I want to set them up as a 'Merged' card, so that all 44 channels of IO are available using the ALSA driver in Reaper. (for the moment I have no real need/desire to complicate things with a Jack setup).
I've got the necessary firmware installed, the HDSP mixer and things are generally working, but try as I might I can't work out how to make the merged card work so that I can access all the IO.
Some insight:
Code: Select all
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: DSP [Hammerfall DSP], device 0: RME Hammerfall DSP + Digiface [RME Hammerfall DSP + Digiface]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: DSP_1 [Hammerfall DSP], device 0: RME Hammerfall DSP + Multiface [RME Hammerfall DSP + Multiface]
Subdevices: 1/1
Subdevice #0: subdevice #0
Code: Select all
$ aplay -L
default
Playback/recording through the PulseAudio sound server
null
Discard all samples (playback) or generate zero samples (capture)
jack
JACK Audio Connection Kit
pulse
PulseAudio Sound Server
DSP
DSP_1
merge
merge2
sysdefault:CARD=DSP
Hammerfall DSP, RME Hammerfall DSP + Digiface
Default Audio Device
dmix:CARD=DSP,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Digiface
Direct sample mixing device
dsnoop:CARD=DSP,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Digiface
Direct sample snooping device
hw:CARD=DSP,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Digiface
Direct hardware device without any conversions
plughw:CARD=DSP,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Digiface
Hardware device with all software conversions
usbstream:CARD=DSP
Hammerfall DSP
USB Stream Output
hdmi:CARD=NVidia,DEV=0
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
HDA NVidia, HDMI 1
HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
HDA NVidia, HDMI 2
HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
HDA NVidia, HDMI 3
HDMI Audio Output
hdmi:CARD=NVidia,DEV=4
HDA NVidia, HDMI 4
HDMI Audio Output
dmix:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct sample mixing device
dmix:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct sample mixing device
dmix:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct sample mixing device
dmix:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct sample mixing device
dmix:CARD=NVidia,DEV=10
HDA NVidia, HDMI 4
Direct sample mixing device
dsnoop:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=10
HDA NVidia, HDMI 4
Direct sample snooping device
hw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=10
HDA NVidia, HDMI 4
Direct hardware device without any conversions
plughw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=10
HDA NVidia, HDMI 4
Hardware device with all software conversions
usbstream:CARD=NVidia
HDA NVidia
USB Stream Output
sysdefault:CARD=DSP_1
Hammerfall DSP, RME Hammerfall DSP + Multiface
Default Audio Device
dmix:CARD=DSP_1,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Multiface
Direct sample mixing device
dsnoop:CARD=DSP_1,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Multiface
Direct sample snooping device
hw:CARD=DSP_1,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Multiface
Direct hardware device without any conversions
plughw:CARD=DSP_1,DEV=0
Hammerfall DSP, RME Hammerfall DSP + Multiface
Hardware device with all software conversions
usbstream:CARD=DSP_1
Hammerfall DSP
USB Stream Output
sysdefault:CARD=U25
Default Audio Device
usbstream:CARD=U25
USB Axiom 25
USB Stream Output
sysdefault:CARD=M4U
Default Audio Device
usbstream:CARD=M4U
ESI M4U
USB Stream Output
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pcm.DSP {
type hw
card DSP
}
ctl.DSP {
type hw
card DSP
}
pcm.DSP_1 {
type hw
card DSP_1
}
ctl.DSP_1 {
type hw
card DSP_1
}
pcm.merge {
type multi;
slaves.a.pcm hw:DSP
slaves.a.channels 26;
slaves.b.pcm hw:DSP_1
slaves.b.channels 18;
bindings.0.slave a;
bindings.0.channel 0;
bindings.1.slave a;
bindings.1.channel 1;
bindings.2.slave a;
bindings.2.channel 2;
bindings.3.slave a;
bindings.3.channel 3;
bindings.4.slave a;
bindings.4.channel 4;
bindings.5.slave a;
bindings.5.channel 5;
bindings.6.slave a;
bindings.6.channel 6;
bindings.7.slave a;
bindings.7.channel 7;
bindings.8.slave a;
bindings.8.channel 8;
bindings.9.slave a;
bindings.9.channel 9;
bindings.10.slave a;
bindings.10.channel 10;
bindings.11.slave a;
bindings.11.channel 11;
bindings.12.slave a;
bindings.12.channel 12;
bindings.13.slave a;
bindings.13.channel 13;
bindings.14.slave a;
bindings.14.channel 14;
bindings.15.slave a;
bindings.15.channel 15;
bindings.16.slave a;
bindings.16.channel 16;
bindings.17.slave a;
bindings.17.channel 17;
bindings.18.slave a;
bindings.18.channel 18;
bindings.19.slave a;
bindings.19.channel 19;
bindings.20.slave a;
bindings.20.channel 20;
bindings.21.slave a;
bindings.21.channel 21;
bindings.22.slave a;
bindings.22.channel 22;
bindings.23.slave a;
bindings.23.channel 23;
bindings.24.slave a;
bindings.24.channel 24;
bindings.25.slave a;
bindings.25.channel 25;
#Multiface
bindings.26.slave b;
bindings.26.channel 26;
bindings.27.slave b;
bindings.27.channel 27;
bindings.28.slave b;
bindings.28.channel 28;
bindings.29.slave b;
bindings.29.channel 29;
bindings.30.slave b;
bindings.30.channel 30;
bindings.31.slave b;
bindings.31.channel 31;
bindings.32.slave b;
bindings.32.channel 32;
bindings.33.slave b;
bindings.33.channel 33;
bindings.34.slave b;
bindings.34.channel 34;
bindings.35.slave b;
bindings.35.channel 35;
bindings.36.slave b;
bindings.36.channel 36;
bindings.37.slave b;
bindings.37.channel 37;
bindings.38.slave b;
bindings.38.channel 38;
bindings.39.slave b;
bindings.39.channel 39;
bindings.40.slave b;
bindings.40.channel 40;
bindings.41.slave b;
bindings.41.channel 41;
bindings.42.slave b;
bindings.42.channel 42;
bindings.43.slave b;
bindings.43.channel 43;
bindings.44.slave b;
bindings.44.channel 44;
}
ctl.merge {
type hw
card DSP
}
pcm.merge2 {
type route
slave.pcm "merge"
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
}
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$ aplay -D merge dnbsamples_break33.wav
ALSA lib pcm_multi.c:1349:(_snd_pcm_multi_open) Invalid or missing schannel for channel 26
aplay: main:828: audio open error: Invalid argument
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$ aplay -D DSP_1 dnbsamples_break33.wav
Playing WAVE 'dnbsamples_break33.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
aplay: set_params:1334: Access type not available