Midiman Quattro .asoundrc
From the ALSA wiki
Put the following into your .asoundrc file. This includes seperate stereo support and four channel support. Remember that the quattro can only do stereo i/o for 96000hz 24bit, 2i/1o or 1i/2o at 48000hz 24bit, 4i/4o at 48000hz 16bit in windows and mac environments. YMMV in Linux :)
.asoundrc
# The Quattro seems to only have two pcms, not 3.
# quattro1 is pcm0
pcm.quattro1 {
type hw
card 1
device 0
}
ctl.quattro1 {
type hw
card 1
}
# quattro2 is pcm1
pcm.quattro2 {
type hw
card 1
device 1
}
ctl.quattro2 {
type hw
card 1
}
#----
#
# compose 4 channels from two channel x two devices, hw:1,0 and hw:1,1
#
pcm.quattro {
type multi;
slaves.a.pcm "hw:1,0";
slaves.a.channels 2;
slaves.b.pcm "hw:1,1";
slaves.b.channels 2;
bindings.0.slave a;
bindings.0.channel 0;
bindings.1.slave a;
bindings.1.channel 1;
bindings.2.slave b;
bindings.2.channel 0;
bindings.3.slave b;
bindings.3.channel 1;
}
ctl.quattro {
type hw;
card 1;
}
#
# remap 4 channels as interleaved using plug.
#
pcm.q4 {
type plug;
slave.pcm "quattro";
ttable.0.0 1;
ttable.1.1 1;
ttable.2.2 1;
ttable.3.3 1;
}
ctl.q4 {
type hw;
card 1;
}
#
# Use route plugin
#
pcm.q41 {
type route;
slave.pcm "quattro";
ttable.0.0 1;
ttable.1.1 1;
ttable.2.2 1;
ttable.3.3 1;
}
ctl.q41 {
type hw;
card 1;
}
#----
