I have an Edirol DA-2496 which uses the ICE1712 chip and is similar to the
M-audio Delta 1010. It has 8 analog channels in and out, plus spdif and midi. I
use ttable entries in asound.conf to address the channels. I also use ladspa
plugins to tweak the output sound, I use the multi-band EQ from swh-plugins.
This has worked correctly up to and including alsa-lib 1.0.14rc3, but is broken
if I use a newer alsa-lib, it then will only use the first pair of inputs and
outputs and ignores the remaining ttable entries, and will not load the ladspa
plugins.
Here is my asound.conf.
pcm.!default {
type plug
slave.pcm ladspa
ttable {0 {0 1}}
ttable {1 {1 1}}
ttable {0 {6 1}}
ttable {1 {7 1}}
}
pcm.ladspa {
type ladspa
slave.pcm "plughw:0,0";
channels 8
path "/usr/local/lib/ladspa";
playback_plugins [
{
label mbeq
input {
controls [ -8 -10 -12 -12 -8 -4 0 0 0 0 0 -4 -8 -8 -8 ]
}
}
]
}
pcm.ice1712 {
type hw
card 0
device 0
}
pcm.ch1 {
type plug
ttable {0 {0 1}}
slave.pcm ice1712
}
pcm.ch2 {
type plug
ttable {1 {1 1}}
slave.pcm ice1712
}
pcm.ch3 {
type plug
ttable {0 {2 1}}
slave.pcm ice1712
}
pcm.ch4 {
type plug
ttable {1 {3 1}}
slave.pcm ice1712
}
pcm.ch5 {
type plug
ttable {0 {4 1}}
slave.pcm ice1712
}
pcm.ch6 {
type plug
ttable {1 {5 1}}
slave.pcm ice1712
}
pcm.ch7 {
type plug
ttable {0 {6 1}}
slave.pcm ice1712
}
pcm.ch8 {
type plug
ttable {1 {7 1}}
slave.pcm ice1712
}
pcm.ch1and2 {
type plug
ttable {0 {0 1}}
ttable {1 {1 1}}
slave.pcm ice1712
}
pcm.ch3and4 {
type plug
ttable {0 {2 1}}
ttable {1 {3 1}}
slave.pcm ice1712
}
pcm.ch5and6 {
type plug
ttable {0 {4 1}}
ttable {1 {5 1}}
slave.pcm ice1712
}
pcm.ch7and8 {
type plug
ttable {0 {6 1}}
ttable {1 {7 1}}
slave.pcm ice1712
}
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