Just to follow-up on this, I managed to get this all to work. I had to add 'channel 8' in the slave section, however now I can independently access each channel. so
#alsaplayer -dchannel12 plays to outputs 1 and 2
#alsaplayer -dchannel56 plays to outputs 5 and 6
#alsaplayer -dchannel78 plays to outputs 7 and 8
#alsaplayer -dchannelALL plays to all 8 channels
I've also installed envy24control and can see output to the PCMS in real-time. So all is great....
with one weird exception...
#alsaplayer -dchannel34 does not send anything to the outputs. When I try this, I can see on envy24control that the PCMs are active and playing music. However nothing comes out of the actual cable outputs. I don't know if this is a software issue or hardware. I'm leaning more to a problematic breakout cable (since the software configuration is exactly the same -- at least based on my rudimentary knowledge). Challenge with the breakout cable is that they are hard to find, and I don't have soldering talent.
Before I go too far down the path of trying to find another cable, is there any other advice or suggestions out there of what might be wrong on my configuration? Is there any way I can reroute the output of PCM 3 and 4 to another hardware output (like the SPDIF or analog inputs?) that would output analog?
On Sun, Jan 5, 2014 at 10:21 PM, H Plato <hplato@xxxxxxxxx> wrote:
Hello, and thanks for the response!
I didn’t see them listed in aplay -L. however, it looks like aplay -Dplug:channel34 doesn’t spit out an error. Haven’t been able to test yet as my server crashed. Hope to test this tomorrow.
On Jan 5, 2014, at 2:31 PM, Clemens Ladisch <cladisch@xxxxxxxxxxxxxx> wrote:
> H Plato wrote:
>> I would be immensely grateful if anyone has alsa experience that can
>> help me address the individual channels on my Delta 410. I’d like to
>> create alsa devices to I can play different audio streams to 4 sets of
>> speakers.
>>
>> pcm.channel12 {
>> pcm.channel34 {
>> pcm.channel56 {
>> pcm.channel78 {
>
> What is wrong with these devices?
>
>
> Regards,
> Clemens
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