Hi Leonardo,
Thank you for explanation.
It looks like your variant is very similar to what I did, just yours
have separate definitions for "multi" pcm and "route" pcm, while mine
used "nested" definitions.
Anyway I tried your variant and got the same "Channels count non
available" message.
Somehow it does not like 2 channels for the slave devices.
aplay -l on my machine produces:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
card 0: Intel [HDA Intel], device 1: VT1708S Digital [VT1708S Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: default [Microsoft LifeChat LX-3000 ], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
Does it mean that card 1 has only one "channel"? I think I tried
removing "bindings 3" but it was not sufficient, I had to remove
"bindings 1" as well, that is leave only one channel per slave.
How should I proceed?
On Sat, Jan 8, 2011 at 12:41 AM, Leonardo Gomes <leogolima@xxxxxxxxxxxx> wrote:
> Hi,
>
> First of all, sorry my english.
>
> I don't a expert, but i'll try to help you.
>
> Try to change you pcm.both to this:
>
> pcm.both {
> type multi
> slaves.a.pcm HDA
> slaves.a.channels 2
> slaves.b.pcm lifechat
> 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
> }
>
> Create a pcm type route to copy every channel to channel of other sound
> card.
>
> # This to make a stereo output for both sound card
> pcm.2asone {
> type route
> slave.pcm "both"
> ttable.0.0 1
> ttable.1.1 1
> ttable.0.2 1
> ttable.1.3 1
> }
>
>
> If you need converts channels, rate and format on request.
> Use he to applications like xmms and others that let to change alsa
> configurations.
>
> pcm.2as1plug
> {
> type plug
> slave.pcm "2asone"
> # hint for KDE phonon
> hint {
> show on
> description "Output to two sound cards"
> }
> }
>
> If you want to make he a default:
>
> pcm.!default {
> type plug
> slave.pcm "2as1plug"
> # Or
> # slave.pcm "2asone"
> }
>
> Maybe a pcm with dmix before pcm.both, to share the sound output for
> more than one application at same time.
> The shell command aplay -l will show the number of every card and the
> device. Understanding this command, make easy to create pcm to share cards.
>
> # First Sound Card
> pcm.2asone_ATISB_dmix {
> type dmix
> # ipc_key is a unique number
> # for every ALSA pcm
> ipc_key 170300
> # "hw:Sound-Card-Number,Device-Number"
> # Sound Card Number of aplay -l
> # Device-Number of aplay -l
> slave.pcm "hw:0,0"
> }
>
> # Second Sound Card
> pcm.2asone_ATIHDMI_dmix {
> type dmix
> ipc_key 170310
> slave.pcm "hw:1,3"
> }
>
> If you use this pcm dmix above, you must change the pcm names HDA and
> lifechat in pcm.both
>
> If i not forgot anything, that's all.
>
>
> On 07-01-2011 18:20, Mark Goldstein wrote:
>> Hi,
>>
>> I'm trying to duplicate audio output to 2 cards.
>> One card is intel HDA with VIA VT1708S codec and another
>> is USB-Audio - Microsoft LifeChat LX-3000.
>>
>> (alsa driver 1.0.23)
>>
>> Following some examples in alsa wiki I created .asoundrc:
>>
>> =======
>>
--
Mark Goldstein
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