---------- Forwarded message ----------
From: Burak METİN <metinbu...@gmail.com>
Date: Tue, Jul 1, 2014 at 1:55 PM
Subject: Re: [Alsa-user] Audio codec channels as separate devices
To: "Krause, Mathias" <mathias.kra...@xse.de>
i made the right and left channels as separate devices but i also want to
add the input channel to these devices. In alsa standard, #0 - front left,
#1 - front right, #2 - rear left, #3 - rear right, #4 - center, and #5 -
LFE (subwoofer)
What is the identity of microphone (or) line in channel ?
On Tue, Jul 1, 2014 at 10:31 AM, Krause, Mathias <mathias.kra...@xse.de>
wrote:
> Hello,
>
>
>
> please try using something like that. (un-tested). Playing to dev1 and
> dev2 should then create mono streams with are send to one of the dmixer
> channel.
>
>
>
> Check http://www.alsa-project.org/main/index.php/Asoundrc to see what is
> going on.
>
>
>
> Regards,
>
> Mathias
>
>
>
>
>
> pcm.dev1 {
>
> type plug
>
> slave.pcm "dmixer"
>
> slave.channels 1
>
> ttable.0.0 0.5
>
> ttable.1.0 0.5
>
> }
>
>
>
> pcm.dev2 {
>
> type plug
>
> slave.pcm "dmixer"
>
> ttable.0.1 0.5
>
> Ttable.1.1 0.5
>
> }
>
>
>
> pcm.dmixer {
>
> type dmix
>
> ipc_key 1024
>
> slave {
>
> pcm "hw:1,0"
>
> period_time 0
>
> period_size 1024
>
> buffer_size 4096
>
> rate 44100
>
> }
>
> bindings {
>
> 0 0
>
> 1 1
>
> }
>
> }
>
>
>
>
>
> *From:* Burak METİN [mailto:metinbu...@gmail.com]
> *Sent:* Monday, June 30, 2014 7:14 PM
> *To:* Krause, Mathias
> *Cc:* alsa-user@lists.sourceforge.net
> *Subject:* Re: [Alsa-user] Audio codec channels as separate devices
>
>
>
> Hello,
>
>
>
> I have changed the /etc/asound.conf as below but nothing changed in
> alsamixer and aplay -l
>
>
>
>
>
> pcm.!iteration {
>
> type plug
>
> slave.pcm "dmixer"
>
> }
>
>
>
> pcm.dmixer {
>
> type dmix
>
> ipc_key 1024
>
> slave {
>
> pcm "hw:1,0"
>
> period_time 0
>
> period_size 1024
>
> buffer_size 4096
>
> rate 44100
>
> }
>
> bindings {
>
> 0 0
>
> 1 1
>
> }
>
> }
>
>
>
> ctl.dmixer {
>
> type hw
>
> card 0
>
> }
>
>
>
> On Mon, Jun 30, 2014 at 4:58 PM, Krause, Mathias <mathias.kra...@xse.de>
> wrote:
>
> Hello,
>
>
>
> yes, check a combination of "dmix" and "route" (or plug) to do that:
>
> http://www.alsa-project.org/main/index.php/Asoundrc
>
>
>
> -
>
> Mathias
>
>
>
>
>
>
>
> Hello, I want to use the channels of the usb audio codec with independent
> sounds. Is it possible to make these channels separate devices by using
> alsa plugins?
>
>
>
>
>
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