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-   -   ALSA - routing front Mic input to rear panel speaker output (https://www.linuxquestions.org/questions/linux-software-2/alsa-routing-front-mic-input-to-rear-panel-speaker-output-4175439251/)

littlebluebird 11-29-2012 02:01 AM

ALSA - routing front Mic input to rear panel speaker output
 
I'm on a SUSE Enterprise Server 11 system. And I have a special requirements on audio routing, which is -

1. Have different output on the front & rear panel audio output port.
2. For the front panel Mic, route the audio input to rear panel audio output port ONLY. (means front speaker won't play any sound from front Mic)

We're with a ACL262 sound card. And on the PC, we have 5 audio ports:
Front Panel: Mic, Headphone
Rear Panel: Mic, Line In, Line Out

So the idea is Front Mic -> Line out, Rear Mic -> Headphone, and we don't want to do any mixing.

For this purpose I have been digging ALSA for a while but still with little progress. I feel this is archive-able through ALSA configuration. Does anyone have an idea or hint about this?

I have captured some outputs of the alsa configuration as below:

Code:

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC262 Analog [ALC262 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Code:

arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC262 Analog [ALC262 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0


business_kid 12-01-2012 01:20 PM

/etc/asound.state is very influential here.

as for routing: arecord [options] | aplay [options]??


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