Playing a wav file on the openmoko voice stream

[Ketaki Deo]

Hey,

I am trying to playback a wav file by following the instructions given in
the wiki,
http://wiki.openmoko.org/wiki/Neo_1973_audio_subsystem

In the wiki they have specified that we need to change the following in the
asound.state file,
if you are inside a voice call (e.g. FSO/zhone), open Alsactl and change the
following mixer controls:

   1. Mono Mixer Left
      - this enables audio routing from the Stereo DAC left channel to the
      Mono Out (GSM Modem)
   2. Mono Mixer Right Playback Switch
      - this enables audio routing from the Stereo DAC right channel to the
      Mono Out (GSM Modem)
   3. PCM Level
      - adjust the PCM Level up to the desired playback volume



But they have not mentioned what exactly to change.
Can anyone please help me with this?

-- 
Thanks and Regards,
Ketaki Deo
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