full-duplex audio from Wolson codec

rukhsana ansari ruk.ansari at gmail.com
Mon Nov 19 04:50:04 CET 2007

Hi Michael,

Since I  haven't received a response from the community mailing lists, 
can you confirm whether the audio drivers have the necessary support to 
have full-duplex audio required to test a VOIP application on Neo?
As I understand it one can switch between a recording and playback mode 
with the alsa profiles bu this won't do for a VOIP application.


rukhsana ansari wrote:
> Hi,
> http://wiki.openmoko.org/wiki/Neo1973_Audio_Subsystem#Call_recording
> lists the driver status as unknown for recording/playback.
> I've followed steps at 
> http://wiki.openmoko.org/wiki/User:Historybuff/notes to independently 
> restore the captureheadset profile and record sound  followed by 
> restoring stereosound profile for playback.
> However, I was looking into the possibility of testing a VOIP 
> application using the usb networking. Based on the above information 
> it looks as if it is not possible to have full-duplex audio for VOIP.
> Can someone confirm whether this in indeed the case.
> Also, the default VOIP application that  comes with Trolltech's QPE4.3 
> image for the Neo does not have sound working.
> Thanks,
> Rukhsana

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