full-duplex audio from Wolson codec

rukhsana ansari ruk.ansari at gmail.com
Mon Nov 19 05:18:55 CET 2007


My apologies. Please ignore my earlier mail.
I found a couple of responses that confirm that its possible to get 
full-duplex audio.


rukhsana ansari wrote:
> 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.
> Thanks,
> Rukhsana
> 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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