On Wed, 8 Jan 2014 10:22:50 +0100, Sa?l Ibarra Corretg? wrote:
> On Jan 7, 2014, at 4:44 PM, Swinney C. <C.Swinney at swansea.ac.uk> wrote:
>
>> Hi Saul,
>>
>> Thanks for this, I was going to ask you if you had set up the 3.5mm analogue output WITHOUT the USB device installed. I think PJSIP still moans about the analogue output and the fact that there is no audio input. I was wondering if there was a way to set up a 'dummy' input device in order to fool PJSIP.
> I see. I used 2 sound cards at the same time, the builtin one just for ringing alerts, and a USB sound card for normal communication. The default sound card has the volume turned all the way down for some reason, so I had to turn it up with alsamixer, FYI.
Have you attempted to figure out if this issue is pjsip or raspberry-pi
specific, like create an analogous setup on some ordinary linux, e.g. by
disabling microphone by removing some kernel (or alsa) module and then
launch pjsua?
Maybe one can fool alsa to create a dummy microphone, analogous to
pjsip' colorbar camera device, in order to emit silence or some white
noise, and feed it to pjsip?
Eeri Kask
