On Jan 3, 2014, at 4:26 PM, Swinney C. wrote: > Hi All, > > Is anyone aware of a way to get PJSIP to work on the Raspberry Pi so that it might just use the 3.5mm audio out? We have no need to take a mic input and so just are looking to have PJSIP as a dumb client accepting an inbound call and outputting the incoming audio stream via the 3.5 mm audio socket. At this point in time we didn?t want to add a USB (or other) sound device, however, from what I am reading below, even a USB sound device isn?t working that well. > > Has anyone had ay greater success with the Raspberry Pi? If so, what hardware are you using? > Hi, I did get both the audio jack and a USB device working. Compile PJSIP with ALSA backend instead of PortAudio, and make sure the sample rate is 16KHz. FOr me G722 and PCMA/PCMU codecs worked fine. Also, update your Raspberry Pi firmware to the latest available, at some point in late october they made a fix for ALSA which made the sound quality noticeably better. Good luck! -- Sa?l Ibarra Corretg? AG Projects
