Hello, Presently, the PJSIP library is implemented to use G.722 codec for 16 bits per sample data, 16kHz sampling rate, and 1 channel audio data. I have changed the hardware on my system(microphone), which uses 32 bit signed data, and has 2 channels. I hear only noise from the encoded audio file, and would like to know if G.722 can be used for 32 bit 2 channel data, and if so what parameters should be changed. Also, if G.722 cannot be used, what would be an alternative. Any help is appreciated. Thank you, Ankhit -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20151215/55ab1f86/attachment.html>