Echo and noise cancellation using webrtc

[akshi atoliya]

Hi,

We are using pjsip integrated with third_party webrtc_aec3 for Voip phone implementation. But its noise and echo cancellation doesn't seem to be very effective. Whenever there is a change in audio input device (We have 2 mic inputs and 2 speaker outputs), there is echo for initial 10-20 seconds along with noise. It takes around 10-20 seconds to reduce the noise and echo. Can anyone suggest ways so that webrtc's full potential (while being integrated with pjsip) could be used ?