pjsua_set_no_snd_dev causes crash

[fedot.fedotov@xxxxxxxxx (Fedot Fedotov)]

maybe these methods help you
PJ_DECL(pj_status_t) pjmedia_aud_stream_stop(pjmedia_aud_stream *strm);
PJ_DECL(pj_status_t) pjmedia_aud_stream_destroy(pjmedia_aud_stream *strm);