src\webrtc_src\webrtc\modules\audio_coding\acm2
acm_codec_datebase.ccweb
#ifdef WEBRTC_CODEC_OPUS
// Opus internally supports 48, 24, 16, 12, 8 kHz.
// Mono and stereo.
{ 120, "opus", 4800, 960, 1, 32000 },
// {120, "opus", 48000, 960, 2, 64000},
#endif
尝试不一样的参数,看看编码器效果svg