There is a popping sound when converting RTMP to WebRTC for playback.

**Description**
Push the stream using RTMP and play it using WEBRTC with zilazila sound.
It seems that this issue has been resolved in this pull request, but it still exists in version 4.0: https://github.com/ossrs/srs/pull/1969/commits/ea318b53ef8251273c21ae7a8e21b30a211f2a4e

`TRANS_BY_GPT3`