There is a minor artefact in the final file. The stitched .m4a sometimes contains silent padding at the start or end from incomplete chunks at buffer boundaries. A quick ffmpeg pass fixes it cleanly:
Sponsors have been able to download OS 8.1.1 release candidates since last week, so if getting things before anyone else is important to you, consider sponsoring us on GitHub
，推荐阅读服务器推荐获取更多信息
Pallab GhoshScience Correspondent
Most accurate position tracking tool: This tool