[FFmpeg-user] Question about merging audio and soundless video files

JD jd1008 at gmail.com
Tue Mar 5 17:59:15 EET 2019

The audio file is recorded at bitrate 320k.
But after combining the audio and the video,
and running ffprobe, it shows that the audio
bitrate is 128k.
So, why would ffmpeg downgrade the audio bitrate?

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