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audio level check with ffmpeg
I’m looking to write a script that will check the audio mic level of my mpeg recordings. If there a way to have ffmpeg report the audio level (in dB for example)on a frame-by-frame basis so my script can verify the audio level?
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1 Reply
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I use SoX for this operation.
https://sox.sourceforge.net/A command like:
$ sox $INPUT -n stats 2> stats.txt…will give you a lot of useful data. I found that you get quite inaccurate results on some recordings due to subsonic non-vocal frequencies.
You can also use SoX to filter these out such as:
$ sox $INPUT -n -D highpass 100 stats 2> stats.txtLet me know if this helps.
Michael
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