Dear sound/audio folks and engineers,
I have a directory with 3.5GiB of audio files (chiefly opus & m4a) which are spoken word recordings.
Some of them are quite low, and some of them are quite dynamic such that it's a whisper at times and nearly a shout at other times.
I've processed a lot of them with #audacity's compressor filter or #ffmpeg (ffmpeg -i audio.m4a -filter:a "speechnorm=e=50:r=0.0001:l=1" audio-normalized.m4a), but there are some unprocessed files in the collection, which are a pain to individually find and fix.
Is there a way from the #CommandLine to detect the loudness and/or dynamic range of audio files so that I can automatically flag them for processing with ffmpeg?
Thanks!!
#audio #sound #SoundEngineering #AskFedi #HiveMind
R.L. Dane :Debian: :OpenBSD: 🍵 /
npub185…t8tc6
2025-04-23 23:58:40
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npub185unhqkrqs4736kk27mqn5z5ervnf0swy6dlwnzk7uhk86jg6r0set8tc6Published at
2025-04-23 23:58:40Event JSON
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"content": "Dear sound/audio folks and engineers,\n\nI have a directory with 3.5GiB of audio files (chiefly opus \u0026 m4a) which are spoken word recordings.\n\nSome of them are quite low, and some of them are quite dynamic such that it's a whisper at times and nearly a shout at other times.\n\nI've processed a lot of them with #audacity's compressor filter or #ffmpeg (ffmpeg -i audio.m4a -filter:a \"speechnorm=e=50:r=0.0001:l=1\" audio-normalized.m4a), but there are some unprocessed files in the collection, which are a pain to individually find and fix.\n\nIs there a way from the #CommandLine to detect the loudness and/or dynamic range of audio files so that I can automatically flag them for processing with ffmpeg?\n\nThanks!!\n\n#audio #sound #SoundEngineering #AskFedi #HiveMind",
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