Opened 3 years ago
Last modified 3 years ago
#9613 new enhancement
add volumedetect filter support for >16bit audio
| Reported by: | chconnor | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avfilter |
| Version: | unspecified | Keywords: | normalize, loudness, normalization, filter, filtering, filters, volume, volumedetect |
| Cc: | chconnor, slhck | Blocked By: | |
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Running the volume detect filter on e.g. 32bit float audio does not work correctly because it converts internally to 16bit integer format (see docs: https://ffmpeg.org/ffmpeg-filters.html#volumedetect)
It would be great if the filter supported such audio files.
Change History (5)
comment:1 by , 3 years ago
| Cc: | added |
|---|
follow-up: 3 comment:2 by , 3 years ago
comment:3 by , 3 years ago
Yeah. In my case I was normalizing ~1700 files (convolution reverb impulse responses) most of which had peaks over 0 dBFS.
Floating point audio isn't too uncommon a thing to want normalize, and the reason to normalize it is often precisely because it can have peaks over 0 dBFS.
comment:5 by , 3 years ago
It is already available in astats filter, -af astats=measure_overall=Peak_level:measure_perchannel=0
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It would give no real benefits, unless you care for >0 dB samples.