[FFmpeg-devel] [PATCH v3] doc/filters: Add double-pass example for loudnorm

[Gyan Doshi]

On 21-08-2018 03:18 AM, Marvin Scholz wrote:


> + at example
> +ffmpeg -i input -af loudnorm=I=-23:TP=-1:measured_I=-9.0:measured_TP=1.5:measured_LRA=9.4:measured_thresh=-19.5:print_format=summary output

Since your input LRA is 9.4, and output LRA is 7 (default), the filter 
will upsample to 192 kHz. You should resample afterwards.

If we publish this, it will generate support queries as to why our 
example produces "silent" files.

Thanks,
Gyan