Changes between Initial Version and Version 1 of Ticket #9352


Ignore:
Timestamp:
Jul 29, 2021, 11:11:47 PM (5 years ago)
Author:
Gregory Beauregard
Comment:

Legend:

Unmodified
Added
Removed
Modified

  • Ticket #9352 – Description

    initial v1  
    11Summary of the bug: The loudnorm filter can badly goof the integrated loudness in certain situations (e.g. particular noise after a resample) resulting in significant distortion if attempting to use it.
    22
    3 Using the attached file `loudnorm_samp.mkv` (4.7 MB), 48 kHz DTS-HD, analyze the loudness with loudnorm to get integrated loudness ~-21: `"input_i" : "-21.57"`:
     3Using the reproducer file at [https://stream.gably.net/images/loudnorm_samp.mkv], `loudnorm_samp.mkv` (4.7 MB), 48 kHz DTS-HD, analyze the loudness with loudnorm to get integrated loudness ~-21: `"input_i" : "-21.57"`:
    44{{{
    55ffmpeg -i loudnorm_samp.mkv -af aresample=ocl=stereo,loudnorm=print_format=json -f null -