Clipping with dynamic volume normalisation

[roderickvd]

^{Originally posted by acid-sun January 10, 2022}
I have some sound problem with new type (dynamic) volume normalisation. Sound clipping.

1. Track: Fast Flux - Zealous.
   [2022-01-10T14:06:56Z INFO librespot_playback::player] (141606 ms) loaded
   [2022-01-10T14:06:56Z WARN librespot_playback::player] This track will at its peak be subject to 2.93 dB of dynamic limiting.
   [2022-01-10T14:06:56Z WARN librespot_playback::player] Please lower pregain to avoid.
   [2022-01-10T14:06:56Z DEBUG librespot_playback::player] Normalisation Data: NormalisationData { track_gain_db: 2.933378219604492, track_peak: 0.7943402528762817, album_gain_db: 2.933378219604492, album_peak: 0.7943402528762817 }
   [2022-01-10T14:06:56Z DEBUG librespot_playback::player] Calculated Normalisation Factor for Track: 140.17%

2. Track: Lucien - Revasser
   [2022-01-10T14:10:14Z INFO librespot_playback::player] (209250 ms) loaded
   [2022-01-10T14:10:14Z WARN librespot_playback::player] This track will at its peak be subject to 6.20 dB of dynamic limiting.
   [2022-01-10T14:10:14Z WARN librespot_playback::player] Please lower pregain toavoid.
   [2022-01-10T14:10:14Z DEBUG librespot_playback::player] Normalisation Data: NormalisationData { track_gain_db: 6.802104949951172, track_peak: 0.7412295341491699, album_gain_db: 6.802104949951172, album_peak: 0.7412295341491699 }
   [2022-01-10T14:10:14Z DEBUG librespot_playback::player] Calculated Normalisation Factor for Track: 218.83%

I tried to upper threshold to 0 dBFS, but it did not ideal result. Earlier it was possible to specify threshold > 0.
If I switched to basic method, music played normal.

[roderickvd]

These are great reference tracks! I can confirm and will see what I can come up with.
For now I recommend that you set pregain to something like -5 or even -9 when listening to tracks with a wide dynamic range.