AutoGain ‐ making the sound quiter leads to auto adjust volume to same level as it was - wwmm/easyeffects GitHub Wiki

  1. Open in Firefox a Youtube video (or any site with a sound).
  2. Set the volume to 100%. Hear the sound.
  3. Adjust volume to 40% and after a few seconds it will automatically adjust the volume to about same level it was at 80%.

It happens back way as well: setting 100% rises volume up and than it lowers it...

I'm using this preset: https://github.com/JackHack96/EasyEffects-Presets/blob/master/Advanced%20Auto%20Gain.json