Soundfixer

This extension lets you fix annoying sound problems on the web (e.g. in YouTube videos): sound in one channel only, too quiet even at maximum volume, too loud even at minimum volume.

No more "Plug your headphones only halfway into the jack" :D

The popup controls are designed to quickly fix common audio issues:
- Mode: Selects the method for boosting the audio. Pure Gain applies a linear gain to boost quiet audio (can cause clipping if overused), and limiter uses a compressor to prevent clipping while boosting quiet audio (safer for loud sources).
- Gain: Increases or decreases the volume
- Pan: Shifts audio toward the left or right channel if sound is uneven
- Mono: Mixes left and right channels into a single centered signal (helpful when one channel is missing)
- Flip L/R: Swaps left and right channels when stereo channels are reversed
- Reset: Restores all controls to their default values

Unfortunately, this extension doesn't work on all websites — specifically, we're not allowed to use the Web Audio API from a cross-domain <audio> source. Thankfully, YouTube is not cross-domain!

Ported from Val Packett’s Firefox Extension "SoundFixer" (which isn’t available on Chrome), this release also migrates the extension from Manifest V2 to Manifest V3.