Chrome MV3 · Local audio processing
Tonvela
Balanced sound for every video.
Overview
Up to 400% volume, steady levels and a local speech filter. A fully local Chrome extension that boosts, levels and clarifies tab audio; your audio stays on your device.
What it does
It raises a video’s sound up to 400%, evens out the quiet and loud parts, and clarifies speech. Each tab is switched on separately, and closing the window keeps processing running.
The interface comes in English and Turkish, with dark, light and system themes and keyboard shortcuts.
Highlights
Up to 400% volume
A look-ahead peak limiter keeps boosted audio from clipping and distorting.
Steady levels
Keep volume steady: quiet parts come up, loud parts come down. Keep this level: capture what you are hearing as the target, with undo.
Six listening modes
Normal, Steady, Speech, Night, Music and an experimental Voice only, which suppresses the background with a local GTCRN model.
Stays on the device
Audio processing, models and settings stay on the device: no microphone access, no recording, no analytics and no cloud sync.
