YouTube Volume Normalizer by むらひと
Automatically normalizes YouTube volume to the standard -14 LUFS. Features ISO 226:2023 loudness correction and a 2x oversampled ADAA limiter for distortion-free audio. Powered by WebAssembly for high-precision, professional-grade sound processing.
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Extension Metadata
About this extension
YouTube Volume Normalizer is an advanced audio processor that automatically adjusts YouTube volume to provide a consistent and optimal listening experience.
It unifies the fluctuating volume levels across different videos to the industry standard -14 LUFS (ITU-R BS.1770-5). Say goodbye to volume jumps between videos or straining to hear quiet dialogue.
[Key Features]
It unifies the fluctuating volume levels across different videos to the industry standard -14 LUFS (ITU-R BS.1770-5). Say goodbye to volume jumps between videos or straining to hear quiet dialogue.
[Key Features]
- High-Precision Auto Gain Control (AGC):
Smoothly adjusts volume to the target level. Choose from three algorithms to suit your content:- Digital (Standard): Transparent and fast control that preserves the dynamics of music like classical (Tisserand algorithm).
- WDRC (Speech): Optimized for speech clarity, based on hearing aid technology (Sokolova algorithm).
- Analog (Vintage): Natural, musical leveling inspired by optical compressors like the LA-2A (Yu algorithm).
- ISO 226:2023 Loudness Correction:
Based on the latest equal-loudness contours, this feature automatically compensates for the loss of bass and treble perception at lower volumes. Enjoy rich, balanced sound even during late-night viewing. - Professional-Grade Signal Processing:
- WebAssembly (Wasm): All audio processing is performed with double-precision floating-point (
f64) accuracy, ensuring zero quality loss. - ADAA Limiter: Features 2x Oversampling and 2nd-order ADAA (Antiderivative Antialiasing) technology. This eliminates digital clipping and distortion, even during sudden loud peaks.
- WebAssembly (Wasm): All audio processing is performed with double-precision floating-point (
- Native Integration:
Easily toggle the effect and adjust settings via a seamless button integrated directly into the YouTube player interface.
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Permissions and data
Required permissions:
- Block content on any page
- Access your data for sites in the youtube.com domain
Optional permissions:
- Access your data for sites in the youtube.com domain
- Access your data for sites in the googlevideo.com domain
Required data collection, according to the developer:
- Location
Optional data collection, according to the developer:
- Technical and interaction data
More information
- Version
- 3.2.0
- Size
- 28.49 KB
- Last updated
- 14 days ago (Jan 20, 2026)
- Related Categories
- License
- MIT License
- Version History
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