YouTube Pro: Audio Enhancer

人民的勤务员
2025-12-30T12:46:02Z

Cinema-quality sound with a professional 5-band EQ and multiband compressor. Remembers your settings!

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👆️access GitHub Readme file on the app for a better experience。

GitHubView the script for the orderlyGithub:@ChinaGodMan
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Recommended：

💡 Tip: The above list of script managers and browsers is not exhaustive
The script runs fine in the following environment

YouTube Pro: Audio Enhancer

「 Cinema-grade sound effects, equipped with professional-grade 5-band equalizer and multi-band compressor. It also remembers your settings. 」

Download:Github | ⭐Greasy Fork

🎧 YouTube Pro Audio Enhancer

one for YouTube playerAdvanced audio enhancement scripts created by，based on Web Audio API，Can enhance the low-frequency intensity of video with one click、Vocal clarity and overall loudness，Let ordinary videos have a more professional listening experience。

✨ Features

🔊 Low frequency enhancement（Sub Bass）
use Low Shelf Filter enhancement approx. 60Hz low frequency，Give music a deeper sense of depth。

🧹 Turbid band reduction（Mud Cut）
exist 250Hz Make cuts nearby，Reduce feeling of stuffiness，Make the sound cleaner。

🎤 Improved vocal clarity（Presence）
promote 2.5kHz sense of presence，Make vocals stand out more、clearer。

✨ High frequency brightness enhancement（Brilliance）
Enhance 8kHz High frequency above，Make the overall listening experience more transparent。

📈 dynamic compression（Compressor）
Balance volume dynamics，Reduce big and small problems，More stable hearing。

🔉 overall gain increase（Gain）
Without obvious distortion，Moderately increase overall volume。

🖱 Usage

exist YouTube A new one will be added in the lower left corner of the player 🎵 audio boost button

Just click the button turn on / Turn off audio enhancement

The button turns blue to indicate that enhancements are enabled for the current video

💾 state memory

The script will automatically record your switch status（localStorage）

After refreshing the page or switching videos，Will automatically restore the last open state

🔧 Technical implementation

use AudioContext Create an audio processing environment

pass createMediaElementSource() take over audio stream

Use multiple BiquadFilterNode + DynamicsCompressorNode Build an audio processing chain

With the help of MutationObserver and yt-navigate-finish event，adaptation YouTube of SPA Page switching

⚠ Things to note

Initial activation may require After playing the video To activate the audio context（Browser restrictions）

different devices / earphone / Speaker effects will vary

This script only takes effect locally，No audio data will be modified or uploaded

🚀 Applicable scenarios

🎶 music MV / live performance

🎧 podcast / Interview / Tutorial

📺 The volume is too low or the sound quality is average YouTube video

💻 Laptops with weak external sound quality

📜 License

MIT License
For study and personal use only，Please use it reasonably。

💖 The script refers to or uses the following script:

🧑‍💻 @beyazprens ⇒ 📜 youtube-pro-audio-ambient.user.js

Preview screenshot:

Help

Recommended browsers and script managers：

Greasemonkey + Waterfox

Tampermonkey/Violentmonkey + Firefox

Tampermonkey/Violentmonkey + Chrome

Userscripts + ios Safari

Violentmonkey/KiWiBrowser + Android

If you need to know more about how to install userscripts,click meView graphic teaching!