YouTube Channel Audio Replacer

A Chrome extension that replaces audio from specific YouTube channels with a custom generator sound.

Features

• 🎵 Replaces YouTube video audio with generator sound for specific channels
• 🎯 Target multiple channels simultaneously
• ⚙️ Easy-to-use popup interface for managing target channels
• 🔄 Automatically detects channel changes while browsing YouTube
• 🔇 Mutes original video audio when playing generator sound

Installation

1. Add your generator sound file:

   • Place your generator sound file in the extension directory
   • Rename it to generator-sound.mp3 (or update the filename in manifest.json and content.js)

2. Create placeholder icons (optional):

   • Create or add icon files: icon16.png, icon48.png, icon128.png
   • Or remove the icon references from manifest.json temporarily

3. Load the extension in Chrome:

   • Open Chrome and go to chrome://extensions/
   • Enable "Developer mode" (top right corner)
   • Click "Load unpacked"
   • Select the youtube-generator folder

Usage

1. Click on the extension icon in Chrome toolbar
2. Enter the channel name or handle you want to target
   • Examples: "LinusTechTips", "@LinusTechTips", "MrBeast"
3. Click "Add Channel"
4. Navigate to YouTube and play a video from that channel
5. The extension will automatically:
   • Mute the video
   • Play the generator sound instead

How It Works

• The extension monitors YouTube pages for video playback
• When a video from a target channel is detected, it:
  • Mutes the video element
  • Plays the generator sound in a loop
• When you navigate away or switch to a different channel, the generator sound stops

Configuration

Changing the Generator Sound

Replace generator-sound.mp3 with your own audio file. Supported formats:

• MP3
• WAV
• OGG

Adjusting Volume

Edit content.js and modify the volume value (line ~29):

generatorAudio.volume = 0.7; // Change to value between 0.0 and 1.0

File Structure

youtube-generator/
├── manifest.json          # Extension configuration
├── content.js            # Main logic for detecting and replacing audio
├── popup.html            # Popup interface HTML
├── popup.js              # Popup interface logic
├── generator-sound.mp3   # Your generator sound (add this file)
├── icon16.png           # Extension icon 16x16 (optional)
├── icon48.png           # Extension icon 48x48 (optional)
├── icon128.png          # Extension icon 128x128 (optional)
└── README.md            # This file

Troubleshooting

Extension not working:

• Make sure you've added at least one channel in the popup
• Check the browser console for errors (F12 → Console)
• Verify the channel name matches exactly

Generator sound not playing:

• Ensure generator-sound.mp3 is in the extension directory
• Check that the audio file is not corrupted
• Try a different audio format

Icons not showing:

• Create simple PNG files for the icons
• Or remove icon references from manifest.json

Notes

• The extension only works on YouTube.com
• It uses YouTube's channel name/handle for matching
• Multiple channels can be targeted simultaneously
• The generator sound loops continuously while video is playing

License

Free to use and modify for personal use.