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Audio Channel Swap

Swap the left and right channels of a stereo file

Exchanges the left and right audio channels in a stereo file. The left channel becomes the right channel and vice versa. Useful for correcting incorrectly recorded audio, testing stereo imaging, or creating special audio effects.

Click to upload file or drag and drop file here

Maximum file size: 200MB Supported formats: audio/*

Key Facts

Category
Media
Input Types
file, select
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

The Audio Channel Swap tool exchanges the left and right channels of a stereo audio file. It's designed for correcting recording errors, testing stereo setups, or creating audio effects by reversing channel positions.

When to Use

  • •When stereo audio has reversed channels due to incorrect recording or setup.
  • •To test and verify stereo imaging or speaker configurations in audio systems.
  • •For audio editing tasks that require manipulating channel order for creative effects.

How It Works

  • •Upload a stereo audio file in a supported format like MP3, WAV, or AAC.
  • •Select the desired output format from options such as MP3, FLAC, or OGG.
  • •The tool processes the file, swapping the left and right audio channels.
  • •Download the resulting file with the channels exchanged.

Use Cases

Correcting stereo audio recordings where left and right channels are accidentally reversed.
Testing audio equipment by swapping channels to diagnose speaker or headphone issues.
Creating panning or spatial effects in music production by manipulating channel order.

Examples

1. Fixing Reversed Podcast Channels

Podcaster
Background
A podcaster recorded an interview but later realized the left and right audio channels are swapped, causing an unnatural sound balance.
Problem
The swapped channels make the audio uncomfortable for listeners, with voices appearing in the wrong stereo field.
How to Use
Upload the podcast audio file and select MP3 as the output format to swap the channels back.
Outcome
The channels are corrected, restoring proper stereo balance and improving listener experience.

2. Verifying Studio Speaker Setup

Background
An audio engineer needs to ensure that left and right speakers in a studio are correctly identified and connected.
Problem
Uncertainty about whether audio routing is accurate, which could affect mixing decisions.
How to Use
Use a test tone file, apply the channel swap tool, and play the output to observe speaker responses.
Outcome
Confirmed correct speaker placement by detecting swapped audio, ensuring accurate monitoring.

Try with Samples

audio, file
Copyright-Free AAC Audio Samples
High-quality AAC encoded audio samples for testing and development, featuring nature sounds and meditation music with excellent compression
title token audio
audio
Copyright-Free MP3 Audio Samples
Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
title token audio
audio
Copyright-Free WAV Audio Samples
Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
title token audio
audio
Copyright-Free OGG Vorbis Audio Samples
Open-source OGG Vorbis audio samples for testing and development, featuring excellent compression with nature sounds and meditation music
title token audio
audio

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FAQ

What audio file formats can I upload?

You can upload any stereo audio file, as the tool accepts common formats like MP3, WAV, AAC, and more.

Can I swap channels in a mono audio file?

No, this tool only works with stereo files that have distinct left and right channels.

Is there a limit on file size?

Yes, the maximum file size is 200 MB per upload.

How long does the channel swap take?

Processing is typically quick, depending on file size and server load, usually completing in seconds to minutes.

Can I use this tool on mobile devices?

Yes, it's a web-based tool accessible from any modern browser on desktop or mobile.

API Documentation

Request Endpoint

POST /en/api/tools/audio-channel-swap

Request Parameters

Parameter Name Type Required Description
audioFile file (Upload required) Yes -
outputFormat select No -

File type parameters need to be uploaded first via POST /upload/audio-channel-swap to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-audio-channel-swap": {
      "name": "audio-channel-swap",
      "description": "Swap the left and right channels of a stereo file",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-channel-swap",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]