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Audio Change Bitrate

Re-encode audio to a new bitrate while keeping the same format

Click to upload file or drag and drop file here

Maximum file size: 60MB Supported formats: audio/mpeg, audio/aac, audio/mp4, audio/x-m4a, audio/ogg, audio/opus

Key Facts

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

Overview

The Audio Change Bitrate tool re-encodes audio files to a new bitrate while keeping the original format, allowing you to adjust file size and quality for various needs without converting to a different audio type.

When to Use

  • •When you need to reduce audio file size for storage or bandwidth savings.
  • •When adjusting audio quality to meet specific platform or device requirements.
  • •When standardizing bitrates across multiple audio files for consistency.

How It Works

  • •Upload an audio file in a supported format like MP3, AAC, or OGG.
  • •Select the target bitrate from options such as 96 kbps to 320 kbps.
  • •Optionally configure sample rate, audio channels, and metadata retention.
  • •Process the file and download the re-encoded audio with the new bitrate.

Use Cases

Podcasters compressing episodes for easier hosting and distribution.
Musicians preparing tracks for streaming platforms with specific bitrate guidelines.
Content creators optimizing audio files for web use to improve loading times.

Examples

1. Reduce Podcast File Size for Hosting

Podcaster
Background
A podcaster records episodes in high-quality MP3 but needs smaller files for uploading to a hosting service with storage limits.
Problem
Large audio files slow down uploads and consume excessive storage space.
How to Use
Upload the MP3 file, select a target bitrate of 128 kbps, and keep metadata to preserve episode details.
Outcome
The episode is re-encoded to a smaller file size, enabling faster uploads and reduced storage usage.

2. Standardize Bitrate for Music Library

Music Enthusiast
Background
A user has a collection of audio tracks in varying bitrates and wants consistent quality for playback on a portable device.
Problem
Inconsistent bitrates lead to uneven audio quality and potential compatibility issues.
How to Use
Upload each track, choose a target bitrate of 192 kbps, and set sample rate to auto to maintain original settings.
Outcome
All tracks are re-encoded to a uniform bitrate, ensuring consistent audio quality across the library.

Try with Samples

audio, video, 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 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
Copyright-Free OPUS Audio Samples
Next-generation OPUS audio samples with superior compression and quality, featuring nature sounds and meditation music optimized for modern streaming
title token audio
audio

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FAQ

What audio formats can I upload?

Supported formats include MP3, AAC, M4A, OGG, and Opus.

How does changing the bitrate affect audio quality?

Lower bitrates reduce file size but may decrease quality, while higher bitrates preserve more audio detail.

Can I keep the original metadata like song titles?

Yes, enable the 'Keep Metadata' option to retain ID3 tags and other information.

What is the maximum file size allowed?

Audio files up to 60 MB are supported.

Is any software installation required?

No, this is a web-based tool that runs directly in your browser.

API Documentation

Request Endpoint

POST /en/api/tools/audio-change-bitrate

Request Parameters

Parameter Name Type Required Description
audioFile file (Upload required) Yes -
bitrate select Yes -
sampleRate select No -
channels select No -
keepMetadata checkbox No -

File type parameters need to be uploaded first via POST /upload/audio-change-bitrate 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-change-bitrate": {
      "name": "audio-change-bitrate",
      "description": "Re-encode audio to a new bitrate while keeping the same format",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-change-bitrate",
      "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]