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Audio Speed Up

Speed up audio playback without changing pitch

Click to upload file or drag and drop file here

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

Key Facts

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

Overview

Speed up audio files without altering pitch using this online tool. Upload your audio, adjust the speed factor, and download the modified file in your preferred format for faster playback.

When to Use

  • •When you need to listen to long audio content like podcasts or audiobooks in less time.
  • •For audio editing projects where you want to shorten the duration without changing the tone.
  • •To quickly review recorded lectures or meetings by increasing playback speed.

How It Works

  • •Upload your audio file in a supported format such as MP3, WAV, or AAC.
  • •Set the desired speed factor between 1.01 and 4.00 to control playback speed.
  • •Choose an output format from options like MP3, FLAC, or OGG.
  • •Process the file and download the sped-up audio.

Use Cases

Listening to podcasts or audiobooks at an accelerated pace to save time.
Editing audio tracks for videos or presentations to fit shorter timeframes.
Studying by speeding up lecture recordings to cover more material efficiently.

Examples

1. Speed Up Lecture Recordings

Student
Background
A student has recorded lectures that are too long to review before an exam.
Problem
Need to listen to lectures quickly without missing key information due to pitch changes.
How to Use
Upload the lecture audio file, set a speed factor of 1.5, and choose MP3 as the output format.
Example Config
{"speedFactor": 1.5, "outputFormat": "mp3"}
Outcome
The lecture plays 1.5 times faster, saving time while maintaining clear audio.

2. Shorten Podcast Episodes

Podcast Listener
Background
A busy professional wants to catch up on multiple podcast episodes during a commute.
Problem
Episodes are too long to finish in the available time.
How to Use
Upload each podcast episode, increase the speed to 2.0, and download in AAC format.
Example Config
{"speedFactor": 2.0, "outputFormat": "aac"}
Outcome
Episodes play twice as fast, allowing more content to be consumed in the same duration.

3. Accelerate Audio for Editing

Background
An audio editor needs to shorten a track for a video without re-recording.
Problem
The original audio is too long and must be sped up to match video timing.
How to Use
Import the audio file, set a speed factor of 1.26, and export as WAV for high quality.
Example Config
{"speedFactor": 1.26, "outputFormat": "wav"}
Outcome
The audio is now 1.26 times faster, fitting perfectly into the video timeline.

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 formats can I upload?

You can upload any audio file type, including MP3, WAV, AAC, and more.

Does speeding up audio change the pitch?

No, this tool increases playback speed while keeping the original pitch unchanged.

What is the maximum speed factor?

The speed factor can be set up to 4.00, meaning audio can play up to four times faster.

Can I slow down audio with this tool?

No, this tool is designed only for speeding up audio. The minimum speed factor is 1.01.

Is there a file size limit?

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

API Documentation

Request Endpoint

POST /en/api/tools/audio-speed-up

Request Parameters

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

File type parameters need to be uploaded first via POST /upload/audio-speed-up 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-speed-up": {
      "name": "audio-speed-up",
      "description": "Speed up audio playback without changing pitch",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-speed-up",
      "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]