Fade In/Out
Pitch Shift
Speed Changer
Volume Booster
Normalizer
Reverse Audio
Mono / Stereo
Audio Cutter

Audio Speed Changer

 
Before
After

ERROR：Upload file size must be under 10 MB. ERROR：No file selected.
 Browse Files
or
Drag & Drop files here

Converting...
Converting...
Convert for Free

Sample Before

＊Original Sound

Sample After

＊When the "Playback Speed" is set to "x1.2"
How to Use
  1. 1
    Choose Your Audio
    Click the "Browse" button or drag and drop an audio file onto the screen.
  2. 2
    Set Playback Speed
    In "Settings", set the multiplier for "Playback Speed".
  3. 3
    Convert
    Click the "CONVERT FOR FREE" button.
  4. 4
    Download
    Click the "DOWNLOAD" button.
  DataChef Features
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Unlimited conversions for free.
No technical knowledge required.
Intuitive and user-friendly operation.
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Available immediately after access.
Can be used without registering personal information.
Safe and Secure
Fully SSL encrypted communication.
Automatic file deletion by clicking "download".
Fast
High-speed site access
and rapid file conversion.
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No watermark.
No attribution required.
Commercial Use Available
Free for commercial use.
No need to contact us for commercial use permission.

This page lets you change the playback speed of an audio file online and save it back out — speed it up or slow it down, free.


Usage Examples
Slow down a foreign-language recording to a speed you can follow.
Speed up a recorded radio show so you can finish listening to it in less time.
Take a piano part you recorded slowly and bring it back up to the original tempo.


Supported file formats are MP3 and AAC (M4A/MP4).