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Change the Speed of Audio

Change audio playback speed with or without changing pitch.

Input:
MP3, WAV, M4A, OGG
Output:
MP3, WAV
Max size:
100 MB
Runs:
On secure servers

What the Audio Speed Changer does

Speed up lectures and podcasts or slow down music for practice, from 0.25× to 4×. Keep the original pitch so voices sound natural, or let the pitch change with the speed.

Options

  • Speed (0.25×–4×).
  • Keep original pitch.

How to use the Audio Speed Changer

  1. 1

    Drag your MP3, WAV, M4A, OGG file into the upload area, or click it to browse your device.

  2. 2

    Adjust the options to suit your needs — the defaults work well for most files.

  3. 3

    Click “Run Audio Speed Changer” to start processing.

  4. 4

    Preview the result, then download it. Batch results can be downloaded together as a ZIP.

Supported formats

  • MP3 is the most compatible lossy audio format. More about the MP3 format.
  • WAV is uncompressed audio, ideal for editing but large in size. More about the WAV format.
  • M4A is AAC audio in an MP4 container, common on Apple devices.
  • OGG is an open container usually holding Vorbis or Opus audio.

Frequently asked questions