Change the speed or pitch of audio
Make audio faster or slower with the pitch kept, or let it change like a tape. Nothing leaves your device.
- Runs on your device
- No sign-up
- Works offline after a visit
Speed
Off: the sound plays like a tape, so faster is higher and slower is lower.
Pitch
—Length before
—Length after
How to change the speed or pitch of audio
- Drop an audio file, or a video with sound, onto the box.
- Move the speed slider or tap a preset. Leave Keep the pitch ticked unless you want a tape effect.
- Play the result, then download it as a WAV file.
Questions
Does changing the speed change the pitch?
With Keep the pitch on, no: the tempo changes and the pitch stays where it was. Turn it off and the sound behaves like a tape, so faster is higher and slower is lower.
Is my audio uploaded?
No. The file is decoded, processed and saved again in your browser, so it never leaves your device.
What is the longest file this handles?
About 10 minutes. Longer sound is refused with a message, so cut it shorter first.
What format is the download?
A 16-bit WAV file. It plays in every browser and opens in most audio editors.
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