Audio Speed Changer
Speed audio up or slow it down without changing the pitch.
Runs on your device · no upload
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About Audio Speed Changer
Audio Speed Changer makes a recording play faster or slower between half speed and double speed, while the voice keeps its normal pitch. It is useful for lectures, podcasts and practising music. The file stays on your device.
1
Add your audio
Choose a file or record one. It is processed on your device.
2
Adjust and run
Pick your options, then tap the main button.
3
Download
Save the result. No watermark, no sign-up.
Frequently asked questions
Will the voice sound different?
No. The pitch is kept, so voices do not sound squeaky or deep.
What speeds are available?
From 0.5× (half speed) to 2× (double speed).
What format is the result?
An MP3 file at 192 kbps.
Are my files uploaded anywhere?
No. This tool runs in your browser, so your file stays on your device and is never sent to a server.