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How to change the speed or pitch of audio

Choose a sound file.
Set the speed and the pitch. Keep the pitch to speed up speech without it sounding odd.
Listen and download it as MP3, M4A or WAV.

For a video, use change video speed. Making it louder too? Try the volume booster.

Frequently asked questions

Can I change the speed without making voices sound like chipmunks?

Yes. Keep “Keep the pitch” ticked and the sound gets faster or slower at the same pitch.

Can I change the pitch without changing the speed?

Yes. Leave the speed at 1× and move the pitch up or down in semitones, for example to sing along in a different key.

What range does it cover?

Speed from half (0.5×) to double (2×), and pitch up or down 12 semitones, a whole octave.

Is my file uploaded?

No. It is changed in your browser and saved as MP3, M4A or WAV.