AuditiusChange audio speed online, pitch preserved
Make audio faster or slower while keeping its pitch. Choose a file, select a speed from 0.5× to 2×, listen to the result and download a new WAV.
- Free
- No install, no account
- Files never leave your computer
- English and Spanish
How to change the speed
The duration changes inversely to the speed: 2× halves it, while 0.5× doubles it. The original file is not modified.
- Choose an audio file.
- Select the speed; 1× keeps the original timing.
- Select Change speed, listen and download the WAV.
Time stretching without a chipmunk effect
The tool uses WSOLA time stretching rather than simply resampling the audio, so speech and music keep their original pitch at the new duration.
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- See more