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About

Change audio speed online with pitch preservation

Listen to long voice notes, lectures, or interviews faster, or slow down complex pronunciations for study. Audio tempo is adjusted smoothly without cartoonish pitch distortion.

How to use Change Audio Speed

  1. Select an audio or video clip.
  2. Pick an audio playback rate from 0.75x to 2.0x.
  3. Click Change Audio Speed.
  4. Download your re-timed audio track.
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Frequently Asked Questions

Does increasing speed make voices sound high-pitched ("chipmunk")?
No. Modern time-stretching algorithms preserve natural vocal pitch regardless of speed acceleration.
Accepted formats: MP4, WEBM, MOV, MKV, MPEG, WAV, OGG, WEBM, MP4