Tailwave
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How to speed up or slow down audio without changing the pitch

Slow a solo down to learn it, speed up a lecture, or fit a voice-over to a video. Tailwave can change the tempo and the pitch separately, or both together.

Change the tempo

  1. Open the editor, drop in your file, and select what to change (Ctrl+A for all of it).
  2. Choose Effect › Change tempo…
  3. Set the change in percent: +25% plays a quarter faster, −20% a fifth slower. The pitch stays where it is.
  4. Preview, apply and export. Audio after the selection moves to fit the new length.

The three tools

Just listening slower?

The playback rate menu next to the play button (0.5× to 2×) changes how fast you hear it without changing the audio itself.