What is the Audio Speed Changer?
Make a lecture or voice note faster to save time, slow down a song to learn it, or create sped-up and slowed versions of music. The Audio Speed Changer handles any speed from 0.5× to 2×.
With Keep original pitch on, voices stay natural (no chipmunk sound). Turn it off to get the classic tape effect where faster also means higher – great for “sped up” and “slowed” edits.
How to use the Audio Speed Changer
- Choose an audio or video file.
- Pick a speed with the slider or a preset.
- Choose whether to keep the pitch, preview and download.
Popular speeds
- 1.25×–1.5× – lectures, audiobooks and podcasts.
- 0.75× – learning songs, languages or dictation.
- 1.3× without pitch – “sped up / nightcore” music.
- 0.85× without pitch – “slowed” music.
This Audio Speed Changer is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech