Speed Up, Slow Down or Transpose Audio
Slow down a song to learn it on an instrument, speed up a lecture or a podcast, or transpose a backing track to a key that suits your voice. Speed changes from 0.5× to 2× keep the pitch.
The pitch can be shifted by up to 12 semitones up or down without changing the length. Both can be combined. Files are deleted from our server automatically after 48 hours.
Why Use This Tool?
- Speed from 0.5× to 2× without changing the pitch
- Pitch from −12 to +12 semitones without changing the length
- Works with MP3, WAV, M4A, FLAC, OGG and the sound of videos
- Free, no registration, no watermark
How to Change Speed and Pitch
- Select or drag your audio file into the upload area
- Set the speed and the pitch
- Click "Apply and download"
Frequently Asked Questions
Is this tool free?
Yes, it is completely free, with no registration and no watermark.
Will the voice sound higher when I speed it up?
No. The speed is changed without changing the pitch. To change the pitch, use the separate pitch slider.
Which formats are supported?
MP3, WAV, M4A, OGG, FLAC, AAC, Opus, WMA, AMR and videos (MP4, MOV, MKV, WebM, AVI). The result is MP3, WAV, OGG or M4A.
Are my files safe?
Files are sent over an encrypted connection and deleted from our server automatically after 48 hours; you can delete them earlier in "Your files".