How it works
- Upload your audio file (MP3, WAV, M4A or OGG).
- Set the speed, from 0.5x to 2x.
- Click Change Speed and download the result as an MP3.
What can you use this tool for?
- Speeding up a long recording or lecture to listen faster
- Slowing down speech or an instrument part to study it
- Adjusting a voiceover to fit a video's timing
- Making a podcast episode faster to save listening time
Useful details
- Accepts MP3, WAV, M4A and OGG audio files
- Speed can be set from 0.5x (half speed) to 2x, without intentionally changing the pitch
- The processed result is delivered as an MP3
- Processing happens on the server — nothing to install
FAQ
Can I speed up audio without changing the pitch?
Yes — the speed change is designed not to intentionally alter the pitch of your audio.
How much can I slow down or speed up audio?
You can choose any speed from 0.5x (half speed) to 2x (double speed).
Which audio formats are supported?
You can upload MP3, WAV, M4A or OGG files. The result is delivered as MP3.
Do I need to install software?
No — the speed change happens on the server. You only need a browser.
Will the file length change?
Yes — speeding audio up shortens its duration, and slowing it down lengthens it; the new duration is shown once processing is done.