Audio Speed Changer
Speed up a long lecture, slow down a song to learn it, or make a slowed version of a track.
Runs in your browser. Nothing is uploaded Free, no sign-up Works on mobile
Choose an audio file (MP3, M4A, WAV…)
or drag and drop here
How to use Audio Speed Changer
- Choose an audio file.
- Set the speed and choose whether to keep the original pitch. Use the preview to listen.
- Press Change speed and download.
Frequently asked questions
What does “keep the original pitch” do?
It changes the tempo without making voices sound higher or lower. Turn it off for the classic tape effect, where faster audio also sounds higher.
How do I make a “slowed” version of a song?
Set the speed to about 0.8× and turn off “keep the original pitch” for the deeper, slowed sound.
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