Speed & Pitch Changer

Change the speed of your audio without changing its pitch, or change the pitch (the key) without changing its speed. Preview it and download it as MP3 or WAV.

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How to change the speed or the pitch of audio

SpeedMove Speed to make it faster or slower: 100% is the original, 200% is twice as fast and 50% is half as fast.
PitchMove Pitch to raise or lower the key in semitones. Twelve semitones are one octave, and a single semitone is about a 6% change in frequency.
Separate by defaultBy default the two are independent: you can speed up a podcast without making the voice sound like a chipmunk, or transpose a song to a singer's range without changing the tempo.
Change them togetherChoose Change them together for the effect of a record or tape played faster or slower. This is what Nightcore and slowed edits use, and then the pitch follows the speed.
Preview and downloadPress Play preview to hear 30 seconds with your settings, then download the whole file as MP3 or WAV.

Changes of up to about 25% in speed or a few semitones in pitch sound natural. Larger changes can add a slight echo or warble, and drums and other sharp sounds can lose some of their punch, so it is worth listening to the preview in the busiest part of the track. Voice and sustained music give the best results.

Changing the speed also changes the length of the file: at 125% a 4:00 track lasts 3:12. The tool shows the new duration before you download. If the changed audio would be louder than the maximum a file can hold, the volume is lowered just enough to avoid distortion.

More free audio tools

Fade In / Fade OutAdd a smooth fade in and fade out to any audio. Audio JoinerMerge several audio files into one track. Loop MakerTurn any part of a track into a seamless loop. Audio CutterTrim MP3, WAV, OGG, M4A and FLAC files. Audio SplitterSplit a long audio file into several parts. Reverse AudioReverse the audio so it plays from end to beginning. Trim SilenceTrim the silence at the start and end of your audio. Add SilenceAdd silence to the start or the end of a file.

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