Audio Speed Pitch Changer app changes the playback speed (tempo) and key (pitch) of music audio independently. This app is ideal for changing the playback speed or key for song transcriptions, instrumental training like piano, guitar, violine, flute, etc.

Real-Time audio speed and pitch adjustment - An audio speed pitch shifting app designed for musicians & singers. You can easily change the speed and pitch of audio files on your iPhone/iPad device either independently or at the same time. Useful for practicing fast songs, or those that need different tunings.


Simple controls and clear visuals make Up Tempo easy to use without compromising accuracy. Modify the frequency or tempo of your sound files by simply moving two sliders.

If you move the speed slider, your music will play in slow motion or faster. On the other hand, if you move the pitch slider, you will get a high-pitched or low-pitched audio.

Apply effects on your audio. By playing with the sliders, you can get a squirrel or evil voice. You can also export your adjusted song & share with friends or listening in another player.

Pitch change in semitones:
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A value smaller than zero means that the resulting key is lower than the original key (and vice-versa). A value of zero means that the key is not changed. One full step corresponds to one semitone. Decimals can be used for fine adjustments (for instance for non-western music styles). Example: a change of -12 semitones means that the song is played one octave lower.

Playback speed:
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A value smaller than 1.0 means that the speed is reduced while a value greater than 1.0 means that the playback speed is increased. A value of 1.0 means that the speed is not changed.

Features:
- Alter the pitch- change song pitch up or down
- Change the tempo - change audio speed.
- Support various formats of audio files.
- Play instantly with real-time audio speed and pitch adjustment.
- Export adjusted song in m4a format
- Save settings for use another time.
- Real-Time audio speed and pitch adjustment
- You can also save the adjusted audio file.