What's New

This app has been updated by Apple to display the Apple Watch app icon.

- iPhone X improvements
- Bug fixes

App Description

Change your music's tempo and pitch in realtime quick and easy. Just select an audio file, mark the region you want to play (and loop/repeat) and change tempo and pitch on the fly.
It is also possible to export the changed audio file.
Use cases of Music Speed Changer are for instance: practicing guitar and other music instruments, transcriptions, change the speed of audiobooks...

Features:
- Change pitch and tempo (speed, time-stretch) independently
- Loop region
- Select region
- Filtering
- Import various formats including mp3, wav, m4a, ogg, aac, ...
- Export to wav and mp3
- Volume amplification
- Voice reduction
- Separate playing of left/right channels
- Import audio files from other apps to MSC
- Import from Dropbox *NEW*
- Send files by email *NEW*

APS Player: http://www.tequnique.com/apsplayer

Note:
- Extreme pitch and tempo changes (for instance 24 semi-tones, which is quite a lot!) can lead to noise.
- Voice reduction quality depends on the input. It works best with little compressed music and assumes that voice was recorded in mono and later mixed into the stereo channels (which is the case for a lot of music recordings)

iPhone Screenshots

(click to enlarge)

Music Speed Changer screenshot 1 Music Speed Changer screenshot 2 Music Speed Changer screenshot 3

iPad Screenshots

(click to enlarge)

Music Speed Changer screenshot 4 Music Speed Changer screenshot 5 Music Speed Changer screenshot 6

App Changes

  • June 13, 2014 Initial release
  • July 28, 2014 New version 2.6
  • September 11, 2014 New version 2.61
  • October 16, 2014 New version 2.62
  • January 27, 2015 New version 2.63
  • April 16, 2015 New version 2.64
  • January 25, 2016 New version 2.65
  • January 29, 2016 New version 2.66
  • June 15, 2019 New version 2.68