About this app
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 changes to an 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 ** Note ** Music files should be located in your MacOS "Music" document folder for best user experience. Files which are located outside this folder can lead to "File open" errors.
Latest release
What’s New
Bug fixes.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Oct 15, 2026 · 4:16 PM $1.99