The Audio Speed Changer app allows you to change the speed (tempo) and pitch of music independently.
Change the tempo and pitch of music.
Convert multiple files or your whole music collection with the built-in batch conversion tool using multiple process cores (multi-threading).
Import audio from many formats such as mp3, wav, flac, mp4, avi, mkv, m4a, and many more.
Support for multiple audio output formats such as mp3, m4a (aac), flac (lossless), and wav (lossless).