MP3 Speed is a freeware which changes the speed of mp3 files.
Modify MP3 speed changing both tempo and pitch.
Modify MP3 speed without changing pitch.
Speed up audiobook to save drive size and listening time.
Slow down MP3 file to make the speaking slowly and clealy.
Make your own editions of quickening tempo and slow tempo music.
Support batch processing.
Incredibly fast and fully optimized for multiprocessor/multi-core systems.
On-the-fly converting, no temporary file generated.
Windows Explorer-Style user interface, very easy to use.
Support drag drop.
Search, add and manage the files to convert with ease.
Build-in latest Lame MP3 encoder which is generally believed as the the best MP3 encoder.
Windows Vista compatible and works with Windows 7 (32-bit and 64-bit).