Audio Speed Changer Pro

Audio Speed Changer Pro lets you to speed up audio files without changing the pitch. It is primarily intended for accelerating audio books as well as podcasts, but can be surely used with any other sound track or file. The batch processing feature and convenient user interface make Audio Speed Changer Pro a valuable tool for book listeners and authors who want to save time.

With the help of this program you can tune the different tempo, pitch, and even the playback rate for separate files in the list. You may use it also for transcoding audio -- configurable output to MP3, OGG, PCM/WAV, and AAC/MP4 file formats is supported. Converted audio will be available for speed-listening on your PC, Smartphone, iPod, and any portable MP3 player.

Extra options include tag editing, a downmixing to mono option, and the ability to normalize volume. Audio Speed Changer Pro supports drag-and-drop and can be integrated into the Windows Explorer shell for quick access to its major functions.