I have a lot of audiobooks I would like to batch convert to 1.5X speed but the only software I have found/tried (Cute mp3 Cutter) is limited to < 100 minute tracks and can only process one at a time. Does anyone know of a free or cheap solution?
Audacity should do it in a batch, under "Effects" use Change Tempo and apply to the files you want.Also it does not have the 100 minutes limit, and it is free. File->Import->Audio Import your files as a batch, select all by pressing Ctrl. Press Ctrl+A (or Edit->Select->All) Effect->Change Tempo; Here adjust the tempo that you'd like. File->Export Multiple . Choose The format,you can also click "Options" to chagne bitrate; -Choose a folder to export the new mp3s. If you choose the same folder as the source, make sure you untick "Overwrite existing files". Audacity will append a #2 at the end of the new tracks.
Cyprusrom - Thanks! That is a little time consuming (about 3 min per 30 min track) but much better than splitting and joining. Thanks for your help.
