MP3 Tempo Changer is a program that allows you to change the speed of any audio file. The program lets you slow down or speed up an audio track without modifying the pitch. It also work as an audio converter, with the ability to transform MP2, OGG, MP1 OGG, WMA, APE, FLAC, WAV, WV, MIDI, AAC, M4A, and AIFF files into MP3.
The program has an interface that looks clean and is very easy to work with. You can add individual tracks to the conversion list by browsing your PC, and it is possible to add a folder containing multiple files. Optionally, you can just drag and drop files into the program window.
Once your files are loaded, changing the tempo, and optionally the pitch, is as easy as it gets; you only need to move the sliders to the desired level. Thanks to the audio player included, you can listen to the results in real time while playing with the tempo/pitch levels. You can also select a segment of your track by entering the start and end time and repeat it as many times as you want.
In addition to that, the application is capable of processing a bunch of files in a single operation. Additional conversion options include the possibility of changing the sound quality, renaming your files, and copying MP3 tags.
All in all, MP3 Tempo Changer is an application that works as expected; it is very easy to use, has a user-friendly interface, supports batch conversions, and offers a bunch of interesting features to work with audio files of different formats.