MP3 Speed is a free software for altering the speed of MP3 files while maintaining original pitch. It prevents distortion of the audio and is easy to use.

This software also allows users to create their own editions of music with quickening tempo and slow tempo options. MP3 Speed provides users with the opportunity to copy and save audio tags from source files to destination ones. It is capable of writing ID3v1, ID3v2 and APE MP3 tags.
Batch mode is supported, which can convert hundreds of MP3 files at once, making the process incredibly fast and fully optimized for SSE/Hyper thread technology. Furthermore, users with multi-core CPUs can benefit from extra speed boosts.
MP3 Speed uses the latest Lame MP3 encoder, generally known as the best MP3 encoder. It also supports on-the-fly converting, which means users won't experience temporary files during the conversion process.
With its Windows Explorer-Style user interface that supports drag and drop functionality, MP3 Speed is fairly intuitive to use. The software can easily search, add, and manage MP3 files to be converted, making the process a breeze.
Lastly, MP3 Speed is Windows 10 compatible and works with Windows 7 (64-bit and 32-bit). So, if you're looking to change the speed of mp3 files without any quality loss, be sure to give MP3 Speed a try.
Version 5.5.3: Fixed some compatible issues with Windows 10 version 1803 and 1809.