I coded this last summer. It is comparator of mp3 coding quality. So basicly a tool to compare encoders. It comes together with tutorial on the webpage in the folder. However you have to guess images as google drive doesnt allow for direct images link sharing. Or download the webpage with pics into one folder. There is exe, o, and there is a source code either. Also some literature is included, enough to make your own decoder.
Have fun.
Mp3ext - Google Drive
Have fun.
Mp3ext - Google Drive