Monkey's Audio is an audio compression tool that allows you to edit audio files keeping audio quality in the same terms you find them.
Regretfully it only supports WAV files, so we will have to keep searching for one supporting mp3 and the rest of audio formats. However, if you are planning to edit wav files, welcome to the perfect application.
The program compress and decompress audio files, verify them and even convert them to other formats from an understandable interface that won't have you moving from tab to tab, you can do everything from the main window.
Monkey's Audio offers really good results and a good number of options.
