Help. How to evaluate a Mp3's quality? Like noise existed in the f 2012-04-16 12:00:48 As mentioned in the title.Now I am evolving into a project. In this project, we have a 128kbps mp3 library and we need to find which files have the inferior quality, such as noise existed, volume is too small etc.Any advice? It would be better if someone know some open-source project which already has the ability to detect the mp3 files with bad quality.many thanks.