ALL Sound Editor XP   
by MP3DO, Inc.   

All Sound Editor is a visual audio files editor. It can be used to build applications, that allow the end-user to perform various operations with audio data such as displaying a waveform image of an audio file, filtering, applying various audio effects, examining the frequency components and other details about your audio with the help of Frequency Analysis, Statistics, and Spectral View features, format conversion, etc.