Lossless Audio Checker - A utility to check whether an audio file is truly lossless or not.
AUDio MEasurement System - multi-platfrom system for audio measurement through sound card in the PC.
Spectro - Spectro is a freeware audio file analyzer for windows.
Real-time Spectrum - Real-time Spectrum is an analyzer software that is designed for RTSAs, Logic Analyzers, and Oscilloscopes.
Spek - Spek helps to analyse your audio files by showing their spectrogram.
Winscope - Winscope is a high-performance based oscilloscope software application designed for your PC that is used to display results and input waveforms.