AUDio MEasurement System – multi-platfrom system for audio measurement through a PC sound card. Incorporates generator, oscilloscope, audio spectrum analyzer (FFT) and frequency sweep characteristic. Can be compiled and works under Linux, Windows and MacOS.

Features:

• Display audio spectrum (FFT)
• Show wave form
• Generate tones
• Only requires a sound card
• Uses WxWidgets
• Source code available

sourceforge.net/projects/audmes/