The Home Audiometer Hearing Test Windows software turns your PC into an audiometer, a machine you can use to test your hearing through a standard sound card and headphones.
This program generates signals to test loudspeakers with the help of a synchronised LED stroboscope. The only external hardware needed is a two channel amplifier and an LED flashlight.
The Test Tone Generator (TTG) turns the PC into a function generator for testing or demonstration, sound tuning, education, for sound effects and many other purposes.