A small audio test generator is very useful for quickly tracing a signal through an audio unit. Its main purpose is speed rather than refinement. A single sine-wave signal of about 1 kHz is normally ...

Using a Creative Labs Sound Blaster card output of a PC, SFG software implements an audio function generator. SFG generates sine, square, sawtooth, pulse and triangle-wave signals from 1 Hz to 20 kHz, ...