Sawtooth Software

Test Tone Generator by Timo Esser

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.

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SigJenny by NaTCH Engineering

SigJenny turns your PC into a flexible and powerful signal generator for free. It generates numerous different waveshapes, can sweep them or arrange them as tone bursts, graphically display them, and do a very good impression of a police car!

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