Dual Function Generator is a simple Windows interface program allowing your computer to generate two audio waveforms simultaneously using the PC sound card. The program is a Windows soft panel operating as a dual channel function generator. The useful frequency of operation is from 2 Hz to 20000 Hz. The program uses the computer sound card to generate the audio waveforms. The main features of the program are simultaneous two channel operation, separate output volume for each channel, left, right, or stereo output for each audio waveform, and generation of Sine waves, Square waves, Triangle waves, Noise, Positive ramp, and Negative ramp.