Article: Program turns PC sound card into a function generator.(Statistical Data Included)

You can use a low-cost PC sound card as an analog-function generator by controlling the PC with the program "SoundArb." The program generates standard waveforms, noise, and arbitrary waveforms. The program reads arbitrary waveforms from simple ASCII text files consisting of whitespace-separated numbers. You can use a program such as Mathcad to create such files. SoundArb provides common triggering modes, such as continuous, one-shot, burst, and toggled. An on-screen "button" serves as the trigger input. The program's user interface is a dialogue-box-style control-panel window. (You can download the self-extracting installation program from EDN's Web site, www.ednmag. com. ...

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