Program turns PC sound card into a function generator

You can use a low-cost PC sound card as an analog-function generator by controlling the PC with the program `SoundArb.` [To obtain SoundArb, download di2409setup.exe, a 1.06-Mbyte self-extracting installation program.] The program generates standard waveforms, noise, and arbitrary waveforms. The program reads arbitrary waveforms from simple ASCII text files consisting of white-space-separated numbers. You can use a program such as Mathcad to create such files.


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