An IC up-down counter controller for a programmable attenuator |
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| Authors: | Lawrence L. Feth Michael J. Donohue |
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| Affiliation: | 1. Department of Audiology and Speech Sciences, Purdue University, 47907, West Lafayette, Indiana
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| Abstract: | A simple up-down counter is used to control a programmable attenuator. This controller reduces the load on a minicomputer or other solid state circuitry when the attenuator is used for adaptive testing in psychoacoustics. Circuit diagrams for the controller and an auxiliary display driver are given, and some applications are discussed. |
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