A Method for Qualifying Recorded Tone Bursts
This paper describes a circuit philosophy for qualifying properly recorded tone bursts on tape recordings. More specifically, these bursts, recorded on a control track accompanying audio material, are used to synchronize various events in a low cost audio visual machine. The circuit checks three important parameters of each burst: amplitude, duration, and frequency, and displays the total of all correct bursts. A block diagram and design philosophy will be covered.
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