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Missing fundamental
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The missing fundamental phenomenon is the perceptual phenomenon of hearing a pitch corresponding to the lowest harmonic when presented with sound made of a set of frequency multiples, even when it is
The bottom waveform is missing the fundamental frequency, 100 hertz, and the second harmonic, 200 hertz. The periodicity is nevertheless clear when co
The bottom waveform is missing the fundamental frequency, 100 hertz, and the second harmonic, 200 hertz. The periodicity is nevertheless clear when compared to the full-spectrum waveform on top.
J. C. R. Licklider
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Joseph Carl Robnett Licklider, known simply as J. C. R. or "Lick", was an American psychologist and computer scientist who is considered to be among the most prominent figures in computer science deve
Missing fundamental
…that would have masked these distortions had they been present, listeners still heard a pitch corresponding to the missing fundamental, as reported by J. C. R. Licklider in 1954. It is now widely accepted that the brain processes the information present in the overtones to calculate the fundamental frequency. The precise…
Portrait of J. C. R. Licklider
Portrait of J. C. R. Licklider
A SAGE operator's terminal
A SAGE operator's terminal