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- W2035153032 abstract "An experimental pitch-detection system is described based on harmonic measurement. Early work demonstrated that if a particular harmonic could be separated and identified, an accurate measurement of the fundamental was possible. A recent proposal by Schroeder [J. Acoust. Soc. Am. 43, 375–377 (1968)] based on “period-histogram” measurements, gives a relatively simple means of determining the harmonic relation between speech components as separated by narrow-band filters. A period translator converts the essentially sinusoidal wave from each filter to a pulsed wave train of related period but with controllable phase. The pulses are weighted and summed together at a common point with an initial zero phase relation determined by a sampling pulse. A measure of the position of the first major maximum of the combined waves gives the value of the fundamental period. Experimental results indicate that accurate pitch measurement is possible with a limited number of channels even if the fundamental component of speech is missing. Amplitude-weighting information from the narrow-band filters can also be used as spectrum information in a channel-type vocoder thus reducing the total amount of equipment required." @default.
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- W2035153032 date "1968-07-01" @default.
- W2035153032 modified "2023-09-25" @default.
- W2035153032 title "Pitch Determination by Measurement of Harmonics" @default.
- W2035153032 doi "https://doi.org/10.1121/1.1970723" @default.
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