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Science 10 November 1961:
Vol. 134. no. 3489, pp. 1519 - 1520
DOI: 10.1126/science.134.3489.1519
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Articles

Humming: A Vocal Standard with a Diurnal Variation

Leonard Rubenstein 1

1 Allan Memorial Institute, McGill University, Montreal, Quebec

The process of humming can be used as a basal vocal measurement which can be repeatedly obtained with an accuracy comparable to that of other physiological variables. Studies have shown a diurnal fluctuation of the hum frequency. Data were collected by employing automatic telephone-answering equipment.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)