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7. On certain Effects of Periodic Variation of Intensity of a Musical Note

Published online by Cambridge University Press:  15 September 2014

Crum Brown  and
Tait
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Extract

Recent discussions as to the nature of vowel-sounds have led us to make experiments (partly with an apparatus constructed some years ago for the same purpose) upon the effect of a periodic variation of intensity of a simple tone.

It is obviously impossible to secure a simple harmonic variation, so we endeavoured to produce a displacement varying as

1 − cos mt.

An organ-pipe, giving a tone very free from harmonics, was sounded on one side of a partition in which were cut a series of large holes.

Type
Proceedings 1877-78
Information
Proceedings of the Royal Society of Edinburgh , Volume 9 , 1878 , pp. 736 - 737
Copyright
Copyright © Royal Society of Edinburgh 1878

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