Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 593
leswere introduced onthe lines of the vi-brational figure, asin Ficr. 391. If a fundamentalM wave, with its five Fig. 392. upper partials vary-ing in amplitude as the wave-length, be added geometrically,the resulting curve (Fig. 392) is seen to bear a very close re-semblance to Fi^. 391. Helmholtz… … QUALITY OF VOCAL SOUNDS. 583 518. Quality of Vocal Sounds. — The different qualities ofvocal sounds are determined chiefly by the form of the glottisand the tension of the vocal cords, but the intensity of theovertones is considerably modified by the resonance whichtakes place in the cavity of the…
Physics
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