HANDBOOK OF ACOUSTICS - online book

A complete view of Acoustical Science & its bearings on music, for musicians & music students.

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FLUE-PIPES AND REEDS.
117
Clarinet is a cylindrical stopped pipe, and therefore its tones consist of only the odd partials.
The Oboe and Bassoon are conical stopped pipes, and their partials follow the ordinary series.
In instruments, with cupped mouth pieces, such as the French Horn, Trumpet, &c, the lips of the player form the reed. Changes of pitch were originally brought about, by successively developing their different harmonics. Their partials belong to the complete series.
The Human Voice is essentially a reed instrument (the Vocal Ligaments or Chords) with a resonator (the Mouth, Pharynx, and Nasal Cavities) attached. The Vocal Ligaments originate a com­pound tone, rich in partials, the relative intensities of which are profouLdly modified by the ever varying resonator, thus producing the almost infinite variety in quality of tone, which is characteristic of the Human Voice.