Elementary Lessons on Sound |
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Page 6
... ratio to this . The motions of a string thus fixed at its end and excited at some intermediate point , radiate from that point to the fixed extremities , whence they are reflected in the opposite direction 6 [ CHAP . ON SOUND .
... ratio to this . The motions of a string thus fixed at its end and excited at some intermediate point , radiate from that point to the fixed extremities , whence they are reflected in the opposite direction 6 [ CHAP . ON SOUND .
Page 17
... ratio of 9 to 25 , a rod vibrating with two nodes in the ratio of 9 to 49 , one with three nodes in that of 9 to 81 , and so on . A rod supported at one end gives a number of vibrations in inverse ratio to the square of its length . It ...
... ratio of 9 to 25 , a rod vibrating with two nodes in the ratio of 9 to 49 , one with three nodes in that of 9 to 81 , and so on . A rod supported at one end gives a number of vibrations in inverse ratio to the square of its length . It ...
Page 19
... ratio of 4 to 25 . The upper partials are not much required , the first mode of vibration being that commonly utilized . These vibrations of rods rise to their highest musical character c 2 1. ] 19 MODES OF PRODUCTION OF SOUND .
... ratio of 4 to 25 . The upper partials are not much required , the first mode of vibration being that commonly utilized . These vibrations of rods rise to their highest musical character c 2 1. ] 19 MODES OF PRODUCTION OF SOUND .
Page 22
... ratio 15 : 1. So that a tuning - fork made of brass would be about a fifth lower in pitch that if the material were steel . " -- Lord Rayleigh , Theory of Sound , p . 220 . possesses another property which is extremely valuable for ...
... ratio 15 : 1. So that a tuning - fork made of brass would be about a fifth lower in pitch that if the material were steel . " -- Lord Rayleigh , Theory of Sound , p . 220 . possesses another property which is extremely valuable for ...
Page 25
... ratio to their linear extension , we enter upon the study of the beau- tiful figures named after their discoverer Chladni , and sub- sequently investigated by Wheatstone . Chladni's method of investigation consisted in supporting plates ...
... ratio to their linear extension , we enter upon the study of the beau- tiful figures named after their discoverer Chladni , and sub- sequently investigated by Wheatstone . Chladni's method of investigation consisted in supporting plates ...
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Common terms and phrases
acoustical alteration apparatus arytenoid cartilages bassoon beats bell cartilages cavity clarinet comma consonant corresponding density determined diameter diapason digitals disc distance double elastic enharmonic epiglottis equal equal temperament excited experiments Fahrenheit fifth fixed flame flat flute fork friction fundamental note give given harmonic harmonium heard heat Helmholtz human voice inch instrument intervals keyboard keys length longitudinal Lord Rayleigh lower major sixth major third means membrane metal method metres Minor Sixth minor third monochord motion musical sound musical tones named nodes number of vibrations oboe observed obtained octave ordinary organ orifice pendulum perfect perfect fifths pitch plate prime tone produced prongs ratio reed resonance rotating scale schismas segments semitone sharp sharpened simple siren sonorous source of sound string temperament temperature termed tonometer triad tube tuned tuning-fork unison upper partial tones velocity of sound vibration number violin wave wave-length wire