Elementary Lessons on Sound |
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Page xi
... Third 50. - Professor Blake's Method of Photographing Vibrations . 51 .-- Curve representing a Sound - wave . 93 99 111 52. - Perronet Thompson's Keyboard 147 53. - Poole's Keyboard . 54 .-- Bosanquet's Generalised Keyboard 55. - Plan ...
... Third 50. - Professor Blake's Method of Photographing Vibrations . 51 .-- Curve representing a Sound - wave . 93 99 111 52. - Perronet Thompson's Keyboard 147 53. - Poole's Keyboard . 54 .-- Bosanquet's Generalised Keyboard 55. - Plan ...
Page 3
... third sound ; originally taught by the great violinist to his pupils as a means of accurate tuning , but now shown by Helmholtz . to involve a new and important acoustic principle . In many cases instruments of music actually stand in ...
... third sound ; originally taught by the great violinist to his pupils as a means of accurate tuning , but now shown by Helmholtz . to involve a new and important acoustic principle . In many cases instruments of music actually stand in ...
Page 10
... third from the end , and excited midway between the end and the damping , a second node will be established in the free part ; the string will vibrate in three segments , giving the twelfth of its fundamental note . The higher notes ...
... third from the end , and excited midway between the end and the damping , a second node will be established in the free part ; the string will vibrate in three segments , giving the twelfth of its fundamental note . The higher notes ...
Page 11
... third of the length the twelfth has about equal intensity with the fundamental , at one - fourth the double octave , at one - fifth the major seventeenth . The harmonic always slightly precedes the fundamental tone . Speaking generally ...
... third of the length the twelfth has about equal intensity with the fundamental , at one - fourth the double octave , at one - fifth the major seventeenth . The harmonic always slightly precedes the fundamental tone . Speaking generally ...
Page 13
... third , one a twelfth above the fundamental . These longitudinal vibrations are not affected by tension , as are the transverse , but are materially influenced by the substance of which the wire is made , and the velocity with which it ...
... third , one a twelfth above the fundamental . These longitudinal vibrations are not affected by tension , as are the transverse , but are materially influenced by the substance of which the wire is made , and the velocity with which it ...
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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