Sound and Music: a Non-mathematical Treatise on the Physical Constitution of Musical Sounds and Harmony: Including the Chief Acoustical Discoveries of Professor Helmholtz |
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Page 6
... once in each interval between a stroke and its echo . Since each such interval was exactly equal to that between an echo and the following stroke , the whole movement of Sound took place in alternate equal intervals , i.e. in half the ...
... once in each interval between a stroke and its echo . Since each such interval was exactly equal to that between an echo and the following stroke , the whole movement of Sound took place in alternate equal intervals , i.e. in half the ...
Page 15
... once more returned to its starting - point in the level - line . ' We have here a vibratory or oscillatory move- ment , like that of the end , or ' bob , ' of a clock- pendulum , but executed in a vertical straight line . We call the ...
... once more returned to its starting - point in the level - line . ' We have here a vibratory or oscillatory move- ment , like that of the end , or ' bob , ' of a clock- pendulum , but executed in a vertical straight line . We call the ...
Page 16
... A. In the clock - pendulum we have , during each second , one complete oscillation , consisting of one swing from left to right and one from right to left . Reference to Fig . 5 at once shows that , 16 [ I. § 8 . EXTENT AND AMPLITUDE .
... A. In the clock - pendulum we have , during each second , one complete oscillation , consisting of one swing from left to right and one from right to left . Reference to Fig . 5 at once shows that , 16 [ I. § 8 . EXTENT AND AMPLITUDE .
Page 17
... once shows that , during the time occupied by the wave in traversing its own wave - length , the moving drop performs one complete vibration , or , to express the same fact in the reverse order , that while the drop makes one complete ...
... once shows that , during the time occupied by the wave in traversing its own wave - length , the moving drop performs one complete vibration , or , to express the same fact in the reverse order , that while the drop makes one complete ...
Page 25
... once , a general idea of the form of the resulting wave . By laying down more points along the line AB in Fig . 11 , we can get as many more points on the wave as we please , and should thus ultimately arrive at a continuous curved line ...
... once , a general idea of the form of the resulting wave . By laying down more points along the line AB in Fig . 11 , we can get as many more points on the wave as we please , and should thus ultimately arrive at a continuous curved line ...
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Common terms and phrases
absolute pitch Accordingly air-column assigned called chords coincides combination-tone complete composite sounds concord consonance and dissonance contains corresponding crest Crown 8vo direction discord dissonance effect English equal temperament exactly fact fcap Fifth fixed follows fork forms of vibration Fourth fundamental tone fundamental-tone give rise harmonium heard Helmholtz Hence human voice instrument intensity inversion length level-line loudness lower Major scale Major Third ment middle Minor Seventh Minor Sixth mode of vibration motion musical sound nodes notation obtained octave open pipe original overtones pair partial-tones particle pendulum pianoforte piston pitch position present produced prong pulse-length rapid rarefaction reader resonance resonance-boxes result says scale semi-tone shown simple tones single musical stopped pipe string suppose theory tion tonic Tonic Sol-Fa triads trough tube tuning tuning-fork unison ventral segments vibration-fraction vibration-numbers vibrations per second volume wave-form wave-length wires
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