Sound and Music: a Non-mathematical Treatise on the Physical Constitution of Musical Sounds and Harmony: Including the Chief Acoustical Discoveries of Professor HelmholtzMacmillan and Company, 1873 - 219 páginas |
Dentro del libro
Resultados 1-5 de 24
Página 23
... less advanced in that line , we can assign the positions of any number of given drops at any given instant of time . Suppose that each drop makes one complete vibration per second about its position of original rest in the level - line ...
... less advanced in that line , we can assign the positions of any number of given drops at any given instant of time . Suppose that each drop makes one complete vibration per second about its position of original rest in the level - line ...
Página 27
... less tightly , packed ears . The annexed figure gives a Fig 13 . B sup- rough idea how this takes place . The wind is posed to be moving from left to right and to have just reached the ear A. Its neighbours to the right are still ...
... less tightly , packed ears . The annexed figure gives a Fig 13 . B sup- rough idea how this takes place . The wind is posed to be moving from left to right and to have just reached the ear A. Its neighbours to the right are still ...
Página 30
... less than , and in a ' and b ′ greater than , the corresponding distances when the points occupied their undisturbed positions , as in ( 0 ) . The cycles correspond to complete waves on the surface of water , the shortened and elongated ...
... less than , and in a ' and b ′ greater than , the corresponding distances when the points occupied their undisturbed positions , as in ( 0 ) . The cycles correspond to complete waves on the surface of water , the shortened and elongated ...
Página 32
... less abrupt will be the changes of distance between successive points . By indefinitely increasing the number of vibrating points , we should ultimately arrive at a state of things in which perfectly con- tinuous changes of shortening ...
... less abrupt will be the changes of distance between successive points . By indefinitely increasing the number of vibrating points , we should ultimately arrive at a state of things in which perfectly con- tinuous changes of shortening ...
Página 39
... less dense , than they would be , were the column transmitting no waves at all , and its separate particles , therefore , absolutely at rest . Let the column with which we have been dealing be the portion of atmospheric air enclosed ...
... less dense , than they would be , were the column transmitting no waves at all , and its separate particles , therefore , absolutely at rest . Let the column with which we have been dealing be the portion of atmospheric air enclosed ...
Otras ediciones - Ver todas
Términos y frases comunes
absolute pitch Accordingly air-column amplitude assigned beats per second chords clarionet coincides combination-tone complete vibration composite sounds concord consonance and dissonance corresponding crest discord dissonance distance effect equal temperament equal waves 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 Third ment Minor Seventh Minor Sixth mode of vibration motion musical sound nodes obtained octave open pipe oscillation overtones pair particle pendulum pianoforte piston pitch pressure produced prong pulse of condensation pulse-length rapid rarefaction rate of vibration reed-clang resonance resonance-boxes result scale semi-tone shown simple tones simple-tones single musical stopped pipe string suppose swing timbre tion tonic Tonic Sol-Fa traversing triads trough tube tuning tuning-fork unison ventral segments vibration-fraction vibration-numbers vibrations per second wave-length whole tone wires