Theories of Hearing: A Critical Study of Theories and Experiments on Sound-conduction and Sound-analysis in the Ear |
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Page 128
... frequency depends upon the period of the forcing frequency . For on either side of the resonance - frequency the impedance will be larger and the transfer of energy less . For frequencies far below the resonance - frequency the term mx ...
... frequency depends upon the period of the forcing frequency . For on either side of the resonance - frequency the impedance will be larger and the transfer of energy less . For frequencies far below the resonance - frequency the term mx ...
Page 129
... frequency - independent function of the displacement of the membrane the same relation must exist between the elongation and the sound- pressure . When the E.M.F. is a frequency - independent function of the velocity of the membrane the ...
... frequency - independent function of the displacement of the membrane the same relation must exist between the elongation and the sound- pressure . When the E.M.F. is a frequency - independent function of the velocity of the membrane the ...
Page 143
... frequency - range tested . With the round window intact and the oval window removed the vibrations were stiffness - controlled up to a frequency of 1400 c / s . With both stapes and round window intact the system vibrated as a stiffness ...
... frequency - range tested . With the round window intact and the oval window removed the vibrations were stiffness - controlled up to a frequency of 1400 c / s . With both stapes and round window intact the system vibrated as a stiffness ...
Contents
INTRODUCTION | 1 |
THE STRUCTURE OF THE INNER EAR AND | 7 |
The peri and endolymphatic systems | 13 |
6 other sections not shown
Common terms and phrases
acoustic impedance amplitude anatomical apex auditory canal axis basilar membrane Békésy brane cavity cochlea cochlear fluid cochlear function cochlear response contraction critical damping curve demonstrated direction eddies elastic endolymph energy experimental experiments fenestra foramen rotundum force frequency frequency-range frictional hair-cells helicotrema Helmholtz human temporal bones hydrodynamic increase incus inner ear inner-ear system intensity intra-tympanic muscles investigations KOBRAK labyrinth labyrinthine fluid ligament low tones malleus malleus-incus mass maximal displacement mechanism microphones middle ear middle-ear system motion movements observed organ of Corti oscillations osseous ossicles ossicular chain oval window perilymph PERLMAN phase pressure pressure-transformation pressure-variations propagation ratio reactance regarded resistance resonance resonance-frequency resonance-theory round window membrane scala vestibuli sinusoidal sound sound-analysis sound-conducting apparatus sound-energy sound-pressure sound-vibrations sound-waves spiral lamina stapedial stapedial footplate stapes stiffness stimulation structure temporal bones tension tensor tympani theories of hearing transmission transmitted travelling waves tympanic membrane various velocity wave-lengths WEVER whereas