Hearing in Man and Animals, Volume 10 |
Contents
THE EAR IN HUMAN BEINGS | 1 |
THE EVOLUTION OF THE EAR | 19 |
THE RESONANCE THEORY OF HEARING | 35 |
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amplitude animals appear audible auditory nerves aurist basilar membrane beats becomes Békésy bels bony brain CHAPTER cochlea cochlear nerve corresponding cortex cycles per second deafness defect diatonic scale difference tone drum ear-drum effect energy experiments fatigue fibres Fifth fishes fork Frequency in Cycles give hair-cells hairlets harmonic heard hearing helicotrema Helmholtz high frequencies higher human ear increase inferior colliculus inner ear intensity interval left ear length liquid localisation loud lower mammals masking tone maximum mechanism middle ear muscles musical nervous impulses noise obtained occur octave organ of Corti ossicles otolith outer ear oval window overtones perceptible pitch pressure produced Psychol pure tone quency ratio reflex region reptiles resonance curve resonance theory right ear saccule scale semitone sensation shown in Fig shows silence simultaneously skull sound sound-waves speech stimulus stirrup string tectorial membrane temporal lobe tion tone of frequency tube tuning-fork variation vibration waves