PSYB65H3 Chapter Notes - Chapter 10: Basilar Membrane, Tectorial Membrane, Oval Window
Document Summary
Sound waves undulating displacement of molecules cased by changing pressure. Without brain sound and sight does not exist. If you don"t hear it sound waves are made but not sound. Cycle one complete peak and valley on a graph. Sound-wave frequency number of cycles a wave completes in a given amount of time. One hertz is one cycle per second. Low pitch sound have slower wave frequency (opposite for high) Whale, dolphins and dogs can hear the most. Sound-wave amplitude causes differences in perceived intensity or loudness. 100 db or more can damage hearing. Pure tones sounds with single frequency. Complex tones mix wave frequency in combinations. Fundamental frequency rate at which complex waveform patterns repeat. Overtones set of higher frequency sound waves that vibrate at whole number. Language and music difference way to perceive sound. 5 segments of buzz from non-speech or musical noise. After age 10 it is difficult to learn a new language.
