PSYC 212 Chapter Notes - Chapter 7: Categorical Perception, Psycholinguistics, Mondegreen
3 Apr 2016
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Document Summary
The auditory system: music and speech perception: music percepion. Musical instruments produce complex tones which conform to a harmonic series. These produce a single pitch percepion: musical pitch and imbre. Pitch processor in auditory system examines spaial arrangement of wave paterns on basilar membrane. Ex: string has fundamental frequency, but also vibrates at series of higher harmonic frequencies, each contribuing to complex tone. Each harmonic component produces travelling wave in basilar membrane, all have ixed distance relaionship to each other. Each successive harmonic = more and more towards base. Brain registers spaial relaionship: spaial patern of peak wave acivity on basilar membrane forms criical factor in producing single pitch sensaion by a complex musical tone (how the brain does this is unknown) 2:1 frequency raio = fundamental interval of musical pitch, called octave. Move one octave higher = double frequency. Musical pitch spans 7 octaves (though human hearing spans 10 octaves) Musical scales chromaic intervals and tone height.
