audition (guest lecture flashcards)
why can’t sound waves just hit the cochlea? why do we need the ossicles?
because the ossicles amplify the sound waves so that they are strong enough to move the fluid in the cochlea
dorsal pathway of sound
sound localization
ventral pathway of sound
sound properties - what is a sound?
what is the perceptual property that is correlated to frequency?
pitch - higher frequencies mean higher pitches and vice versa for low frequencies
what is the physical property of loudness
amplitude- low amplitude = quiet, high amplitude = loud
what determines loudness perception
a combination of pitch, frequency and amplitude
what makes up a complex sound wave?
many simple sound waves
what are two cues for locating sounds in space
interaural time difference and interaural level difference
what are two key principles that contribute to our auditory scene analysis
grouping - sounds that come from the same source
separating - sounds that do not come from the same source
temporal grouping
use temporal proximity and sequential integration to pick out auditory streams
fundamental frequency
lowest frequency in a sound wave
