Problem 8: Sound perception Flashcards
azimuth
left to right
elevation
up and down
distance
from sound to listener
binaural sounds
interaural time and level difference, acoustic shadow, cone of confusion
monaural cues
spectral cues, movement parallax in sound
interaural time difference
difference in time for sound to reach the ears
interaural level difference
difference in sound pressure between the sounds in the two ears
acoustic shadow
head creates barrier between two ears, which changes the intensities of the sounds
cone of confusion
area on the right and left ear where the interaural time and level difference are the same for each ear, therefore you can’t make out exactly where the sound is
spectral cues
depend on one ear
movement parallax in sound
when travelling, closest sounds seem to move faster that the sounds further away
direct and indirect sounds
sounds that reach the ear directly and sounds that reach the ear after having bounced off something in the environment
what is the directional transfer function
measure of how people perceive sounds coming from different locations, takes into account individual anatomy of ear and environment
how does the shape of the ear affect sound localization?
- shape of the ear helps in sounds localisation (study in changing shape of the ear)
- size and shape of upper body
- movement of upper body helps as well
auditory scene analysis
how we group sounds/how we seperate each sound source
