Hearing Flashcards
1
Q
What are sound waves?
A
Changes in air pressure. The physical stimulus for audition.
2
Q
What are sound waves funneled by?
A
pinna (outermost portion of the ear), into the auditory canal (part you stick a q card in)
3
Q
What does the tympanic membrane vibrate against ?
A
the ossicles
4
Q
what amplifies the sound waves before they enter the cochlea?
A
the eardrum and the ossicles
5
Q
What is audition?
A
Ability to process auditory stimuli. Also called hearing.
6
Q
What is Interaural time differences (ITD)
A
Differences (in time) between the two ears.
7
Q
What are interaural level differences (ILD)
A
Differences (usually in time or intensity) between the two ears.
8
Q
What sound pressure level is dangerously loud?
A
120 decibels (db)
