Speech perception (Oct 9)

Question 1

What amplifies the pressure variation’s

Answer 1

the outer and middle ear

Question 2

What are the 2 parts of the basilar membrane and what do they do?

Answer 2

• Base: thin end (close to oval +round windows) responds high frequencies
• apex: thick end, responds to low frequencies.

Question 3

What is the range at which we can hear?

Answer 3

20hz-20000hz

Question 4

Poll Question:
Which end of the basilar membrane will be active in processing the acoustic signals related to sounds [s] and [z]?

Answer 4

Base, sibilants have higher frequencies (around 7000-8000)