Audition

Question 1

What is phase

Answer 1

Phase is the relationship between peaks and trough

In phase the when waves line up can be different amplitudes

Question 2

What is amplitude

Answer 2

the maximum extent of a vibration or oscillation(height)

Question 3

What is a trough

Answer 3

Lowest part of a wave

Question 4

What is a crest

Answer 4

Highest point in a wave

Question 5

What does bigger amplitude mean in terms of sound

Answer 5

Louder sounds

Question 6

What does the meatus do?

Answer 6

It applies sound in the ear

Question 7

What is sound

Answer 7

Sound is air moving to fluid in the ear

Question 8

What does the middle ear do?

Answer 8

Manages the impedance mismatch caused by outer ear causing loss to sensitivity of sound

Question 9

How does the middle ear work

Answer 9

Malleus, Incus and stapes are bones that clash against each together to transmit signals

Question 10

cochlea

Answer 10

Has different segments filled up with different types of fluid

Question 11

corti

Answer 11

Structure in the cochlea where waves land and displacement of cochlear fluid and movement of hair cells at the Corti to produce electrochemical signals.

Question 12

Stereo-cilia

Answer 12

These are inner and outer hair cells that act as mechano-transducers which contract and boost vibrations of the membrane

Question 13

Basilar membrane

Answer 13

Apart of the hearing structure in which the lower end is tuned for higher frequencies and the higher end is tuned for lower frequencies
It can take the sound and split it into its frequencies

Question 14

Topographical mapping

Answer 14

Vibrations being overlapped into a decomposition of the sound splitting the frequencies

Question 15

How can you represent waves

Answer 15

As a time domain or a frequency domain

Question 16

sinusoidal

Answer 16

having the form of a sine curve.

Question 17

kinocilium

Answer 17

Branched out structure that can move and allows mechanical sodium channels to open

Question 18

Hair cells

Answer 18

Potassium enters cell through cilia causing depolarisation
Calcium ions enter through channels and activates potassium channels to leave the cell(depolarising)
Causing electrical resonance

Question 19

Endolymph

Answer 19

Contains high concentration of potassium ions and perilymph contains low potassium ion to create a basal

Question 20

How does auditory vision travel to the brain stem

Answer 20

Parallel

Question 21

MSO(Medial sup olive)

Answer 21

Computes location of the sound by arrival time in different ears
MSO codes time delay

Question 22

EE and EL cells

Answer 22

EE cells are excited by both ears

El cells are excited by one ears