Lecture 7: Speech Perception

Question 1

Sound as a physical stimulus

Answer 1

pattern of pressure change in a medium, usually air

Question 2

Sound as a perceptual experience

Answer 2

the experience of hearing

Question 3

Amplitude

Answer 3

size of pressure change at peaks

Question 4

Loudness

Answer 4

perceptual experience of volume as a result of a sound waves amplitude

Question 5

Frequency

Answer 5

number of cycles or complete oscillations in one second

Question 6

Pitch

Answer 6

the height of a tone

Question 7

Timbre

Answer 7

characteristics of tones that allow differentiation of sounds with the same pitch and loudness

Question 8

Periodic sounds + example

Answer 8

pattern of pressure repeats. E.g pure tones and musical tones

Question 9

Aperiodic sounds + example

Answer 9

sound waves do not repeat. E.g glass smashing