chp 8 updated

Question 1

Which of the following gives us the basic quality that we perceive as pitch?

Answer 1

frequency

Question 2

Which two wave properties are most directly related to what we perceive as loudness?

Answer 2

frequency and amplitude

Question 3

Which of the following is defined as the power per area reaching a location?

Answer 3

sound intensity

Question 4

Which of the following units are associated with sound intensity level?

Answer 4

decibels

Question 5

Which of the following sound intensities, presented in , is generally accepted as the lower threshold for human hearing?

Answer 5

10 to the -12

Question 6

Which of the following is the RMS value of the numbers 2 and 4?

Answer 6

square root of
2 to the 2 + 4 to the 2 over 2

Question 7

Which loudness scale was specifically developed to account for the fact that human hearing perception is not consistent across all frequencies?

Answer 7

loundness level (LL)

Question 8

What units are used for the Loudness Level ?

Answer 8

phon

Question 9

Which of the following values is closest to the Just Noticeable Difference in Frequency for most people at frequencies between about 100 and 1,000 [Hz]?

Answer 9

1 hz