Midterm

Question 1

Responsibilities of A1

Answer 1

front of house

delegate

Question 2

An increase of 10 dB is perceived as

Answer 2

twice as loud

Question 3

Hz

Answer 3

cycles per second

Question 4

We can hear

Answer 4

20-20kHz

Question 5

Fletcher Munson curve

Answer 5

we hear different frequencies at different strengths

Question 6

speed of sound

Answer 6

1125 f/s or 343 m/s

Question 7

velocity

Answer 7

delay time

Question 8

X

Answer 8

distance

Question 9

T

Answer 9

speed of sound

Question 10

delay time formula

Answer 10

v=x/t

Question 11

double distance

Answer 11

6dB SPL decrease

Question 12

double power

Answer 12

3dB SPL increase

Question 13

good sound

Answer 13

tailored to application (setting, genre), clear and intelligible, balanced and natural, evenly dispersed

Question 14

dbV

Answer 14

decibels in terms of voltage = 1 volt

Question 15

dbu

Answer 15

= .775volts

Question 16

+4dbu

Answer 16

professional nominal line level standard (stronger)

Question 17

-10dbV

Answer 17

consumer nominal line level standard (weaker, noisier)

Question 18

twice as loud

Answer 18

+10db

Question 19

voltage = 1 volt

Answer 19

dbV

Question 20

voltage = .775 volts

Answer 20

dbu

Question 21

-6db

Answer 21

double distance

Question 22

3db increase

Answer 22

twice the power