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Flashcards in Midterm Deck (22)
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1

Responsibilities of A1

front of house
delegate

2

An increase of 10 dB is perceived as

twice as loud

3

Hz

cycles per second

4

We can hear

20-20kHz

5

Fletcher Munson curve

we hear different frequencies at different strengths

6

speed of sound

1125 f/s or 343 m/s

7

velocity

delay time

8

X

distance

9

T

speed of sound

10

delay time formula

v=x/t

11

double distance

6dB SPL decrease

12

double power

3dB SPL increase

13

good sound

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

14

dbV

decibels in terms of voltage = 1 volt

15

dbu

= .775volts

16

+4dbu

professional nominal line level standard (stronger)

17

-10dbV

consumer nominal line level standard (weaker, noisier)

18

twice as loud

+10db

19

voltage = 1 volt

dbV

20

voltage = .775 volts

dbu

21

-6db

double distance

22

3db increase

twice the power