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Low Voltage Year 3 - Test 5 > extra > Flashcards

Flashcards in extra Deck (11):
1

amplitude equals __________ measured in_________

STRENGTH
dB

2

output transducers convert __________ into ________

output transducers convert electrical energy back into acoustical energy.

3

1dBm = _________ ohlms

600

4

volume = __________

power

5

headroom is __________

how far peak levels stray from nominal levels

6

attenuation can be affected by _________

relative humidity

7

hum is most often caused by

ground loops, ground faults, power supply issues

8

turnover frequency is

is the frequency where the level of the filter has dropped 3 db

9

piezoelectric should be protected _________

from physical abuse

10

compressors and limiters _________

reduce dynamic range

11

to be considered audio the band must be between __________

20 and 20khz