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NAB > 4b. Sound and Hearing > Flashcards

4b. Sound and Hearing Flashcards

1
Q

Frequency

  • Alternate Name
  • Defintion
  • Units
A

Pitch

The number of times the waveforms repeats every second

Hz

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2
Q

Frequency

- Equation

A

F = 1/P

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3
Q

Amplitude

  • Alternate Name
  • Defintion
A

Intensity

The amount of pressure variation about the mean

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4
Q

Phase

- Defintion

A

Portion of the cycle which has passed relative to some fixed point in time

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5
Q

Wavelength

  • Equation
  • Units
A

lambda = c/f

Metres

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6
Q

Describing Direction of Sound

A
  • Azimuth plane (horizontal)

- Elevation (vertical)

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7
Q

Threshold of Hearing

A

0dB

2x10^-15 Pa

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8
Q

Threshold of Pain

A

140dB

200Pa

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NAB (37 decks)

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