Chapter 2- Acoustics Flashcards Preview

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Flashcards in Chapter 2- Acoustics Deck (16)
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1

Sound is produced by...

Vibration

2

What are areas of higher density & pressure called?

areas of condensation

3

What are areas of lower density & pressure called?

areas of rarefaction

4

The number of repetitions of a cyclic pattern in 1 second

frequency

5

How is frequency measured?

Hertz (Hz)

6

How is frequency perceived?

Pitch

7

The duration of 1 cycle

Period

8

The physical measure of extent of vibrational change from resting position

amplitude

9

The power of sound over a particular area

Intensity

10

Amplitude & intensity are both measured in...

decibels (dB)

11

Perceptual correlate of amplitude & intensity

loudness

12

The length of time that a sound continues

duration

13

How is duration measured?

milliseconds

14

What is the distance traveled by a sound during a single cycle?

Wavelength

15

What influences wavelength

Dependent on the medium that the sound travels through

16

The location of a particular point in a waveform cycle relative to the zero line

phase