Term
| Physical Perspective of Sound |
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Definition
| A vibratory energy transmitted by pressure waves in the air or other media |
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Term
| Psychological Perspective |
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Definition
| An auditory experience, the act of hearing something |
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Term
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Definition
| Amount of quantity of matter |
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Term
| Physical Properties of Sound |
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Definition
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Term
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Definition
| Ability of a mass to return to its natural state |
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Term
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Definition
| A type of periodic motion where the restoring force is directly proportional to the displacement; the motion is sinusoidal in time and demonstrates a single resonant frequency |
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Definition
| Progressive diminution in the amplitude of a vibrating body |
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Term
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Definition
| Graph that shows displacement as a function of time |
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Term
| Properties of Sound Waves |
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Definition
| Frequency, phase, intensity/amplitude |
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Term
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Definition
| Rate at which a sinusoid repeats its self (cycles per second); expressed in Hz; related to perception of pitch |
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Term
| Human Range of Hearing (Hz) |
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Definition
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Term
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Definition
| The duration in seconds of one cycle of vibration; inversely related to frequency |
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Term
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Definition
| The distance between the exact same point on two successive cycles of a tone; w=c/f |
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Definition
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Term
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Definition
| Describes the position of 2 waves relative to one another; expressed in degrees; perceived at timbre |
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Definition
| Described the magnitude of the sound; measured in dB, perceived as loudness |
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Term
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Definition
| 20log(pressure measured/pressure referenced) |
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Term
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Definition
| 20log(pressure measured/20uPa) |
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Term
| Human Threshold of Hearing (dB, uPa) |
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Definition
| 0-140 dB SPL, 20-200 million uPa |
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Term
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Definition
| A sound that contains multiple harmonically related frequencies that repeats over time |
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Term
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Definition
| The lowest frequency of vibration in a complex wave |
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Term
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Definition
| Any whole number multiple of the fundamental frequency of a complex wave, fundament frequency=1st harmonic |
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Term
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Definition
| The mathematical breakdown of any complex wave into its component parts, consisting of simple sinusoids of different frequencies |
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Term
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Definition
| Waveforms in which there is no repetitive pattern and frequencies that are not harmonically related; no fundamental frequency |
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Term
| Components of a Pure Tone Audiometer |
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Definition
| Frequency selector, attenuator dial, transducer selector, router switch, interrupter switch, patient response indicator, VU meter |
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Term
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Definition
| Supra-aural earphones, insert earphones, bone conduction vibrator, loudspeaker, circumaural headphones |
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