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29 Cards in this Set
- Front
- Back
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.0002 dynes/square cm equal 20 of these
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micropascals
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subjective impression of frequency
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pitch
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magnitude of difference between the softest sound detected and the loudest sound tolerated by humans without pain
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trillion
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a number expressed as an exponent that tells how many times a given number is multiplied by itself
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logarithm
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sounds which vary randomly and have no fundamental frequency
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aperiodic
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rapid random molecular movement
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Brownian movement
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electronic instrument used to test hearing
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audiometer
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hearing sensitivity compared to some normative population
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hearing level
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tendency of an object to return to it's original shape after being distorted
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elasticity
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number of cycles in a second
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frequency
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force sufficient to move 1 gram 1 cm/sec squared
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dyne
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expresses a ratio between two intensities and unit of measure used to specify the intensity of sound
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decibel
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a single complete compression and rarefaction
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cycle
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waves in which molecules move in the same direction of the wave
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longitudinal
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distance from a point on one cycle to the same point on the next cycle
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wavelength
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study of relationship between physical auditory stimuli and psychological responses to which they give rise.
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psychoacoustics
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unit of pressure in the SI system
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pascal
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instrument used to measure environmental sounds
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sound level meter
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unique distinguishing harmonics associated with a particular speech sound
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formants
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time it takes for one cycle of sound
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period
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waves in which molecules move perpendicular to direction of the wave
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transverse
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frequency is expressed in this unit of measure
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hertz
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unit of loudness
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phons or sones
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how far the individual molecule is displaced by a force
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intensity
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sounds having only one frequency
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pure tones
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force applied over a given area
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pressure
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unit of pitch
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mel
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subjective impression of intensity
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loudness
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resistance to sound transmission
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impedence
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