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19 Cards in this Set
- Front
- Back
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What is Acoustics?
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is the study of sound as a physical event
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What is Psychoacoustics?
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is the study of sound as the psychological experience of hearing
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What is a tone of single frequency called?
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Pure tone
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What is a single tone frequency called when it repeats itself?
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simple harmonic motion or sinusoidal motion
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What does two or more sounds of differing frequencies create?
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complex tone
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Frequency is know as?
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number of times a cycle of vibration repeats itself within a second
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Periodic vibrations
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it has a pattern that repeats itself at regular intervals until stopped by external action
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Aperiodic vibrations
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there is no pattern and they occur at irregular intervals
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What does hertz (Hz) mean in 200 Hz?
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that there are 200 cycles of compression and rarefaction in 1 sec.
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The range 20 Hz to 20,000Hz
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frequency that human ears are capable of responding to.
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Pitch
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is the variation in the frequency of vibratory cycles
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Decibel
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measure of sound pressure; measure intensity of one sound against another
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Pitch
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is the variation in the frequency of vibratory cycles
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Decibel
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measure of sound pressure; measure intensity of one sound against another
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Severe hearing loss
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71 to 90 dB, difficulty understanding loud and amplified speech
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Normal hearing
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up to 15dB children and up 10 25 dB adults
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Profound hearing lost
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91+dB, typically deaf
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Moderate hearing loss
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41 to 55 dB, delayed speech and language acquisition; trouble producing certain speech sounds and following conversation
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Mild hearing loss
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16 to 40 dB children; 25 to 40 dB adults, difficulty with faint or distant speech, may cause language delay
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