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14 Cards in this Set
- Front
- Back
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Psychoacoustics
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the study of human perception of sounds. Can be described as the pscyhological correlates of the physical parameters of acoustics.
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Loudness vs. Intensity
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Loudness is a psychological parameter.
Intensity is a physical parameter. |
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Audability
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Sound that can be heard. The lowest is 0 dB. The average is 10 dB.
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Phon
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describes the loudness LEVEL of sound. Not the same as a decibel which can be physically measured.
It is a relative measure. |
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Sone
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derived by listening to sound, and adjusted until they are TWICE as loud as the first sound.
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Uncomfortable Soundness Level (UCL)
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In normal hearing individuals the threshold is about 110 dB.
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Most Comfortable Level (MCL)
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in normally hearing individuals, this is about 40dB above threshold (for speech).
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Pitch
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a subjective impression of frequency.
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Mel
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Named after "Melody".
A perceptual scale of pitches judged by listeners to be equal in distance from one another. It represents intervals of pitch. Bandwith corresponds to pitch ranges of 100 - 180 mels. |
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Localization
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allows a listener to locate a sound in space. This occurs as a result of timing and intensity differences.
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Interaural Timing Difference (ITD)
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the split second delay when sound reaches the nearer ear and the farther ear. This is calculated in the superior olivary complex.
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Lateralization
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knowing which hear is doing the hearing.
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Masking
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when the perception of sound is affected by another sound. this works best when the sounds are close in frequency.
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Phonemic Restoration Phenomenon
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When an extraneous sound such as a cough replaces a part of speech, listeners believe they hear the missing speech sound; in addition, they cannot localize the extraneous sound.
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