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7 Cards in this Set
- Front
- Back
Decibels
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The magnitude or strength of sound is measured in decibels.
Decibels are on a ratio and relative scale. On a physical parameter that can be measured. |
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Linear Scale
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All units are the same size.
Each incremental change at one end is equal the incremental change at the other end of the scale. Represented graphically. |
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Logarithimic Scale
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Each unit on scale is larger than the preceding unit.
We perceive changes in sound intensity on a logarithmic scale. |
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Geometric Progression
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Sound does not change in a linear fashion.
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Absolute Scale
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0 point represents absence of what is being measured.
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Relative Scale
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No true zero point. Zero is arbitrarily chosen.
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Ratio Scale
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A measurement scale in which a certain distance along the scale means the same thing no matter where on the scale you are, and where "0" represents the absence of what is being measured.
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