| 1. | L eq value ( equivalent sound pressure level ), defined by standards.
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| 2. | Affected articles include decibel, sound pressure, sound pressure level, and audiogram.
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| 3. | The treatment of sound pressure level is inconsistent with standard reference works across Wikipedia.
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| 4. | At ordinary sound pressure levels, most humans can hear down to about 20 Hz.
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| 5. | This allows independent control of the sound pressure levels for the audience and the performers.
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| 6. | Doing so can alter their frequency response and cause distortion, especially at high sound pressure levels.
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| 7. | "' Hearing level "'is the sound pressure level produced by an audiometer at a specific frequency.
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| 8. | Most of today's appliances produce sound pressure levels between 45 and 120 decibels at ten feet.
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| 9. | Interaural level differences ( ILD ) represents the difference in sound pressure level reaching the two ears.
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| 10. | Without a specified reference sound pressure, a value expressed in decibels cannot represent a sound pressure level.
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