| 21. | Most of today's appliances produce sound pressure levels between 45 and 120 decibels at ten feet.
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| 22. | Doing so can alter their frequency response and cause distortion, especially at high sound pressure levels.
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| 23. | In air, sound pressure can be measured using a microphone, and in water with a hydrophone.
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| 24. | Without a specified reference sound pressure, a value expressed in decibels cannot represent a sound pressure level.
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| 25. | Without a specified reference sound pressure, a value expressed in decibels cannot represent a sound pressure level.
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| 26. | The speaker cone also generates more sound pressure, delivering more dynamic range and detail to the microphone.
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| 27. | The glossary in the file does have an entry for " sound pressure level ", which is
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| 28. | Sound Pressure is measured inside the vehicle.
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| 29. | The design process starts by entering the dimensions of the room and the required sound pressure level.
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| 30. | Sirens generate low frequencies, but with high sound pressure levels distortion appears that leads to higher harmonics.
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