Leq - Equivalent Sound Level
Equivalent Sound Level - Leq - quantifies the noise environment as a single value of sound level for any desired duration.
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The Environmental Protection Agency - EPA - has adopted a system of four "sound descriptors"
- A-weighted sound level
- Sound Exposure Level - Ls
- Equivalent Sound Level - Leq
- Day-Night Sound Level - Ldn
to summarize how sound is heard and measured, and to determine the impact of noise on health and welfare.
Equivalent Sound Level - Leq
quantifies the noise environment as a single value of sound level for any desired duration. This descriptor correlates well with the effects of noise on people.
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