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IEVref: | 801-22-14 | ID: | |

Language: | en | Status: Standard | |

Term: | weighted sound pressure level | ||

Synonym1: | sound level [Preferred] | ||

Synonym2: | |||

Synonym3: | |||

Symbol: | |||

Definition: | logarithm of the ratio of a given sound pressure to the reference sound pressure of 20 μPa, the sound pressure being obtained with a standard frequency weighting and with a standard exponential time weighting. Sound level in decibels is twenty times the logarithm to the base ten of that ratio
NOTE 1 – Standard frequency weightings A, В and C and standard exponential time weightings fast (F), slow (S) and impulse (I) are given in IEC 651 (1979): Sound level meters. NOTE 2 – Time and frequency weightings employed should be specified, but if not stated explicitly, fast (F) exponential time weighting and A-frequency weighting are understood. | ||

Publication date: | 1994-07 | ||

Source: | |||

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CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

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Domain4: | |||

Domain5: |