Outside-inside difference in environmental noise levels

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Scope

What is the average a) instantaneous b) long-term difference in A-weighted sound levels of environmental noise, when measured outside and inside a residential building, taking into account window opening habits?

Note: The answers depend on a number of variables, such as a) spectral content (i.e. source) of the noise b) temporal distribution of the noise c) sound insulation of the facade(s) d) use of ventilation windows e) sound absorption inside the building f) position where the indoor noise is measured.

Thus, the ideal answer would be given as a function of each of these variables. However, for the purpose of this variable, approximate data (e.g. pertaining to typical conditions) is sufficient.

Definition

Data

Description of the data used for obtaining the value of the variable
(e.g. measurement data; mathematical method and its parameters). 

Please include references (preferably using the <ref> </ref> tags)
and links to original data, as appropriate.

Dependencies

List of upstream variables.
The variables can be listed used descriptive (free-format) names or unambiguous identifiers
(e.g. Analytica IDs).

Unit

Unit in which the result is expressed.

Formula

Algebra or other explicit methods if possible
(e.g. Analytica code between the <anacode> </anacode> tags).

Result

If possible, a numerical expression or distribution.

See also

Links to relevant information that does not belong to Definition.

Keywords

References

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Related files

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Outside-inside difference in environmental noise levels. Opasnet . [1]. Accessed 18 May 2024.
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