set_K2_from_room_properties

SoundPowerLevelISO3744.set_K2_from_room_properties(length, width, height, alpha)

Set K2 from measurement room properties and measurement surface area.

Sets K2 following Annex A of ISO 3744, based on specified room dimensions and averaged sound absorption coefficient, and current measurement surface area (ie shape and radius).

Parameters:

lengthfloat

Measurement room length in m.

widthfloat

Measurement room width in m.

heightfloat

Measurement room height in m.

alphafloat

Mean sound absorption coefficient between 0 and 1. Typical example values are given in Table A.1 of ISO 3744.

Returns:

float

Calculated correction K2 in dB

Return type:

float