RCAIDE.Library.Methods.Aeroacoustics.Metrics.A_weighting_metric

A_weighting_metric#

A_weighting_metric(SPL, f)[source]#

This method calculates the A-weighted Sound Pressure Level (SPL) given its spectra.

Parameters:

  • SPL (float or array_like) – Sound Pressure Level [dB].

  • f (float or array_like) – Frequency of the sound [Hz].

Returns:

SPL_dBA – A-weighted Sound Pressure Level [dBA].

Return type:

float or array_like

Notes

The function applies the A-weighting filter to the input SPL, which adjusts the levels to reflect the frequency sensitivity of human hearing.

Definitions

‘SPL_dBA’

A-weighted Sound Pressure Level, a measure of sound intensity adjusted for human hearing sensitivity.

References

IEC 61672-1:2013 Electroacoustics - Sound level meters - Part 1: Specifications. IEC. 2013.