Spectrum as Emission Value

Depending on legal requirements the study often has to be carried out considering the level spectrum of the source. However, calculation based on A-weighted noise levels - as been shown before - is possible as well when needed.

The emission levels of the point source can be entered into CadnaA as an spectrum in octave band width by selecting "Spectrum" for „Type“ on the point source dialog.

By clicking the file selector symbol to the right of the PWL-input box the local library of sounds levels (sound power level spectra & interior sound pressure level spectra) opens where a spectrum can be selected.

All further information on entering, processing and selection of sound emission spectra can be found in the CadnaA-reference manual, chapter Spectra.