Open AccessThe difference between several methods of sound power level for determining the sound energy emitted by a sound source
Author(s) -
Budi Purwanto,
Malinda Sabrina,
Dodi Rusjadi
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1568/1/012008
Subject(s) - sound power , acoustics , sound (geography) , reverberation room , sound intensity , critical distance , directional sound , sound energy , sound pressure , anechoic chamber , acoustic source localization , reverberation , sound intensity probe , energy (signal processing) , physics , quantum mechanics
It is needed noise control by limiting the sound energy emitted by the source. The total sound energy emitted by a sound source in all directions per unit time is called sound power. There are several methods for measuring the sound power level emitted by a sound source. This study is comparing the sound power levels of a reference source Brüel&Kjær Type 4204 using sound pressure done in anechoic rooms and hemi-anechoic rooms method (ISO 3745), using reverberation test rooms method (ISO 3741), and using the sound intensity method (ISO 9614-3). This study result that there is a small difference between those methods.