Open AccessOPTIMIZATION OF REVERBERATION CHAMBER PARAMETERS FOR ACOUSTIC TESTS OF BUILDING CONSTRUCTION
Author(s) -
Alexandra Baldina,
Lilia Pastukhova,
Antonina Sekacheva
Publication year - 2019
Publication title -
akustika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.162
H-Index - 7
eISSN - 2570-8775
pISSN - 1801-9064
DOI - 10.36336/akustika20193453
Subject(s) - reverberation , sound pressure , acoustics , reverberation room , electromagnetic reverberation chamber , critical distance , sound (geography) , correlation coefficient , noise (video) , physics , sound power , mathematics , computer science , statistics , artificial intelligence , image (mathematics)
The work is devoted to the study of the acoustic characteristics of reverberation chamber. Sound pressure measurements have been carried out to study the sound field in low and high level rooms of reverberation chamber. To determine the diffuse field of sound, the sound pressure was measured at points uniformly distributed over the area of the chambers at four levels in height. The reverberation time was studied using the method of interrupted noise and fixing the decay curve by the measuring instrument. To establish the characteristic correlation between the sound pressure level at the measuring points and the distance to the sound source, the Pearson correlation coefficient was calculated. The degree of influence of the finishing room on the amount of reverberation time was investigated.