Influence of the shape and kind of acoustical treatment of ceiling for distribution of sound energy in a shallow room

Author: Janczur R.   Czarnecki S.  

Publisher: Institute of Noise Control Engineering

ISSN: 0736-2935

Source: INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Vol.1979, Iss.2, 1979-09, pp. : 397-402

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