Evaluation of airborne sound insulation between two cinemasI.E. Tsukernikov, doct. of techn. sci.;
A.S. Fadeev, graduate student,
Research Institute of construction physics of RAASN
(127238, Moscow, Locomotivny Drive, 21)
Abstract. The number of cinemas has increased over the past 10 – 15 years in Russia. The main part of the new cinemas is multiplex cinemas in the shopping and entertainment malls. It is mean that in multiplex two cinemas may show the movies at the same time. The problem of airborne sound insulation by a partition/slab between two multiplex cinemas halls is considered. The analysis of the regulatory and technical documents (the International Standard, and the national documents of the Russian Federation, as well as the corporative standards of international cameramen) is done. Field airborne sound insulation measurement in the extended frequency range is done. The singlenumber values of sound insulation is calculated according to GOST R 567692015. It is shown that, it is reasonable to use C503150 as a spectral adaptation term. The discrepancy between the estimated sound insulation parameters and the requirements of the current regulatory documents especially in low frequency range is demonstrated.
Key words: noise, airborne sound insulation, cinema.