Acoustic Renovation of the Cinema Halls in Russia
Most of the Russian cinema halls were designed and built in the past for one channel sound reproduction. Now they are old fashioned and not popular with the public. It is well understood by the owners of the movie theatres that only modern rooms with multi-channel sound reproduction may be profitable. Acoustic design of 11 existing movie theatres (19 halls) was done during the last 2 years. The main parts of this design are: architectural acoustics of the rooms, sound insulation of the room's surfaces, noise control of ventilation systems, acoustic computer modelling of the loudspeaker systems for the screen and surround sound channels. There are presented the results of this design and the acoustic measurements have been done in the renovated halls. Some general tendencies for the renovation of the existing movie theatres have been estimated.
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