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Convention Paper

Acoustical Design of a Surround-Sound Postproduction Studio for HDTV

Authors: Wakatsuki, Toshio; Sashide, Yoshiko; Fukunishi, Tohru

AES Convention 95 · Paper 3762 · October 1993

Abstract

The HDTV Multichannel Sound Study Group, under the sponsorship of the Hoso Bunka Foundation, has organized approximately 30 members since 1991. The groups's final goal is to obtain a practical guideline at the multichannel sound production stage. This paper describes current activity in this regard. NHK has constructed a sound postproduction studio for HDTV. It was designed for use with 4-channel (3-1) sound reproduction. The control room has a length of 9.0 m, a width of 7.3 m, and a height of 3.2 to 3.6 m with a reverberation time of : about 0.25 s. The front walls and ceiling of the room are absorbent and the rear is diffusely reflective. Some sound traps and sound diffusors were used to complete the acoustic design. A 160-in sound screen (patent pending) on the front wall enables installation of the central loudspeaker behind the screen at the same height as the left and right loudspeakers on either side. Two large and five small loudspeakers for the surround soundfield were installed in the side and rear walls.

Details

Published in
AES Convention 95
AES Convention
95
Paper number
3762
Publication date
October 6, 1993
Session subject
Architectural Acoustics
Affiliation
NHK (Japan Broadcasting Corporation), Shibuya-ku, Tokyo, Japan (See document for exact affiliation information.)
Type
Convention Paper