AES E-Library

Acoustic Design of NHK HD-520 Multichannel Postproduction Studio - A New Approach for Room Acoustic Design Using Multi-Layered Random Diffusers

In this paper, a novel approach for room acoustic design adopting the renewal project of NHK HD-520 multichannel post-production studio is introduced. HD-520 studio is designed for direct surround loudspeaker arrangements based on ITU-R BS.775-1 [1] and adopting an acoustically transparent screen. Generally, there are three important keys for acoustic design of multichannel post-production studios. The first is to obtain the stable and flat low frequency responses. The second, smooth panning and accurate phantom sound image, and the third, natural sounds which have the well-balanced frequency characteristics. To resolve these problems and produce a superior monitoring environment, a new approach for room acoustic design using multi-layered random diffusers with cylindrical diffusers of different sizes(MLRD) is applied for this project. First of all, an outline and the acoustic design concept for the renewal of NHK HD-520 studio are introduced. Second, the concrete method for room acoustic design for the purpose of certifying the high quality for monitoring of both audio and picture is introduced. The preferable acoustic characteristics were shown in the measurement results, and a high reputation has been given by engineers for the comfortable work area for a surround monitoring environment.

Authors: Satake, Yasushi; Makino, Kazuhiro; Sakiyama, Yasuhiro; Tsuru, Hideo; Fukada, Akira; Ono, Ryota; Uchimura, Kazutsugu; Mikami, Junichi; Otani, Masamichi; Sawaya, Ikuko
Affiliations: NHK (Japan Broadcasting Corporation), Tokyo, Japan; NHK Integrated Technology, Inc., Tokyo, Japan; NHK Media Technology, Inc., Tokyo, Japan; NHK Science & Technical Research Laboratories, Tokyo, Japan; Nittobo Acoustic Engineering Co., Ltd, Tokyo, Japan(See document for exact affiliation information.)
AES Convention:127 (October 2009) Paper Number:7933 Import into BibTeX
Subject:Multichannel Sound and Imaging

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 127Papers)   /127/7933.pdf

Start a discussion about this paper!