Acoustical design of the Tokyo Opera City (TOC) concert hall, Japan
Identifieur interne : 000619 ( PascalFrancis/Checkpoint ); précédent : 000618; suivant : 000620Acoustical design of the Tokyo Opera City (TOC) concert hall, Japan
Auteurs : Takayuki Hidaka [Japon, États-Unis] ; Leo L. Beranek [Japon] ; Sadahiro Masuda ; Noriko Nishihara ; Toshiyuki OkanoSource :
- The Journal of the Acoustical Society of America [ 0001-4966 ] ; 2000-01.
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Abstract
The Tokyo Opera City concert hall seats 1632, volume 15300 m3, and reverberation time, with audience and orchestra, 1.95 s. As part of the design process, measurements on CAD computer and 1:10 wooden models of the hall and full-sized materials samples were conducted over a 5-yr. period. The hall in plan is rectangular. The ceiling is a distorted pyramid, with its peak 28 m above the main floor and nearer the stage than the rear of the hall. This unique shape was analyzed on the models so that all interior surfaces combine to distribute sources on the stage uniformly over the seating areas and to yield optimum values for reverberation time (RT), early decay time (EDT), interaural cross-correlation coefficient (IACCE3), bass ratio (BR), initial-time-delay gap (ITDG), strength (G), and sound diffusion index (SDI) [for definitions see L. Beranek, Concert and Opera Halls: How They Sound (Acoustical Society of America, Woodbury, NY, 1996)]. On the long ceiling facing the stage, Schroeder QRD diffusers provide diffusion, eliminate a possible echo, and strengthen lateral reflections. Performers and critics judge the acoustics excellent. © 2000 Acoustical Society of America.
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Beranek</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Takenaka R&D Institute, 1-5-1, Otsuka, Chiba 270-1395, Japan</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country xml:lang="fr">Japon</country><wicri:regionArea>Takenaka R&D Institute, 1-5-1, Otsuka, Chiba 270-1395</wicri:regionArea><wicri:noRegion>Chiba 270-1395</wicri:noRegion></affiliation></author><author><name sortKey="Masuda, Sadahiro" sort="Masuda, Sadahiro" uniqKey="Masuda S" first="Sadahiro" last="Masuda">Sadahiro Masuda</name></author><author><name sortKey="Nishihara, Noriko" sort="Nishihara, Noriko" uniqKey="Nishihara N" first="Noriko" last="Nishihara">Noriko Nishihara</name></author><author><name sortKey="Okano, Toshiyuki" sort="Okano, Toshiyuki" uniqKey="Okano T" first="Toshiyuki" last="Okano">Toshiyuki Okano</name></author></analytic><series><title level="j" type="main">The Journal of the Acoustical Society of America</title><title level="j" type="abbreviated">J. Acoust. Soc. Am.</title><idno type="ISSN">0001-4966</idno><imprint><date when="2000-01">2000-01</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">The Journal of the Acoustical Society of America</title><title level="j" type="abbreviated">J. Acoust. Soc. Am.</title><idno type="ISSN">0001-4966</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic wave reflection</term><term>Architectural acoustics</term><term>Echoes</term><term>Experimental study</term><term>Reverberation</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>4355B</term><term>Etude expérimentale</term><term>Réverbération</term><term>Acoustique architecturale</term><term>Echo</term><term>Réflexion onde acoustique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The Tokyo Opera City concert hall seats 1632, volume 15300 m3, and reverberation time, with audience and orchestra, 1.95 s. As part of the design process, measurements on CAD computer and 1:10 wooden models of the hall and full-sized materials samples were conducted over a 5-yr. period. The hall in plan is rectangular. The ceiling is a distorted pyramid, with its peak 28 m above the main floor and nearer the stage than the rear of the hall. This unique shape was analyzed on the models so that all interior surfaces combine to distribute sources on the stage uniformly over the seating areas and to yield optimum values for reverberation time (RT), early decay time (EDT), interaural cross-correlation coefficient (IACC<sub>E3</sub>), bass ratio (BR), initial-time-delay gap (ITDG), strength (G), and sound diffusion index (SDI) [for definitions see L. Beranek, Concert and Opera Halls: How They Sound (Acoustical Society of America, Woodbury, NY, 1996)]. On the long ceiling facing the stage, Schroeder QRD diffusers provide diffusion, eliminate a possible echo, and strengthen lateral reflections. Performers and critics judge the acoustics excellent. © 2000 Acoustical Society of America.</div> </front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0001-4966</s0></fA01><fA02 i1="01"><s0>JASMAN</s0></fA02><fA03 i2="1"><s0>J. Acoust. Soc. Am.</s0></fA03><fA05><s2>107</s2></fA05><fA06><s2>1</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Acoustical design of the Tokyo Opera City (TOC) concert hall, Japan</s1></fA08><fA11 i1="01" i2="1"><s1>HIDAKA (Takayuki)</s1></fA11><fA11 i1="02" i2="1"><s1>BERANEK (Leo L.)</s1></fA11><fA11 i1="03" i2="1"><s1>MASUDA (Sadahiro)</s1></fA11><fA11 i1="04" i2="1"><s1>NISHIHARA (Noriko)</s1></fA11><fA11 i1="05" i2="1"><s1>OKANO (Toshiyuki)</s1></fA11><fA14 i1="01"><s1>Takenaka R&D Institute, 1-5-1, Otsuka, Chiba 270-1395, Japan</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>975 Memorial Drive, #804, Cambridge, Massachusetts 02138</s1></fA14><fA14 i1="03"><s1>Takenaka R&D Institute, 1-5-1, Otsuka, Chiba 270-1395, Japan</s1><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA20><s1>340-354</s1></fA20><fA21><s1>2000-01</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>129</s2></fA43><fA44><s0>8100</s0><s1>© 2000 American Institute of Physics. All rights reserved.</s1></fA44><fA47 i1="01" i2="1"><s0>00-0020235</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>The Journal of the Acoustical Society of America</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>The Tokyo Opera City concert hall seats 1632, volume 15300 m3, and reverberation time, with audience and orchestra, 1.95 s. As part of the design process, measurements on CAD computer and 1:10 wooden models of the hall and full-sized materials samples were conducted over a 5-yr. period. The hall in plan is rectangular. The ceiling is a distorted pyramid, with its peak 28 m above the main floor and nearer the stage than the rear of the hall. This unique shape was analyzed on the models so that all interior surfaces combine to distribute sources on the stage uniformly over the seating areas and to yield optimum values for reverberation time (RT), early decay time (EDT), interaural cross-correlation coefficient (IACC<sub>E3</sub>), bass ratio (BR), initial-time-delay gap (ITDG), strength (G), and sound diffusion index (SDI) [for definitions see L. Beranek, Concert and Opera Halls: How They Sound (Acoustical Society of America, Woodbury, NY, 1996)]. On the long ceiling facing the stage, Schroeder QRD diffusers provide diffusion, eliminate a possible echo, and strengthen lateral reflections. 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Beranek</name></country><country name="États-Unis"><region name="Massachusetts"><name sortKey="Hidaka, Takayuki" sort="Hidaka, Takayuki" uniqKey="Hidaka T" first="Takayuki" last="Hidaka">Takayuki Hidaka</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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