Sound fields and subjective effects of scattering by periodic-type diffusers
Identifieur interne :
000541 ( PascalFrancis/Corpus );
précédent :
000540;
suivant :
000542
Sound fields and subjective effects of scattering by periodic-type diffusers
Auteurs : D. Takahashi ;
R. TakahashiSource :
-
Journal of sound and vibration [ 0022-460X ] ; 2002.
RBID : Pascal:03-0085520
Descripteurs français
English descriptors
Abstract
Walls and ceilings with quasi-periodic unevenness have often been designed to provide diffuse reflections. As for the shape and the size of this unevenness, with the help of some statistical treatment, it is possible to design effective diffusers with an intended directional pattern; this has great merit in sound fields with respect to spatial aspects. In addition to this spatial property of diffusion, reflection from the surface should not have particular response characteristics that may have a serious effect on our subjective experience. A well-known problem is "colouration" caused by interference between direct and reflected waves, which might create an odd tonal distortion in the case of a surface with periodic unevenness. This may be the reason that creating a periodic series of reflections at the receiver is generally avoided. Two issues need to be addressed: (1) is a periodic structure of reflection a major obstacle in practical use? and (2) to what degree is structural repetition acceptable? Clarification of these matters is necessary in order to design effective diffusers for practical applications. This study examines the physical properties of, and the subjective effects of tonal response to, sound fields caused by scattering from periodic-type diffusers.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
| pA |
| A01 | 01 | 1 | | @0 0022-460X |
|---|
| A02 | 01 | | | @0 JSVIAG |
|---|
| A03 | | 1 | | @0 J. sound vib. |
|---|
| A05 | | | | @2 258 |
|---|
| A06 | | | | @2 3 |
|---|
| A08 | 01 | 1 | ENG | @1 Sound fields and subjective effects of scattering by periodic-type diffusers |
|---|
| A09 | 01 | 1 | ENG | @1 Concert hall acoustics and opera house acoustics |
|---|
| A11 | 01 | 1 | | @1 TAKAHASHI (D.) |
|---|
| A11 | 02 | 1 | | @1 TAKAHASHI (R.) |
|---|
| A12 | 01 | 1 | | @1 ANDO (Y.) @9 ed. |
|---|
| A12 | 02 | 1 | | @1 POMPOLI (R.) @9 ed. |
|---|
| A14 | 01 | | | @1 Department of Architectural Systems, Graduate School of Engineering, Kyoto University, Yoshida Honmachi @2 Sakyo-ku, Kyoto 606-8501 @3 JPN @Z 1 aut. @Z 2 aut. |
|---|
| A15 | 01 | | | @1 Graduate School of Science and Technology, Kobe University, Rokkodai, Nada @2 Kobe 657-8501 @3 JPN @Z 1 aut. |
|---|
| A15 | 02 | | | @1 Faculty of Engineering, University of Ferrara, Via Saragat @2 44 100 Ferrara @3 ITA @Z 2 aut. |
|---|
| A20 | | | | @1 487-497 |
|---|
| A21 | | | | @1 2002 |
|---|
| A23 | 01 | | | @0 ENG |
|---|
| A43 | 01 | | | @1 INIST @2 11530 @5 354000106824750080 |
|---|
| A44 | | | | @0 0000 @1 © 2003 INIST-CNRS. All rights reserved. |
|---|
| A45 | | | | @0 16 ref. |
|---|
| A47 | 01 | 1 | | @0 03-0085520 |
|---|
| A60 | | | | @1 P @2 C |
|---|
| A61 | | | | @0 A |
|---|
| A64 | 01 | 1 | | @0 Journal of sound and vibration |
|---|
| A66 | 01 | | | @0 GBR |
|---|
| C01 | 01 | | ENG | @0 Walls and ceilings with quasi-periodic unevenness have often been designed to provide diffuse reflections. As for the shape and the size of this unevenness, with the help of some statistical treatment, it is possible to design effective diffusers with an intended directional pattern; this has great merit in sound fields with respect to spatial aspects. In addition to this spatial property of diffusion, reflection from the surface should not have particular response characteristics that may have a serious effect on our subjective experience. A well-known problem is "colouration" caused by interference between direct and reflected waves, which might create an odd tonal distortion in the case of a surface with periodic unevenness. This may be the reason that creating a periodic series of reflections at the receiver is generally avoided. Two issues need to be addressed: (1) is a periodic structure of reflection a major obstacle in practical use? and (2) to what degree is structural repetition acceptable? Clarification of these matters is necessary in order to design effective diffusers for practical applications. This study examines the physical properties of, and the subjective effects of tonal response to, sound fields caused by scattering from periodic-type diffusers. |
|---|
| C02 | 01 | X | | @0 001B40C55 |
|---|
| C03 | 01 | X | FRE | @0 Acoustique salle @5 02 |
|---|
| C03 | 01 | X | ENG | @0 Room acoustics @5 02 |
|---|
| C03 | 01 | X | SPA | @0 Acústica sala @5 02 |
|---|
| C03 | 02 | X | FRE | @0 Salle concert @5 03 |
|---|
| C03 | 02 | X | ENG | @0 Concert hall @5 03 |
|---|
| C03 | 02 | X | SPA | @0 Sala concierto @5 03 |
|---|
| C03 | 03 | X | FRE | @0 Plafond @5 05 |
|---|
| C03 | 03 | X | ENG | @0 Ceiling @5 05 |
|---|
| C03 | 03 | X | SPA | @0 Techo @5 05 |
|---|
| C03 | 04 | X | FRE | @0 Mur @5 06 |
|---|
| C03 | 04 | X | ENG | @0 Building wall @5 06 |
|---|
| C03 | 04 | X | SPA | @0 Muro @5 06 |
|---|
| C03 | 05 | X | FRE | @0 Diffuseur @5 07 |
|---|
| C03 | 05 | X | ENG | @0 Diffuser @5 07 |
|---|
| C03 | 05 | X | SPA | @0 Difusor @5 07 |
|---|
| C03 | 06 | X | FRE | @0 Réflexion diffuse @5 08 |
|---|
| C03 | 06 | X | ENG | @0 Diffuse reflection @5 08 |
|---|
| C03 | 06 | X | SPA | @0 Reflexión difusa @5 08 |
|---|
| C03 | 07 | X | FRE | @0 Réflexion onde @5 09 |
|---|
| C03 | 07 | X | ENG | @0 Wave reflection @5 09 |
|---|
| C03 | 07 | X | SPA | @0 Reflexión onda @5 09 |
|---|
| C03 | 08 | X | FRE | @0 4355 @2 PAC @4 INC @5 56 |
|---|
| N21 | | | | @1 048 |
|---|
| N82 | | | | @1 PSI |
|---|
|
|---|
| pR |
| A30 | 01 | 1 | ENG | @1 ICA: International Conference on Acoustics @2 17 @3 Rome ITA @4 2001-09-03 |
|---|
|
|---|
Format Inist (serveur)
| NO : | PASCAL 03-0085520 INIST |
|---|
| ET : | Sound fields and subjective effects of scattering by periodic-type diffusers |
|---|
| AU : | TAKAHASHI (D.); TAKAHASHI (R.); ANDO (Y.); POMPOLI (R.) |
|---|
| AF : | Department of Architectural Systems, Graduate School of Engineering, Kyoto University, Yoshida Honmachi/Sakyo-ku, Kyoto 606-8501/Japon (1 aut., 2 aut.); Graduate School of Science and Technology, Kobe University, Rokkodai, Nada/Kobe 657-8501/Japon (1 aut.); Faculty of Engineering, University of Ferrara, Via Saragat/44 100 Ferrara/Italie (2 aut.) |
|---|
| DT : | Publication en série; Congrès; Niveau analytique |
|---|
| SO : | Journal of sound and vibration; ISSN 0022-460X; Coden JSVIAG; Royaume-Uni; Da. 2002; Vol. 258; No. 3; Pp. 487-497; Bibl. 16 ref. |
|---|
| LA : | Anglais |
|---|
| EA : | Walls and ceilings with quasi-periodic unevenness have often been designed to provide diffuse reflections. As for the shape and the size of this unevenness, with the help of some statistical treatment, it is possible to design effective diffusers with an intended directional pattern; this has great merit in sound fields with respect to spatial aspects. In addition to this spatial property of diffusion, reflection from the surface should not have particular response characteristics that may have a serious effect on our subjective experience. A well-known problem is "colouration" caused by interference between direct and reflected waves, which might create an odd tonal distortion in the case of a surface with periodic unevenness. This may be the reason that creating a periodic series of reflections at the receiver is generally avoided. Two issues need to be addressed: (1) is a periodic structure of reflection a major obstacle in practical use? and (2) to what degree is structural repetition acceptable? Clarification of these matters is necessary in order to design effective diffusers for practical applications. This study examines the physical properties of, and the subjective effects of tonal response to, sound fields caused by scattering from periodic-type diffusers. |
|---|
| CC : | 001B40C55 |
|---|
| FD : | Acoustique salle; Salle concert; Plafond; Mur; Diffuseur; Réflexion diffuse; Réflexion onde; 4355 |
|---|
| ED : | Room acoustics; Concert hall; Ceiling; Building wall; Diffuser; Diffuse reflection; Wave reflection |
|---|
| SD : | Acústica sala; Sala concierto; Techo; Muro; Difusor; Reflexión difusa; Reflexión onda |
|---|
| LO : | INIST-11530.354000106824750080 |
|---|
| ID : | 03-0085520 |
|---|
Links to Exploration step
Pascal:03-0085520
Le document en format XML
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</keywords><front><div type="abstract" xml:lang="en">Walls and ceilings with quasi-periodic unevenness have often been designed to provide diffuse reflections. As for the shape and the size of this unevenness, with the help of some statistical treatment, it is possible to design effective diffusers with an intended directional pattern; this has great merit in sound fields with respect to spatial aspects. In addition to this spatial property of diffusion, reflection from the surface should not have particular response characteristics that may have a serious effect on our subjective experience. A well-known problem is "colouration" caused by interference between direct and reflected waves, which might create an odd tonal distortion in the case of a surface with periodic unevenness. This may be the reason that creating a periodic series of reflections at the receiver is generally avoided. Two issues need to be addressed: (1) is a periodic structure of reflection a major obstacle in practical use? and (2) to what degree is structural repetition acceptable? Clarification of these matters is necessary in order to design effective diffusers for practical applications. This study examines the physical properties of, and the subjective effects of tonal response to, sound fields caused by scattering from periodic-type diffusers.</div>
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<ET>Sound fields and subjective effects of scattering by periodic-type diffusers</ET>
<AU>TAKAHASHI (D.); TAKAHASHI (R.); ANDO (Y.); POMPOLI (R.)</AU>
<AF>Department of Architectural Systems, Graduate School of Engineering, Kyoto University, Yoshida Honmachi/Sakyo-ku, Kyoto 606-8501/Japon (1 aut., 2 aut.); Graduate School of Science and Technology, Kobe University, Rokkodai, Nada/Kobe 657-8501/Japon (1 aut.); Faculty of Engineering, University of Ferrara, Via Saragat/44 100 Ferrara/Italie (2 aut.)</AF>
<DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Journal of sound and vibration; ISSN 0022-460X; Coden JSVIAG; Royaume-Uni; Da. 2002; Vol. 258; No. 3; Pp. 487-497; Bibl. 16 ref.</SO>
<LA>Anglais</LA>
<EA>Walls and ceilings with quasi-periodic unevenness have often been designed to provide diffuse reflections. As for the shape and the size of this unevenness, with the help of some statistical treatment, it is possible to design effective diffusers with an intended directional pattern; this has great merit in sound fields with respect to spatial aspects. In addition to this spatial property of diffusion, reflection from the surface should not have particular response characteristics that may have a serious effect on our subjective experience. A well-known problem is "colouration" caused by interference between direct and reflected waves, which might create an odd tonal distortion in the case of a surface with periodic unevenness. This may be the reason that creating a periodic series of reflections at the receiver is generally avoided. Two issues need to be addressed: (1) is a periodic structure of reflection a major obstacle in practical use? and (2) to what degree is structural repetition acceptable? Clarification of these matters is necessary in order to design effective diffusers for practical applications. This study examines the physical properties of, and the subjective effects of tonal response to, sound fields caused by scattering from periodic-type diffusers.</EA>
<CC>001B40C55</CC>
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<ED>Room acoustics; Concert hall; Ceiling; Building wall; Diffuser; Diffuse reflection; Wave reflection</ED>
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