Welcome Contents Back 1

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Welcome Contents Back 1"

Transcription

1 Welcome Contents Back 1 Attractive room acoustic design for multi-purpose halls H. Drotleff, X. Zhou 1. Introduction Multi-purpose halls serve various uses, e.g., open plan offices, conferences, exhibitions, speech and music performances. Attractive interior design and comfort are major criteria for the acceptance of such environments. Comfort of a hall consists of climate-, light-, and acoustic aspects. Acoustic comfort is of particular importance where the major use is set on communication. Actual architectural trends emphasise even, smooth and transparent surfaces, for instance glass, concrete and natural stone. Usually these materials are acoustically reflecting. Without further treatment the consequence is a reverberant environment, where among others, a special kind of "party effect" can be experienced. This becomes noticeable with increasing number of people talking in a room. In an unconditioned or wrongly conditioned environment the interference from other conversations makes listening more difficult. In case of unsuitable geometry of the hall, reflecting surfaces may also lead to distinct echoes. The realisation of a desired attractive interior design, however, asks for new acoustic materials which are thin, flexible, even, versatile, transparent and inexpensive. Furthermore, these materials should exhibit proper acoustic absorbing and / or reflecting properties. 2. Acoustic requirements and suitable materials Depending on the use of a hall, an adequate reverberation time is required. For instance, assembly halls and conference rooms require a short reverberation time. In case of conference rooms attention must also be paid to speech intelligibility. Music performances require a somewhat longer reverberation time, but also other quantities such as clarity, lateral fraction etc. must be taken into account. Multi-purpose use should, however, be realised with only one well- Welcome Contents Back 1

2 Contents First Page Back 2 defined reverberation time. A compromise is sought for every single auditorium in the following way: - a carefully chosen moderate reverberation time, - minimum variation over the whole frequency spectrum, - a but small increase towards low frequencies. Mid and high frequency absorption is often inevitably provided in rooms by carpets, drapes, furniture and persons, whereas low frequency absorption is rather scarce. Low frequency problems, down to 50 Hz, in room acoustics have gained importance over recent years [1]. Therefore, effective absorbers for this frequency region, which also enable attractive design, were needed. Following this demand a whole family of novel absorbers has been developed at Fraunhofer- IBP [1], [2]. One of them, the Compound Panel Absorber CPA, aims primarily at the low and mid frequency range. Structure details and absorption coefficient of the CPA are given in [2]. The usual element size of a CPA is 1.5 m x 1.0 m. Although a low frequency absorber, the thickness of such an element is only 10 cm. The Broadband Compact Absorber BCA [2] stands for an extension of the CPA to the high frequency region. The absorption behaviour is also shown in reference [2]. Its thickness increases by 5 to 15 cm. Since both aforementioned absorbers are relatively thin, they can easily be mounted on walls, behind suspended ceilings or below hollow floors as long as sound transmission through these covering construction elements is accomplished. If desired, these absorbers can be hidden behind acoustically transparent layers such as sufficiently perforated gypsum board, timber or metal panels. These layers represent an optical coverage, so that a homogeneous wall surface is obtained. Additionally, these novel absorbers can be integrated in furniture or used as white-, or pin boards. Microperforated Panel Absorbers, Microperforated Foil Absorbers, Microperforated Suspended Ceilings [2] are also perfectly suited for attractive interior design. Since these absorbers can be made of almost any material e.g. acrylic glass, metal, plastic foil or timber they fit into nearly any interior design concept. The absorption features of all types of Microperforated Absorbers are tuneable to the respective requirements merely by choosing its various geometrical parameters. Contents First Page Back 2

3 Contents First Page Back 3 3. Demonstration projects It will be shown by means of already realized projects how acoustic comfort can reconcile with attractive interior design. 3.1 Training Centre A former production hall built in 1903 with a volume of about m³, Fig. 1, should be converted into an open plan office, which is also used as a conference room. The hall was granted the status of a historic monument. The architectural design therefore called for even and homogeneous surfaces which emphasise the original appearance. No conventional acoustic wall treatment with perforated panels etc. was allowed. The ceiling which is equipped with stucco, must not be touched. Since the multi-purpose use emphasises speech performances the required reverberation time in the frequency end between 250 Hz and 2.0 khz was set to be 1.5 seconds ± 10 %. To the lower frequency range, down to 63 Hz, the increase in reverberation time should be as small as possible. The reverberation time measured in the untreated room as depicted in Fig. 2 exceeds 7 seconds. In order to account for low frequency absorption in accordance with the requested architectural design, 58 m² of CPA were installed onto the front and rear walls, Fig. 3 and Fig. 4. Even and homogeneous wall surfaces were achieved by "hiding" these absorbers behind an acoustically transparent panelling. The panel is made of perforated gypsum board covered by a fabric on its view face. The fabric itself was painted in order to imitate the original appearance. An optically opaque and homogeneous wall with a depth of only 12 cm was thus created. Since a low frequency absorber was covered, the perforation of the gypsum board needs not to exceed 20 %. Its estimated transmission coefficient is given in Fig. 5. Additional 54 m² CPA were installed underneath the hollow floor along the walls. Again, the floor was acoustically transparent enough for frequencies below 500 Hz. Onto the historic crane track, which should not be removed, another 32 m² CPA could be installed (Fig. 3). In order to account for absorption in the mid and high frequencies, about 58 m² of BCA were used. A large part of them was installed behind the projection screen (Fig. 3). Up to now, only two axes of the room were treated. Thus, in order to avoid echoes and to adjust the reverberation time at mid and high fre- Contents First Page Back 3

4 Contents First Page Back 4 quencies, the large windows in the side walls were treated with Microperforated Foil Absorbers as mobile roller blinds, Fig. 6. By using a rather small amount of area of the scarce available surfaces, about 20% of the surface were treated, and incorporating innovative absorbent materials in multi-use installations, a reverberation time was achieved which suits multi-purpose uses (Fig. 2). 3.2 Monastery Bronnbach Another historic hall (volume about m³) which over the last decades has been used as a museum is shown in Fig. 7. Additional to this use, it was intended by the user to utilise the room primarily as a concert hall for chamber music and secondarily for speech performances. As is typical for a historic monument, all the surrounding surfaces are rather reflective. Because the resulting reverberation time is of the order of 7 seconds up to 1.0 khz (Fig. 8) the desired use was virtually impossible. A few attempts by the user were not successful. Thus an improvement was necessary. The architectural design again requested even and homogeneous surfaces. Only a small part of the wall surfaces was made available for acoustic treatment. Especially the ceiling exhibiting over the whole area historic paintings and the front wall and large parts of the side walls must not be treated. The original floor is made of stone. The desired reverberation time was chosen to become approximately 1.5 seconds between 250 Hz and 2 khz. Towards the lower frequencies the reverberation time should increase but slightly. Furthermore, for chamber music performances the "clarity" in the audience must lie between 2 db and 3 db. With altogether only 97 m² stationary and movable absorbers of the kind CPA and BCA plus chairs for the audience, the envisaged reverberation time was achieved (Fig. 7 and Fig. 9). Allowing for strong early reflections from the side walls and the ceiling, the "clarity" (C80 (3) according to [3]) was increased to acceptable values between 1.5 db and 3 db (Fig. 10). The absorbers located on the side walls were covered by an acoustically transparent (perforated) metal sheet. For speech performances additional mobile absorbers may be introduced on the front wall. They are covered with the same material. Lean constructions (depth of 10 cm) were thus made to fit into the architectural design. In order to avoid echoes along the longitudinal axis of the room, the rear wall was treated with BCA, which were "hidden" behind a perforated gypsum board (Fig. 7). Contents First Page Back 4

5 Contents First Page Back 5 Altogether about 10% of the surface were treated. The first chamber music performance after restoration, with "Brandenburgische Konzerte" by J.S. Bach revealed a very positive resonance by the audience, the musicians and the conductor. 3.3 University of Freiburg The assembly hall of the University of Freiburg (Fig. 11) is used for academic celebrations. The main purpose of the hall serves speech performances, which are occasionally accompanied by music performances. While the hall was redecorated, the architects found that, with the new design the room-acoustic environment in the hall is not suitable for the main purpose. Thus, after the redecoration was partly finished, an acoustical design was needed which fits into the already fixed architectural design. The hall consists of two connected rooms. Its shape serves as an example for echoes in a standard textbook on room acoustics [4].The volume of both rooms is about m³. In the larger room a 5 cm thick false ceiling made of gypsum was installed. The ceiling exhibits a shape of a half ellipsoid. Between the false ceiling and the boundaries of the main room a distance of about 40 cm is left. In this room large windows are situated on both sides. The side walls, floor and ceiling were thus not available for acoustic treatment. The aimed reverberation time was chosen to be approximately 1.3 seconds in the frequency range between 250 Hz and 4000 Hz. In order to support speech performances the reverberation time should be as even as possible over all frequencies. To account for low frequency absorption 150 m² of CPA (both sides covered with metal sheets) were installed as baffles in the hollow space behind the false ellipsoid ceiling. Furthermore, transparent Microperforated Panel Absorber (ca. 45 m²) were mounted as inner windows on both sides of the main room (Fig. 11). These absorbers are tuned to low and mid frequencies, too. The light transmission into the room is not hindered. In order to avoid echoes along the longitudinal axis of the room, front and rear walls were treated with BCA (ca. 33 m²). For further damping the niches next to the organ were covered with the same absorbent material (ca. 30 m²). The absorbers were hidden behind acoustically transparent but optical opaque panelling consisting of a perforated gypsum board covered with cloth. All the above listed measures do not interfere Contents First Page Back 5

6 Contents First Page Back 6 with the architectural design. Except for the Microperforated Panel Absorber, all the absorbent materials are hidden optically. The resulting reverberation time (including 270 scantily upholstered chairs) is depicted in Fig Office Innovation Centre A hall (volume about m³) which is used as exhibition or assembly hall is shown in Fig. 13. The use of this hall changes rapidly in time. It was found that the hall was hard to use for speech performances as can be seen in the reverberation time chart in Fig. 14. Since the hall reveals already low frequency absorption (due to the relatively light metal walls and ceiling) a fast and really inexpensive solution for mid and high frequencies was proposed and accomplished. With only approximately 160 m² of transparent Microperforated Foil Absorbers on the ceiling (Fig. 13) the reverberation time was reduced to 2 seconds (Fig. 14). The absorber hangs as a single layer approximately 1.5 m down the ceiling leaving sufficient free space for the lights. The achieved acoustical environment allows for speech performances by using electro-acoustical reinforcement. 4. Summary Attractive interior design and comfort are both necessities for well-being in multipurpose halls. A carefully chosen reverberation time with little variation with frequency down to 63 Hz is a first step towards acoustic comfort. Depending on the main use, other aspects such as clarity etc. must also be taken into account. A continuing development approach [5] lead to a family of novel absorbers. It has been shown by means of realized projects that attractive interior design combined with acoustic comfort of multi-purpose halls can be accomplished with innovative fibreless absorbers. The handicap of acoustical design at low frequencies, because of the depth of the absorbers, can be overcome with rather thin and compact absorbers. Additional to the acoustic quality, the aforementioned absorbers exhibit characteristics such as: even surfaces, flexibility, transparency, versatile use. Qualities which assist the designer's task to realize attractive interior design. Contents First Page Back 6

7 Contents First Page Back 7 5. References [1] H.V. Fuchs, X. Zha, X. Zhou, H. Drotleff: Creating low-noise environments in communication rooms. Applied Acoustics (2001) (in print). [2] H.V. Fuchs: Alternative fibreless absorbers New tools and materials for noise control an acoustic comfort. acta-acustica ACUSTICA (2001) (in print) [3] L.L. Beranek: Concert and Opera Halls: How they sound. Woodbury, Acoustical Society of America, 1996, 570 [4] L. Cremer, H.A. Müller: Die wissenschaftlichen Grundlagen der Raumakustik, Band I. Stuttgart, Hirzel Verlag, 1978, 61 ff. [5] H.V. Fuchs: From advanced acoustic research to novel silencing procedures and innovative sound treatments acta-acustica ACUSTICA (2001) (in print) Contents First Page Back 7

8 Contents First Page Back 8 6. Figures Fig. 1: Photo of the training centre, a former production hall before being refurbished into a multipurpose hall Contents First Page Back 8

9 Contents First Page Back Reverberation Time [s] Frequency [Hz] Untreated hall Treated hall Prediction Fig. 2: Reverberation time as a function of frequency measured before and after renovation in the training centre according to Fig. 1 Contents First Page Back 9

10 Contents First Page Back 10 CPA behind optically opaque panelling Historic crane track Projection screen "filled" with BCA Fig. 3: View onto the rear wall and the projection screen Contents First Page Back 10

11 Contents First Page Back 11 CPA Fig. 4: Sketch of the rear wall equipped with Compound-Panel-Absorber in the training centre Contents First Page Back 11

12 Contents First Page Back 12 Transmission Coefficient τ Frequency [Hz] Perforated gypsum board Perforated gypsum board covered by fabric Fig. 5: Estimated transmission coefficient of the perforated gypsum board panelling covered by painted fabric Contents First Page Back 12

13 Contents First Page Back 13 CPA behind optically opaque panelling Microperforated Foil Absorber Fig. 6: Microperforated Foil Absorber as mobile roller blinds in front of the windows of the training centre Contents First Page Back 13

14 Contents First Page Back 14 BCA behind panelling CPA Fig. 7: Monastery Bronnbach. Historic multi-purpose hall used for music an speech performances Contents First Page Back 14

15 Contents First Page Back Reverberation Time [s] Frequency [Hz] Untreated hall Treated hall Prediction Fig. 8: Monastery Bronnbach. Reverberation time as a function of frequency measured before and after renovation Contents First Page Back 15

16 Contents First Page Back 16 BCA CPA BCA Fig. 9: Monastery Bronnbach. Sketch of side walls treated with CPA and BCA modules Contents First Page Back 16

17 Contents First Page Back dB -0.9dB -1.1dB 0.6dB -3.0dB -1.5dB 3.3dB 1.0dB 3 m 2.8dB Fig. 10: Monastery Bronnbach. Measured "clarity" (C80 (3) ) in the audience after acoustical treatment Contents First Page Back 17

18 Contents First Page Back 18 BCA Transparent Microperforated Panel Absorber Fig. 11: Assembly hall of the University of Freiburg Contents First Page Back 18

19 Contents First Page Back 19 3 Reverberation Time [s] Frequency [Hz] Fig. 12: Assembly hall. Measured reverberation time after acoustical treatment Contents First Page Back 19

20 Contents First Page Back 20 Transparent Microperforated Foil Absorber Fig. 13: Office Innovation Centre. View into the exhibition (conference) hall treated with transparent Microperforated Foil Absorber Contents First Page Back 20

21 Contents First Page Back Reverberation Time [s] Frequency [Hz] Untreated hall Treated hall Fig. 14: Office Innovation Centre. Measured reverberation time before and after acoustical treatment Contents First Page Back 21

Acoustical Design for Concert Hall in the Science and Art Centre of Xiamen University

Acoustical Design for Concert Hall in the Science and Art Centre of Xiamen University Acoustical Design for Concert Hall in the Science and Art Centre of Xiamen University Yuezhe Zhao, Shuoxian Wu State Key Laboratory of Subtropical Building Sciences, South China University of Technology,

More information

ROOM ACOUSTICS DESIGN. Room Acoustics Design Intent: Appropriate Articulation

ROOM ACOUSTICS DESIGN. Room Acoustics Design Intent: Appropriate Articulation ROOM ACOUSTICS DESIGN http://mikebm.files.wordpress.com/2008/06/walt-disney-hall-1.jpg Ball State Architecture ENVIRONMENTAL SYSTEMS 1 Grondzik 1 Room Acoustics Design Intent: Appropriate Articulation

More information

Acoustical Design of a Multi-Purpose Hall for Natural and Amplified Sound

Acoustical Design of a Multi-Purpose Hall for Natural and Amplified Sound Acoustical Design of a Multi-Purpose Hall for Natural and Amplified Sound Dirun Ergin Talayman Acoustics Ltd, Istanbul, Turkey. Zerhan Yüksel Can Yıldız Technical University, Istanbul, Turkey. Summary

More information

2011-06-13. Acoustic design with wall acoustic solutions

2011-06-13. Acoustic design with wall acoustic solutions 2011-06-13 Acoustic design with wall acoustic solutions Introduction A suspended ceiling is by far the most common acoustical treatment in a room. In most cases this is also a sufficient solution to create

More information

THE ACOUSTIC DESIGN OF THE NEW DRAMA HOUSE FOR THE ROYAL THEATRE IN COPENHAGEN

THE ACOUSTIC DESIGN OF THE NEW DRAMA HOUSE FOR THE ROYAL THEATRE IN COPENHAGEN THE ACOUSTIC DESIGN OF THE NEW DRAMA HOUSE FOR THE ROYAL THEATRE IN COPENHAGEN A C Gade B Mortensen Gade & Mortensen Akustik A/S, Charlottenlund, Denmark,acg@gade-mortensen.dk Gade & Mortensen Akustik

More information

Acoustic analysis by computer simulation for building restoration

Acoustic analysis by computer simulation for building restoration Acoustic analysis by computer simulation for building restoration Enrico Dassori & Tiziana Ottonello Istituto di Architettura e tecnica Urbanistica (IATU), Università di Genova Architecture and town planing

More information

How does Architecture Affect the Acoustics of a Space

How does Architecture Affect the Acoustics of a Space How does Architecture Affect the Acoustics of a Space Grade Level This lesson plan was developed for a 9 th grade Physical Science Class. Objectives To develop aural senses of spatial awareness To understand

More information

CARMEN R in the Norwich Theatre Royal, UK

CARMEN R in the Norwich Theatre Royal, UK CARMEN R in the Norwich Theatre Royal, UK C. Rougier a, I. Schmich a, P. Chervin a and P. Gillieron b a CSTB, 24, Rue Joseph Fourier, 38400 Saint Martin D Hères, France b Paul Gillieron Acoustic Design,

More information

THE ACOUSTICS OF THE "NUOVO TEATRO COMUNALE" IN CAGLIARI

THE ACOUSTICS OF THE NUOVO TEATRO COMUNALE IN CAGLIARI Roberto Pompoli(1), Angelo Farina(2), Patrizio Fausti(1) (1) Istituto di Ingegneria, University of Ferrara, Italy (2) Dipartimento di Ingegneria Industriale, University of Parma, Italy 1. ABSTRACT In 1967,

More information

8 Room and Auditorium Acoustics

8 Room and Auditorium Acoustics 8 Room and Auditorium Acoustics Acoustical properties of rooms and concert halls are mainly determined by the echo that depends on the reflection and absorption of sound by the walls. Diffraction of sound

More information

On a new, on/off broadband absorber system for music schools and other multipurpose facilities

On a new, on/off broadband absorber system for music schools and other multipurpose facilities On a new, on/off broadband absorber system for music schools and other multipurpose facilities Niels W. Adelman-Larsen Flex Acoustics, Diplomvej 377, 2800 Kgs. Lyngby, Denmark, nwl@flexac.com Jens Jørgen

More information

Acoustics of Modern and Old Museums

Acoustics of Modern and Old Museums Denver, Colorado NOISE-CON 2013 2013 August 26-28 Acoustics of Modern and Old Museums António P.O. Carvalho Hélder J.S. Gonçalves Luísa M.M. Garcia Laboratory of Acoustics, College of Engineering, University

More information

>1@$UFKLWHFWXUHDFRXVWLFVPHDVXUHPHQWVDQGGHVLJQDFKXUFK DQGDQDXGLWRULXP

>1@$UFKLWHFWXUHDFRXVWLFVPHDVXUHPHQWVDQGGHVLJQDFKXUFK DQGDQDXGLWRULXP 7KHQG,QWHUQDWLRQDO&RQJUHVVDQG([SRVLWLRQRQ1RLVH&RQWURO(QJLQHHULQJ -HMX,QWHUQDWLRQDO&RQYHQWLRQ&HQWHU6HRJZLSR.RUHD $XJXVW >1@$UFKLWHFWXUHDFRXVWLFVPHDVXUHPHQWVDQGGHVLJQDFKXUFK DQGDQDXGLWRULXP First Author:

More information

ACOUSTICS IN OPEN-PLAN OFFICES A LABORATORY STUDY. Petra Larm, Jukka Keränen, Riikka Helenius, Jarkko Hakala, Valtteri Hongisto

ACOUSTICS IN OPEN-PLAN OFFICES A LABORATORY STUDY. Petra Larm, Jukka Keränen, Riikka Helenius, Jarkko Hakala, Valtteri Hongisto ACOUSTICS IN OPEN-PLAN OFFICES A LABORATORY STUDY Petra Larm, Jukka Keränen, Riikka Helenius, Jarkko Hakala, Valtteri Hongisto Finnish Institute of Occupational Health Laboratory of Ventilation and Acoustics

More information

VIRTUAL SPACE 4D PROJECT: THE ROOM ACOUSTICAL TOOL. J. Keränen, P. Larm, V. Hongisto

VIRTUAL SPACE 4D PROJECT: THE ROOM ACOUSTICAL TOOL. J. Keränen, P. Larm, V. Hongisto VIRTUAL SPACE 4D PROJECT: THE ROOM ACOUSTICAL TOOL David Oliva University of Turku Department of Physics FIN-20014 Turku, Finland. david.elorza@ttl.fi J. Keränen, P. Larm, V. Hongisto Finnish Institute

More information

Lab #6 Room Acoustics

Lab #6 Room Acoustics EQUIPMENT Physics of Music PHY103 Lab Manual Lab #6 Room Acoustics Tape measures Noise making devices (pieces of wood for clappers). Microphones, stands, preamps connected to computers. Extra XLR microphone

More information

Acoustic design according to room type

Acoustic design according to room type according to room type The purpose of the room is decisive for the acoustic environment to be created. In rooms for speech, such as classrooms and auditoriums, it is important to ensure a good level of

More information

Noise control. Sound components. Transmission loss TL. reflected (reverberated) ρ absorbed α transmitted τ. TL = 10 Log(1/τ) = -10 Log τ.

Noise control. Sound components. Transmission loss TL. reflected (reverberated) ρ absorbed α transmitted τ. TL = 10 Log(1/τ) = -10 Log τ. Sound components reflected (reverberated) ρ absorbed α transmitted τ Transmission loss TL TL = 10 Log(1/τ) = -10 Log τ Incident sound Transmitted sound Absorbed sound Reverberated sound Mass law (Berger

More information

Direct and Reflected: Understanding the Truth with Y-S 3

Direct and Reflected: Understanding the Truth with Y-S 3 Direct and Reflected: Understanding the Truth with Y-S 3 -Speaker System Design Guide- December 2008 2008 Yamaha Corporation 1 Introduction Y-S 3 is a speaker system design software application. It is

More information

Acoustic Design Practices for Sustainable Buildings

Acoustic Design Practices for Sustainable Buildings Acoustics 2008 Geelong, Victoria, Australia 24 to 26 November 2008 Acoustics and Sustainability: How should acoustics adapt to meet future demands? Acoustic Design Practices for Sustainable Buildings Danny

More information

Acoustical Design of a Conference Hall

Acoustical Design of a Conference Hall Acoustical Design of a Conference Hall Toma DOINA Romanian Broadcasting Comp., Technical Department, Bucharest, ROMANIA, email toma_doina@yahoo.com Mihăiescu IOANA IM Architecture Center, Reşiţa, ROMANIA,

More information

Office acoustics. How to effectively design the room acoustics of offices. AN INFORMATION BROCHURE OF

Office acoustics. How to effectively design the room acoustics of offices. AN INFORMATION BROCHURE OF 8. Office acoustics How to effectively design the room acoustics of offices. AN INFORMATION BROCHURE OF 8. Office acoustics T O P I C S Foreword 3 Room acoustics versus building acoustics 5 Fundamental

More information

Acoustic design of schools: performance standards. From 2003 to 2014: a brief guide to the changes in BB 93. by Jack Harvie-Clark, 9th January 2015

Acoustic design of schools: performance standards. From 2003 to 2014: a brief guide to the changes in BB 93. by Jack Harvie-Clark, 9th January 2015 Acoustic design of schools: performance standards From 2003 to 2014: a brief guide to the changes in BB 93. by Jack Harvie-Clark, 9th January 2015 This document should be read in conjunction with the new

More information

SonoPerf Micro-slotted, absorbent, acoustic metal panels

SonoPerf Micro-slotted, absorbent, acoustic metal panels SonoPerf Micro-slotted, absorbent, acoustic metal panels www.andritz.com/sonoperf SonoPerf Sonitus meets Perforation Acoustic metal panels with a new design Advantages Sound absorption even without acoustic

More information

Acoustic design according to room shape

Acoustic design according to room shape Acoustic design according to room shape The shape of the room defines the movement of the sound waves within the room. Placement of acoustic materials should be determined by the way the sound moves in

More information

Characterization of acoustics in open offices - four case studies

Characterization of acoustics in open offices - four case studies Characterization of acoustics in open offices - four case studies J. S Keränen, P. Virjonen and V. O Hongisto Finnish Institute of Occupational Health, Lemminkäisenkatu 14-18 B, 5 Turku, Finland jukka.keranen@ttl.fi

More information

"Eco Kyuon" -- Microperforated Sound Absorbing Panel

Eco Kyuon -- Microperforated Sound Absorbing Panel "Eco Kyuon" -- Microperforated Sound Absorbing Panel Ichiro YAMAGIWA *1, Masaji HORIO *2, Shigeharu NAKAOKA *2, Takahiro YAMADA *2 *1 Mechanical Engineering Research Laboratory, Technical Development Group

More information

MULTI-PURPOSE HALLS AND VARIABLE ACOUSTICS

MULTI-PURPOSE HALLS AND VARIABLE ACOUSTICS MULTI-PURPOSE HALLS AND VARIABLE ACOUSTICS PACS REFERENCE: 43.55.Fw, 43.55.Gx. Orlowski, Rafal Arup Acoustics St Giles Hall Pound Hill Cambridge UK +44(0)1223 531100 +44(0)1223 361258 raf.orlowski@arup.com

More information

The Acoustics of Indoor Aquatic Facilities: How Improving Sound Levels Impacts Both our Physiological and Psychological Well Being Jeffrey Madison

The Acoustics of Indoor Aquatic Facilities: How Improving Sound Levels Impacts Both our Physiological and Psychological Well Being Jeffrey Madison The Acoustics of Indoor Aquatic Facilities: How Improving Sound Levels Impacts Both our Physiological and Psychological Well Being Jeffrey Madison A lifelong musician, Jeff began his career in 1992 when

More information

CASE STUDY. Sarakasi Theatre Nairobi, Kenya Room Acoustical Measurements and Modelling. Africa Room Acoustics DIRAC and ODEON

CASE STUDY. Sarakasi Theatre Nairobi, Kenya Room Acoustical Measurements and Modelling. Africa Room Acoustics DIRAC and ODEON CASE STUDY Sarakasi Theatre Nairobi, Kenya Room Acoustical Measurements and Modelling Africa Room Acoustics DIRAC and ODEON In November 2008, room acoustical measurements were performed inside the Sarakasi

More information

Building Technology and Architectural Design. Program 4th lecture 9.00-9.45 Case studies Room Acoustics. 10.00 10.45 Case studies Room Acoustics

Building Technology and Architectural Design. Program 4th lecture 9.00-9.45 Case studies Room Acoustics. 10.00 10.45 Case studies Room Acoustics Building Technology and Architectural Design Program 4th lecture 9.00-9.45 Case studies Room Acoustics 9.45 10.00 Break 10.00 10.45 Case studies Room Acoustics Lecturer Poul Henning Kirkegaard 10-10-2006

More information

SOUND ABSORPTION INNOVATIVE. style, customise, practical.

SOUND ABSORPTION INNOVATIVE. style, customise, practical. INNOVATIVE SOUND ABSORPTION style, customise, practical. ACOUSTIC SOLUTIONS cc has developed an advanced acoustic panelling system for wall and ceiling finishes. The LINEA system offers superior sound

More information

Affordable Sports Halls

Affordable Sports Halls Creating a sporting habit for life Appendix 5 Acoustics (To be read in conjunction with the main document) Speech Intelligibility with 40dBA Ambient Noise (BB93 Compliant) Affordable Sports Halls August

More information

Casa da Musica, a new concert hall for Porto, Portugal

Casa da Musica, a new concert hall for Porto, Portugal Audio Engineering Society Conference Paper Presented at the 21st Conference 22 June 1 3 St. Petersburg, Russia Casa da Musica, a new concert hall for Porto, Portugal Van Luxemburg, L.C.J 1,2, Hak, C.C.J.M

More information

ACOUSTIC DESIGN - ROOMS FOR SPEECH

ACOUSTIC DESIGN - ROOMS FOR SPEECH Auckland Christchurch Kuala Lumpur Melbourne Sydney Wellington www.marshallday.com ACOUSTIC DESIGN - ROOMS FOR SPEECH EVER BEEN AT A LECTURE OR CONFERENCE AND FOUND IT DIFFICULT TO UNDERSTAND WHAT IS BEING

More information

SPEECH INTELLIGIBILITY and Fire Alarm Voice Communication Systems

SPEECH INTELLIGIBILITY and Fire Alarm Voice Communication Systems SPEECH INTELLIGIBILITY and Fire Alarm Voice Communication Systems WILLIAM KUFFNER, M.A. Sc., P.Eng, PMP Senior Fire Protection Engineer Director Fire Protection Engineering October 30, 2013 Code Reference

More information

Acoustics for Schools

Acoustics for Schools Acoustics for Schools The SRS Guide to BB93 and Building Acoustics for Education Uniclass A4:D71:N37 CI/SfB 71 (Ajv)(P) THE SRS SCHOOLS PLEDGE: FREE ACOUSTIC ADVICE, DESIGN AND SPECIFICATIONS FOR ALL UK

More information

The Simulation of Acoustics by ODEON in the Acoustic Design. of Assembly Hall

The Simulation of Acoustics by ODEON in the Acoustic Design. of Assembly Hall The Simulation of Acoustics by ODEON in the Acoustic Design of Assembly Hall Yi Xu 1, Gang Liu 1 1 School of architecture, Tianjin University, Tianjin, Tianjin, 300072, China ABSTRACT Because of keeping

More information

THE MARIA REGINA DELLA PACE CHURCH IN PERUGIA: ACOUSTIC MEASUREMENTS AND CORRECTION DESIGN

THE MARIA REGINA DELLA PACE CHURCH IN PERUGIA: ACOUSTIC MEASUREMENTS AND CORRECTION DESIGN THE MARIA REGINA DELLA PACE CHURCH IN PERUGIA: ACOUSTIC MEASUREMENTS AND CORRECTION DESIGN Cinzia Buratti*, Rita Mariani, Irene Costarelli Department of Industrial Engineering, Perugia University, Via

More information

mitesco acoustic panelling

mitesco acoustic panelling mitesco acoustic panelling about mitesco caimi brevetti Founded in 1949, Caimi Brevetti S.p.A. is one of the main design-oriented production realities in Europe in the sector of furniture and furnishings

More information

Timber Acoustic Paneling

Timber Acoustic Paneling Timber Acoustic Paneling Tel: 045 403909 Mob: 087 9113326 Email: info@acousticgrg.ie LAWAPAN-ACOUSTICS BY MEANS OF HOLES OR SLOTS LAWAPAN, EASY TO REMOVE Lowered ceilings offer the space for utilities

More information

SõN Acoustics Panel Specifications

SõN Acoustics Panel Specifications SõN Acoustics Panel Specifications About SõN Acoustics SõN Acoustics are high-performance panels that provide acoustical control by absorbing echo and excessive reverberation in a room. These panels are

More information

Acoustic Insulation Board

Acoustic Insulation Board Acoustic Insulation Board Heraklith Woodwool decorative insulation panels are thermal insulation boards that have been designed primarily to reduce sound absorption. Because they will be visible, usually

More information

A COMPUTATIONAL METHOD FOR ANALYSIS AND DESIGN OF ACOUSTIC ABSORBERS AND LOW FREQUENCY TRANSMISSION LOSS

A COMPUTATIONAL METHOD FOR ANALYSIS AND DESIGN OF ACOUSTIC ABSORBERS AND LOW FREQUENCY TRANSMISSION LOSS A COMPUTATIONAL METHOD FOR ANALYSIS AND DESIGN OF ACOUSTIC ABSORBERS AND LOW FREQUENCY TRANSMISSION LOSS S Colam G Leembruggen Arup Acoustics, Cambridge, UK Acoustics Directions, Sydney, Australia 1 INTRODUCTION

More information

Acoustical Design of Rooms for Speech

Acoustical Design of Rooms for Speech Construction Technology Update No. 51 Acoustical Design of Rooms for Speech by J.S. Bradley This Update explains the acoustical requirements conducive to relaxed and accurate speech communication in rooms

More information

Perforated profiles Acoustic and ball-impact resistant profiles. flexible building. sustainable thinking.

Perforated profiles Acoustic and ball-impact resistant profiles. flexible building. sustainable thinking. Perforated profiles Acoustic and ball-impact resistant profiles flexible building. sustainable thinking. PRODUCTS Perforated profiles Aluform sinusoidal profile 18/76 Aluform sinusoidal profile 55/177

More information

--- 1-1. STEREO PANELS

--- 1-1. STEREO PANELS _Stereo acoustic panels and screens for architecture Texaa Stereo are rigid acoustic panels and screens designed to reduce reverberation inside a wide range of spaces. They are available in a multitude

More information

THE ACOUSTICS DESIGN OF THE EUSKALDUNA PALACE

THE ACOUSTICS DESIGN OF THE EUSKALDUNA PALACE THE ACOUSTICS DESIGN OF THE EUSKALDUNA PALACE Pacs reference SS-RBA- Higini Arau Puchades ESTUDI ACUSTIC H.ARAU C/Travesera de Dalt 8 BARCELONA (824) SPAIN e-mail: h.arau@terra.es ABSTRACT: The Euskalduna

More information

Acoustics of indoor sports halls and gymnasia

Acoustics of indoor sports halls and gymnasia Acoustics of indoor sports halls and gymnasia Robert Conetta 1, Bridget Shield 1, Trevor Cox 2, Charlie Mydlarz 2, Julie Dockrell 3, Daniel Connolly 3 1 London South Bank University 2 University of Salford

More information

Optiffuser. High-performance, high bandwidth lightweight 1D diffuser.

Optiffuser. High-performance, high bandwidth lightweight 1D diffuser. Optiffuser High-performance, high bandwidth lightweight 1D diffuser. General product information The Optiffuser comes in packs of four panels. Two positives and two negatives (see page 5) per package.

More information

Timber Acoustic Solutions. Combining carpentry expertise with acoustic knowledge to give designers maximum control over sound and aesthetics

Timber Acoustic Solutions. Combining carpentry expertise with acoustic knowledge to give designers maximum control over sound and aesthetics Timber Acoustic Solutions Combining carpentry expertise with acoustic knowledge to give designers maximum control over sound and aesthetics Acoustic control and the warmth of real wood The ultimate renewable

More information

Relationship between Sound Pressure and Sound Power Levels

Relationship between Sound Pressure and Sound Power Levels Relationship between Sound Pressure and Sound Power Levels 4 W. T. W. CORY Chairman of the Eurovent WG 1 Fans If we wish to know the sound power transmitted through a fan and ducting system, it is preferable

More information

ABSORPTION COEFFICIENTS

ABSORPTION COEFFICIENTS ABSORPTION COEFFICIENTS www.akustik.ua FREQUENCY Hz MATERIAL THICKNESS 125 250 500 1000 2000 4000 MASONRY WALLS Rough concrete 0,02 0,03 0,03 0,03 0,04 0,07 Smooth unpainted concrete 0,01 0,01 0,02 0,02

More information

VIPAC ENGINEERS & SCIENTISTS

VIPAC ENGINEERS & SCIENTISTS VIPAC ENGINEERS & SCIENTISTS Vipac Engineers & Scientists Limited A.B.N. 33 005 453 627 The Victorian Technology Centre Private Bag 16, Port Melbourne, VIC, 3207, AUSTRALIA Telephone +61 3 9647 9700, Facsimile

More information

AMF Line; wall absorbers Wall mounted acoustic designs PERFORMANCE CEILINGS. M ore s c op e f or i n n ovat i on MADE IN GERMANY

AMF Line; wall absorbers Wall mounted acoustic designs PERFORMANCE CEILINGS. M ore s c op e f or i n n ovat i on MADE IN GERMANY PERFORMANCE CEILINGS M ore s c op e f or i n n ovat i on AMF Line; wall absorbers Wall mounted acoustic designs MADE IN GERMANY 138568_Prospekt Wandabsorber_GB int.indd 1 Acoustic elements on the wall

More information

I n spite of many attempts to surpass

I n spite of many attempts to surpass WHAT IS SO SPECIAL ABOUT SHOEBOX HALLS? ENVELOPMENT, ENVELOPMENT, ENVELOPMENT Marshall Long Marshall Long Acoustics 13636 Riverside Drive Sherman Oaks, California 91423 I n spite of many attempts to surpass

More information

INC Flexi-Sorb. Versatile Flexible Easy To Install Durable Good Noise Reduction Economical. Typical Applications

INC Flexi-Sorb. Versatile Flexible Easy To Install Durable Good Noise Reduction Economical. Typical Applications INC Flexi-Sorb Noise Control Curtain System Versatile Flexible Easy To Install Durable Good Noise Reduction Economical Our Flexi-Sorb noise control curtain product line consists of flexible, durable acoustical

More information

The index method of acoustic design of sports enclosures

The index method of acoustic design of sports enclosures The index method of acoustic design of sports enclosures Elzbieta Nowicka Department of Acoustics, Building Research Institute, Warsaw, Poland. Summary The science of interior space acoustics essentially

More information

FACT SHEET. Acoustic Properties of Precast Concrete. making precast easy. Acoustic Properties of Precast Concrete

FACT SHEET. Acoustic Properties of Precast Concrete. making precast easy. Acoustic Properties of Precast Concrete Acoustic Properties of Precast Concrete Acoustic Properties of Precast Concrete In today s cities people are living closer and closer together primarily due to urban consolidation. The need to utilise

More information

Furniture acts constructively to diffuse the sound that could otherwise reflect between parallel hard surfaces.

Furniture acts constructively to diffuse the sound that could otherwise reflect between parallel hard surfaces. Baseline Designs: Acoustics Strategy Introduction The Baseline Designs are generally in line with the Building Bulletin 93 (BB93), Acoustic design of schools: performance standards, 2014. BB93, 2014 supersedes

More information

ARCHITECTURAL ACOUSTICS

ARCHITECTURAL ACOUSTICS ARCHITECTURAL ACOUSTICS BEFORE THE MUSIC BEGINS, THE PERFORMANCE STARTS WITH THE ELEMENTS OF THE ROOM KINETICS STANDS OUT ACOUSTIC PRODUCT EXPERTS SINCE 1958 DIVERSITY OF PRODUCT SOLUTIONS AND FINISHES

More information

ACOUSTIC DESIGN CHALLENGE IN TOTALLY FLEXIBLE CONFIGURATION OF THEATRE HALL CASE STUDY

ACOUSTIC DESIGN CHALLENGE IN TOTALLY FLEXIBLE CONFIGURATION OF THEATRE HALL CASE STUDY th Congress of Alps-Adria Acoustics Assosiation.-7. October Graz, Austria ISBN: 978---9- ACOUSTIC DESIGN CHALLENGE IN TOTALLY FLEXIBLE CONFIGURATION OF THEATRE HALL CASE STUDY Miomir Mijić, Dragana Šumarac

More information

FACT SHEET 14 SOUND INSULATION OF FLOORS. Key Issues and Considerations. Airborne and Impact Noise Insulation

FACT SHEET 14 SOUND INSULATION OF FLOORS. Key Issues and Considerations. Airborne and Impact Noise Insulation SOUND INSULATION OF FLOORS The sound insulation of floors refers to the ability of a floor system to reduce airborne noise entering your residence from residences above and below, and noise caused by movement

More information

Educational Facilities

Educational Facilities Acoustics and the Impact on Educational Facilities falconproducts.com Achieving High-Quality Acoustics in Schools The move to a collaborative teaching environment is bringing with it a change in classroom

More information

NEW SMALL HALLS IN FINLAND. Henrik Möller, Tapio Lahti and Anssi Ruusuvuori

NEW SMALL HALLS IN FINLAND. Henrik Möller, Tapio Lahti and Anssi Ruusuvuori NEW SMALL HALLS IN FINLAND Henrik Möller, Tapio Lahti and Anssi Ruusuvuori Akukon Oy Consulting Engineers Kornetintie 4 A, 00380 HELSINKI henrik.moller@akukon.fi ABSTRACT Two small multi-purpose halls

More information

VERTICAL DESIGN OPTImAL ACOUSTICS

VERTICAL DESIGN OPTImAL ACOUSTICS VERTICAL DESIGN OPTImAL ACOUSTICS 3 8 EnDLESS lines products possibilities Discover the family of products, vertically folding operable walls that unite design, performance, flexibility and acoustics.

More information

WAVE Design Absorber. Design Solutions

WAVE Design Absorber. Design Solutions »... A successful symbiosis of design and function. The base material used already provides good acoustic properties, which are then significantly improved by the combination Design with Solutions the

More information

W3P. touring and theatre. Compact three-way trapezoid system

W3P. touring and theatre.  Compact three-way trapezoid system features Arrayable compact trapezoid enclosure Three-way passive system Very high SPL output capability 65º coverage angle from compound mid/high horn Multi-laminate birch plywood construction Certified

More information

At the completion of this guide you should be comfortable with the following:

At the completion of this guide you should be comfortable with the following: This guide provides instructions and best practices for deployment of the Yealink W52P IP DECT phones and repeaters RT10, which is intended for qualified technicians (or administrator) who will deploy

More information

One type of thermal storage wall uses poured concrete, brick, adobe, stone, or solid (or filled) concrete blocks. Walls are usually one foot thick, bu

One type of thermal storage wall uses poured concrete, brick, adobe, stone, or solid (or filled) concrete blocks. Walls are usually one foot thick, bu Solar windows let sunlight directly into the house. The heat is usually stored in a heavy floor or in interior walls. Thermal storage walls, as solar walls are often called, are exactly what their name

More information

3.0 Exhaust Muffler Design Principles. 3.1 Basic Concepts

3.0 Exhaust Muffler Design Principles. 3.1 Basic Concepts 3.0 Exhaust Muffler Design Principles 3.1 Basic Concepts Internal combustion engines are typically equipped with an exhaust muffler to suppress the acoustic pulse generated by the combustion process. A

More information

NEW CEILING MODULE DS-W1 WAVE : SUBSTANTIALLY HIGHER CAPACITY AND ENERGY EFFICIENCY

NEW CEILING MODULE DS-W1 WAVE : SUBSTANTIALLY HIGHER CAPACITY AND ENERGY EFFICIENCY NEW CEILING MODULE DS-W1 WAVE : SUBSTANTIALLY HIGHER CAPACITY AND ENERGY EFFICIENCY With the groundbreaking new heating and cooling module DS-W1 Wave, compared to conventional radiant solutions, the heating

More information

Fundamentals of Acoustics & Practical HVAC Design Considerations. Demir Doken Acoustic Engineer

Fundamentals of Acoustics & Practical HVAC Design Considerations. Demir Doken Acoustic Engineer Fundamentals of Acoustics & Practical HVAC Design Considerations Demir Doken Acoustic Engineer What is sound? Sound is a mechanical wave that is an oscillation of pressure transmitted through some medium

More information

Table 1: DWELLING HOUSES AND FLATS SEPARATING WALLS, FLOORS and STAIRS THAT HAVE A SEPARATING FUNCTION. NEW BUILD

Table 1: DWELLING HOUSES AND FLATS SEPARATING WALLS, FLOORS and STAIRS THAT HAVE A SEPARATING FUNCTION. NEW BUILD Guidance Note Issued 01// Rev A Page 1 of 5 Approved document E came into force on the 1 st July 2003 and details new acoustic performances for residential dwellings, flats, rooms used for residential

More information

Retrofit structural insulated panels (SIPs) increase sound transmission loss of existing single family houses impacted by highway noise

Retrofit structural insulated panels (SIPs) increase sound transmission loss of existing single family houses impacted by highway noise Baltimore, Maryland NOISE-CON 2010 2010 April 19-21 Retrofit structural insulated panels (SIPs) increase sound transmission loss of existing single family houses impacted by highway noise Scott Harvey

More information

The Acoustical Properties of Wool Carpet

The Acoustical Properties of Wool Carpet The Acoustical Properties of Wool Carpet... carpet is one of the most practical and cost-effective products available for controlling noise in the built environment. Dianne Williams, Graeme E Harding and

More information

touring and theatre Arrayable three-way compact trapezoid system

touring and theatre  Arrayable three-way compact trapezoid system features Arrayable compact trapezoid enclosure Bi-amplified three-way system Very high SPL output capability 65º coverage angle from compound mid/high horn Multi-laminate birch plywood construction Certified

More information

EVERYTHING YOU WANTED TO KNOW ABOUT SOUND BUT WERE AFRAID TO HEAR.

EVERYTHING YOU WANTED TO KNOW ABOUT SOUND BUT WERE AFRAID TO HEAR. WHAT IS SOUND? EVERYTHING YOU WANTED TO KNOW ABOUT SOUND BUT WERE AFRAID TO HEAR. Sound waves travel through the air in the form of very small changes in atmospheric pressure. Sound pressure (which we

More information

Wall. Between us, ideas become reality. Acoustical Wall, Baffle, and Diffuser Systems

Wall. Between us, ideas become reality. Acoustical Wall, Baffle, and Diffuser Systems Wall Systems Between us, ideas become reality soundsoak Acoustical Wall, Baffle, and Diffuser Systems Sound Design Soundsoak Acoustical Wall, Baffle, and Diffuser Systems effectively control unwanted noise.

More information

ELECTRONIC SOUND ENHANCEMENT SYSTEM IN THE MULTIFUNCTIONAL HALL TÓNBERG IN AKRANES, ICELAND

ELECTRONIC SOUND ENHANCEMENT SYSTEM IN THE MULTIFUNCTIONAL HALL TÓNBERG IN AKRANES, ICELAND ELECTRONIC SOUND ENHANCEMENT SYSTEM IN THE MULTIFUNCTIONAL HALL TÓNBERG IN AKRANES, ICELAND Stefán Guðjohnsen Mannvit hf. Acoustical department Grensásvegi 11, 108 Reykjavík, Iceland stg@mannvit.is Gunnar

More information

The Conference is Calling. A guide to getting the most out of your conference calls

The Conference is Calling. A guide to getting the most out of your conference calls The Conference is Calling A guide to getting the most out of your conference calls The Conference is Calling Why use a conference phone? Most phones today have a speakerphone button but there are in fact

More information

Adaptive strategies for office spaces in the UK climate

Adaptive strategies for office spaces in the UK climate International Conference Passive and Low Energy Cooling 631 Adaptive strategies for office spaces in the UK climate I. Gallou Environment & Energy Studies Programme, Architectural Association Graduate

More information

Aircraft cabin noise synthesis for noise subjective analysis

Aircraft cabin noise synthesis for noise subjective analysis Aircraft cabin noise synthesis for noise subjective analysis Bruno Arantes Caldeira da Silva Instituto Tecnológico de Aeronáutica São José dos Campos - SP brunoacs@gmail.com Cristiane Aparecida Martins

More information

OWAplan1. The seamless acoustic ceiling. Pure acoustics. Pure design.

OWAplan1. The seamless acoustic ceiling. Pure acoustics. Pure design. OWAplan1 The seamless acoustic ceiling. Pure acoustics. Pure design. 3 Perspectives of freedom OWAplan It is time for a new way of thinking, for a new kind of freedom in room design, for taking a different

More information

DESIGN CRITERIA FOR ACOUSTIC ENHANCEMENT SYSTEMS Ben Kok, Wim Prinssen Systems for Improved Acoustic Performance Uden, The Netherlands

DESIGN CRITERIA FOR ACOUSTIC ENHANCEMENT SYSTEMS Ben Kok, Wim Prinssen Systems for Improved Acoustic Performance Uden, The Netherlands DESIGN CRITERIA FOR ACOUSTIC ENHANCEMENT SYSTEMS Ben Kok, Wim Prinssen Systems for Improved Acoustic Performance Uden, The Netherlands ABSTRACT Acoustic Enhancement Systems have evolved significantly -

More information

FEEDBACK FROM THE FOODCOURT

FEEDBACK FROM THE FOODCOURT FEEDBACK FROM THE FOODCOURT Evert de Ruiter Peutz consulting engineers, P.O. Box 696, 2700 AR Zoetermeer, The Netherlands e-mail: e.deruiter@peutz.nl; ephjderuiter@gmail.com Yuliya Smyrnova, Tom Brown

More information

Improving acoustics. For better learning environments

Improving acoustics. For better learning environments Improving acoustics For better learning environments The natural environment The model for learning spaces Over thousands of years, the human sense of hearing evolved for an outdoor, natural environment.

More information

Acoustics and Sound Systems in Architectural Design

Acoustics and Sound Systems in Architectural Design Acoustics and Sound Systems in Architectural Design By RICK KAMLET The need for intelligible speech or pleasant, undistorted music is fundamental to the design of auditoriums, performing arts centers,

More information

Conference Phone Buyer s Guide

Conference Phone Buyer s Guide Conference Phone Buyer s Guide Conference Phones are essential in most organizations. Almost every business, large or small, uses their conference phone regularly. Such regular use means choosing one is

More information

Experimental study on sound performance of microperforated panel with membrane-type acoustic metamaterials composite structure

Experimental study on sound performance of microperforated panel with membrane-type acoustic metamaterials composite structure PROCEEDINGS of the 22 nd International Congress on Acoustics Materials for Noise Control: Paper ICA2016-326 Experimental study on sound performance of microperforated panel with membrane-type acoustic

More information

Leeds Metropolitan University - Design and Build of new Acoustic Laboratory Suite

Leeds Metropolitan University - Design and Build of new Acoustic Laboratory Suite http://www.pdaltd.com Leeds Metropolitan University - Design and Build of new Acoustic Laboratory Suite Introduction Leeds Metropolitan University (LMU) is a well established and respected centre for education

More information

A brand driven by passion

A brand driven by passion Hello & Welcome ... to Our Universe We bring love to the business, We are proud to present you a unique brand that drives high performance acoustic products for ultimate ambiances design. A brand driven

More information

ARC 6642 ARCHITECTURAL ACOUSTICS DESIGN LAB

ARC 6642 ARCHITECTURAL ACOUSTICS DESIGN LAB ARC 6642 ARCHITECTURAL ACOUSTICS DESIGN LAB Gary W. Siebein Fall, 2011 3 credits This course will consist of lecture presentations, seminar discussions, readings, a field trip to an auditorium and support

More information

P. D Antonio. RPG Diffusor Systems, Inc. Contact: pdantonio@rpginc.com

P. D Antonio. RPG Diffusor Systems, Inc. Contact: pdantonio@rpginc.com Acoustical Design of Speech Rooms using the Complete Acoustical Palette: Absorption, Reflection, Diffusion and Isolation P. D Antonio RPG Diffusor Systems, Inc. Contact: pdantonio@rpginc.com ABSTRACT In

More information

Dynamic sound source for simulating the Lombard effect in room acoustic modeling software

Dynamic sound source for simulating the Lombard effect in room acoustic modeling software Dynamic sound source for simulating the Lombard effect in room acoustic modeling software Jens Holger Rindel a) Claus Lynge Christensen b) Odeon A/S, Scion-DTU, Diplomvej 381, DK-2800 Kgs. Lynby, Denmark

More information

Mass Loaded Vinyl A review of the performance and cost in acoustical applications

Mass Loaded Vinyl A review of the performance and cost in acoustical applications Mass Loaded Vinyl A review of the performance and cost in acoustical applications Overview Driven by building codes and occupants expectations, many rooms in commercial and residential construction require

More information

Lightweight Partition Design for Residential and Commercial Buildings

Lightweight Partition Design for Residential and Commercial Buildings Lightweight Partition Design for Residential and Commercial Buildings Stanley D. Gatland II, CertainTeed Corporation, Valley Forge, Pennsylvania Guidelines are presented for the design and proper installation

More information

THE ART & SCIENCE OF Room Acoustics

THE ART & SCIENCE OF Room Acoustics THE ART & SCIENCE OF Room Acoustics ABOUT THIS BROCHURE What you will find in these pages is a descriptive gallery of the most complete line of Room Acoustics products offered by a single source. All of

More information

Audio Analysis & Creating Reverberation Plug-ins In Digital Audio Engineering

Audio Analysis & Creating Reverberation Plug-ins In Digital Audio Engineering , pp.201-208 http:// dx.doi.org/10.14257/ijmue.2013.8.6.20 Audio Analysis & Creating Reverberation Plug-ins In Digital Audio Engineering Yoemun Yun Dept. of Applied Music, Chungwoon University Daehakgil-25,

More information

In today s architectural environment, good acoustical design isn t a luxury

In today s architectural environment, good acoustical design isn t a luxury USG Presents by: James D. Janning, AIA, CSI Architectural Systems Manager, USG Corporation In today s architectural environment, good acoustical design isn t a luxury it s a necessity. Acoustics impacts

More information