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Dissertations / Theses on the topic 'Auditorium Acoustics'
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1
Bassett, John. "Assessing the Spatial Diffusivity of Sound Fields in Rooms using Ambisonic Techniques." Thesis, The University of Sydney, 2012. http://hdl.handle.net/2123/8255.
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This thesis explores the means of objectively measuring diffuse sound fields contained within music performance auditoria. Although the diffuse field is considered to be an important component of the reverberant sound field there is currently no widely accepted method for its measurement. A review of methods shows that attempts to characterize the field may be divided into those methods that seek to directly measure the state of the field and those that indirectly indicate the existence of the state. The primary focus of this thesis is the application of Ambisonic techniques to capture the spatial aspects of the sound field. Initial work explores the rotation of a directional microphone in three measurement spaces. The results and modeling in idealised simulated sound fields indicate that the method may have some efficacy. The method is extended through the application of signal processing to the output of an Ambisonic microphone array. The method is tested firstly in a reverberation room that is modified progressively to produce a series of room states with incrementally increasing reverberation time. The extents of the measurement system were tested by measuring the degrees of diffusivity reached in a reverberation room. Diffusing panels were progressively added in the expectation the increases in diffusivity would be detected. The measurement was carried out in conjunction with standard absorption coefficient measurements outlined in Appendix A of ISO 354. Comparison was made between the measured field and the standard method for achieving a diffuse field in a reverberation room test facility. The final stage attempts to find correlation between physical measures of diffuse fields and listener’s subjective assessment of those fields. To that end a paired comparison test was conducted where listeners were presented music samples rendered through simulated halls where the scattering coefficients and consequently the sound field diffusivity was varied. Subjects were asked to choose which pair they preferred.
2
Dammerud, Jens Jørgen. "Stage acoustics for symphony orchestras in concert halls." Thesis, University of Bath, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518296.
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Legoh, Finarya. "An investigation into auditorium design using 1:50 physical scale modelling and computer modelling." Thesis, University of Salford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238916.
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4
Nguyen, Andy. "Sensing Sound And Space:Auditory And Visual Spatial ImpressionIn Three Auditoria." Thesis, The University of Sydney, 2005. http://hdl.handle.net/2123/697.
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In some contexts, the experience of sound and space are often considered as two unrelated experiences. In an auditorium, the senses of hearing and seeing are not necessary unrelated. This thesis proposes that there is a sensorial relationship between sound and space in the context of symphonic concert halls. Through a study of three auditoria, this thesis explores the relationship, and the degree of correspondence and interaction between auditory and visual spatial impression. It begins by exploring the concepts of auditory and visual spatial impression in relation with auditorium acoustics and architectural design. In auditorium acoustics, a number of terms are used to describe auditory spatial impression, such as 'spaciousness,' 'envelopment,' and 'intimacy.' These terms have connotations beyond the auditory. The thesis suggests that they may also be used to describe visual spatial impression in auditoria. Through textual analyses, the thesis finds that the auditory and visual terms do not always relate to the same physical characteristics of auditoria and can conflict with one another. Hence, it is apparent that further subjective analyses of auditory and spatial impression are needed. Three chapters in this thesis are devoted to auditory and visual subjective experiments. Their purpose is to explore the degree of correspondence or contrast, and interaction between auditory and visual spatial impression. The degree of correspondence and contrast between auditory and visual spatial impression appear to vary between auditoria and within auditoria. The relationship between auditory and visual spatial impression appear to be both necessary and arbitrary, and the degree of interaction between them appear to be strong in some cases and weak in other. From the findings, this thesis suggests that the degree of correspondence or contrast, and interaction between auditory and visual spatial impression could be used to create an audiovisual experience that suit specific musical events. Concert auditoria are culturally and artistically unique spaces. Hence, consideration must be taken to understand the relationships between, and intentions of the acoustical and architectural designs, music and architecture, for a successful and creative collaboration between designers - since the ultimate goal is to create an extraordinary audiovisual experience in a concert hall.
5
Yilmaz, Tansu. "Acoustical Analysis Of A Multipurpose Hall By Computer Simulation Method: Metu Northern Cyprus Campus Auditorium (ncca) As A Case Study." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605957/index.pdf.
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In this study, impulse response of a multipurpose hall, namely METU Northern Cyprus Campus Auditorium (NCCA) is analyzed and the acoustical quality of the auditorium is evaluated. Suggestions to increase the acoustical satisfaction has been made and to overcome the probability of bass-rise caused by the noise of HVAC systems, a proposal has been made to control low frequency sounds by introducing the volume resonators for the specified frequency. For the study, Odeon, which is used effectively in computer based acoustical simulation studies, is used for the analysis part. In the analysis, a 3D drawing of the hall has been produced by the help of the exact dimensions derived from the original submission of the project by the permission of the authorities.
6
Nguyen, Andy. "Sensing Sound And Space:Auditory And Visual Spatial ImpressionIn Three Auditoria." University of Sydney. Architecture, Design Science and Planning, 2005. http://hdl.handle.net/2123/697.
Full textAbstract:
In some contexts, the experience of sound and space are often considered as two unrelated experiences. In an auditorium, the senses of hearing and seeing are not necessary unrelated. This thesis proposes that there is a sensorial relationship between sound and space in the context of symphonic concert halls. Through a study of three auditoria, this thesis explores the relationship, and the degree of correspondence and interaction between auditory and visual spatial impression. It begins by exploring the concepts of auditory and visual spatial impression in relation with auditorium acoustics and architectural design. In auditorium acoustics, a number of terms are used to describe auditory spatial impression, such as �spaciousness,� �envelopment,� and �intimacy.� These terms have connotations beyond the auditory. The thesis suggests that they may also be used to describe visual spatial impression in auditoria. Through textual analyses, the thesis finds that the auditory and visual terms do not always relate to the same physical characteristics of auditoria and can conflict with one another. Hence, it is apparent that further subjective analyses of auditory and spatial impression are needed. Three chapters in this thesis are devoted to auditory and visual subjective experiments. Their purpose is to explore the degree of correspondence or contrast, and interaction between auditory and visual spatial impression. The degree of correspondence and contrast between auditory and visual spatial impression appear to vary between auditoria and within auditoria. The relationship between auditory and visual spatial impression appear to be both necessary and arbitrary, and the degree of interaction between them appear to be strong in some cases and weak in other. From the findings, this thesis suggests that the degree of correspondence or contrast, and interaction between auditory and visual spatial impression could be used to create an audiovisual experience that suit specific musical events. Concert auditoria are culturally and artistically unique spaces. Hence, consideration must be taken to understand the relationships between, and intentions of the acoustical and architectural designs, music and architecture, for a successful and creative collaboration between designers - since the ultimate goal is to create an extraordinary audiovisual experience in a concert hall.
7
Zhang, Yan. "A method to predict reverberation time in concert hall preliminary design stage." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-09262005-085624/.
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Thesis (Ph. D.)--Architecture, Georgia Institute of Technology, 2006.Brani Vidakovic, Committee Member ; Larry Kirkegaard, Committee Member ; Yves Berthelot, Committee Member ; Ruchi Choudhary, Committee Member ; Ning Xiang, Committee Member ; Godfried, Augenbroe, Committee Chair. Vita. Includes bibliographical references.
8
Wong, Lawdy Siu Shan. "Auditorium acoustic modelling on chaotic realisation." Thesis, Oxford Brookes University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394625.
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9
Davies, W. J. "The effects of seating on the acoustics of auditoria." Thesis, University of Salford, 1992. http://usir.salford.ac.uk/14799/.
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The two main attributes of seating in auditoria have been investigated. Tle first is random incidence absorption. The second is the low-frequency selective attenuation which seating can impart to sound travelling over it at grazing incidence: the so-called "seat dip" effect. It was found that there was a need for a more accurate laboratory measurement method to predict auditorium seat absorption. The traditional method tended to overpredict the absorption of the exposed front and sides of seating blocks. A new method was studied which involves the use of barriers to obtain realistic measurements of front and side absorption. The new method was validated by comparing measurements of seats made in a reverberation chamber with in-situ absorption data for the same seats, calculated from reverberation time measurements in ten auditoria with and without the seats present. The accuracy of the new method was found to be satisfactory in all cases, although a severe lack of diffusion in two of the halls hindered the validation process. The important physical factors affecting seat dip attenuation were investigated by measurements in a concert hall and on scale model seats. A scheme for reducing the attenuation with resonant absorbers was evaluated, and a simple theoretical model developed. 'Ibe subjective significance of the effect was established with a panel of ten subjects and a fully simulated auditorium sound field. The absolute threshold of perception of the seat dip effect was found to be 7.1 ± 0.6 dB attenuation in the 200 Hz octave band of the early field. It was found that seat dip attenuation might be made less audible in a hall by: (i) supplying early energy along paths remote from the seating, (ii) increasing the vertical angle of incidence of the direct sound and (iii) installing resonant absorbers in the floor between seat rows.
10
Nguyen, Andy. "Sensing sound and space auditory and visual spatial impression in three auditoria /." Connect to full text, 2005. http://hdl.handle.net/2123/697.
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Thesis (M. Phil. (Arch.))--University of Sydney, 2005.Title from title screen (viewed 27 May 2008). Submitted in fulfilment of the requirements for the degree of Master of Philosophy (Architecture) to the School of Architecture, Design Science and Planning, Faculty of Architecture. Includes bibliographical references. Also available in print form.
11
McMinn, Terrance. "Development Of An Evaluation Tool For Use At The Design Stage Of Auditoria With Respect To Unassisted Speech Reinforcement." Thesis, Curtin University, 1996. http://hdl.handle.net/20.500.11937/1639.
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This dissertation describes the development of an evaluation tool that can be used by an acoustican during the design stage of enclosures used for unassisted speech. Enclosures include lecture theatres, lecture halls and speech auditoriums. The tool is designed to enable Acousticians to be able to manipulate various acoustical parameters such as the geometry and the materials or construction selection to gauge the impact on speech performance. The tool can also be used to evaluate the performance of speech privacy within spaces using the Speech Transmission Index. Computer simulation tools have a number of advantages over existing methods such as physical scale models for this type of evaluation. Typical advantages are in the elimination of the difficult selection of materials with appropriate scale model acoustic performance, resolution of air absorption at scale model frequencies, reduced cost in development of the model, no storage space problems, ease of modifying and duplicating the model. Scale models also present difficulties in measuring some of the indices such as Speech Transmission Index. Whilst equipment can be purchased for the measurement of STI, scale model equivalents and the impact of the change in frequencies and modulations have not been researched or published.Currently, there are only two methods of evaluating the Speech Transmission of an enclosure: Build a full size enclosure and test; or simulate mathematically to derive the performance. At the time this thesis was commenced there were no commercial simulation programs available that could derive Speech Transmission Index information. The evaluation tool has been implemented as a computer program, based on IBM PC type computers running Microsoft WINDOWS 3.1 or later. The implementation uses the image method for the 'ray trace' algorithm. This basic image method utilises the enhancements made by a number of authors. In particular the Transformation Matrix method and homogenous coordinates have been used to improve the speed of the algorithm. Pre-computation of mutually invisible planes allows trimming the number of possible combination of rays that need to be computed. Results of physical measurement from two case studies have been compared to results of the simulation. Good correlation between the simulations and the case studies were achieved for the Speech Transmission Index and RASTI values. The accuracy of the simulation,in terms of decay based indices, is limited by the lack of sufficient tail to the calculated number of rays. Further research and implementation of hybrid techniques utilising both the image method and more traditional ray-tracing algorithms to improve the quality of the calculated decay data are required. Investigation of techniques used in photo-realism 'ray-tracing' may result in far more realistic data which is the basic input to the Speech Transmission Index calculations.
12
McMinn, Terrance. "Development Of An Evaluation Tool For Use At The Design Stage Of Auditoria With Respect To Unassisted Speech Reinforcement." Curtin University of Technology, School of Architecture, Construction and Planning, 1996. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=12331.
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This dissertation describes the development of an evaluation tool that can be used by an acoustican during the design stage of enclosures used for unassisted speech. Enclosures include lecture theatres, lecture halls and speech auditoriums. The tool is designed to enable Acousticians to be able to manipulate various acoustical parameters such as the geometry and the materials or construction selection to gauge the impact on speech performance. The tool can also be used to evaluate the performance of speech privacy within spaces using the Speech Transmission Index. Computer simulation tools have a number of advantages over existing methods such as physical scale models for this type of evaluation. Typical advantages are in the elimination of the difficult selection of materials with appropriate scale model acoustic performance, resolution of air absorption at scale model frequencies, reduced cost in development of the model, no storage space problems, ease of modifying and duplicating the model. Scale models also present difficulties in measuring some of the indices such as Speech Transmission Index. Whilst equipment can be purchased for the measurement of STI, scale model equivalents and the impact of the change in frequencies and modulations have not been researched or published.Currently, there are only two methods of evaluating the Speech Transmission of an enclosure: Build a full size enclosure and test; or simulate mathematically to derive the performance. At the time this thesis was commenced there were no commercial simulation programs available that could derive Speech Transmission Index information. The evaluation tool has been implemented as a computer program, based on IBM PC type computers running Microsoft WINDOWS 3.1 or later. The implementation uses the image method for the 'ray trace' algorithm. This basic image method utilises the enhancements made by a number of authors. In particular the Transformation Matrix method and homogenous coordinates have been used to improve the speed of the algorithm. Pre-computation of mutually invisible planes allows trimming the number of possible combination of rays that need to be computed. Results of physical measurement from two case studies have been compared to results of the simulation. Good correlation between the simulations and the case studies were achieved for the Speech Transmission Index and RASTI values. The accuracy of the simulation,in terms of decay based indices, is limited by the lack of sufficient tail to the calculated number of rays. Further research and implementation of hybrid techniques utilising both the image method and more traditional ray-tracing algorithms to improve the quality of the calculated decay data are required. Investigation of techniques used in photo-realism 'ray-tracing' may result in far more realistic data which is the basic input to the Speech Transmission Index calculations.
13
Drumm, Ian. "The development and application of an adaptive beam tracing algorithm to predict the acoustics of auditoria." Thesis, University of Salford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244883.
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14
Smith, Heather. "Geometric Acoustic Modeling of the LDS Conference Center." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd591.pdf.
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15
Zatloukalová, Veronika. ""Hudební scéna" - koncertní sál pro město Brno." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-394032.
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The subject of this thesis is the design concept of the architectural study of a concert hall, namely the proposal for a "MUSIC SCENE" - the concert hall for the city of Brno. As part of this study is therefore designed a hall for 591 visitors. Hall enables performances to 90-member orchestra or choir. The solution is also operating and maintenance facilities necessary facilities like auditorium. The main emphasis was put on the acoustic solution, then the overall transparency in the operation of the building and the continuity of the building and the surrounding development mainly to the existing communication system that tries to respect.
16
Andersson, Joakim. "Opera i Stockholm, Galärvarvet." Thesis, KTH, Arkitektur, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-35072.
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Sikorav, Jacques. "Sur l'identification et la modélisation de phénomènes non-stationnaires en acoustique : Equation des ondes dans les ouverts non-cylindriques." Paris 9, 1988. http://www.theses.fr/1988PA090029.
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18
Panton, LF. "Investigating auditorium acoustics from the perspective of musicians." Thesis, 2017. https://eprints.utas.edu.au/23895/1/Panton_whole_thesis_ex_pub_mat.pdf.
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This thesis investigates auditorium stage acoustics from the perspective of the performing musician, focusing primarily on chamber orchestras playing in a traditional concert setting. Stage acoustics has not been extensively studied in the past, and most studies have focused on full orchestras or small ensembles; however stage acoustics may be of particular importance to the musicians in a chamber orchestra as this is the largest group to perform routinely without a conductor. The aims of the study are to determine which subjective acoustic attributes are important to the chamber musicians and how auditoria could be assessed against these attributes. A broader goal is to inform auditorium and stage design for musicians. The study includes surveying of touring musicians, physical acoustic measurements on stage in auditoria, and modelling of sound propagation through a chamber orchestra with boundary element method (BEM) software.
Professional musicians were surveyed during concert tours to control for factors such as repertoire, instrument and position on stage and to minimise the limitations of short acoustical memory. The study encompassed 15 stages, including many of Australia's most important concert halls. High response rates resulted in statistically significant outcomes. Results indicate that the subjective attributes most correlated with overall acoustic impression are ensemble, support, timbre and reverberance. Reverberance was more clearly noted as important when auditoria with inadequate reverberance were included in the surveying set, however adequate reverberance alone was not sufficient for well-liked acoustics.
Physical acoustic measurements are often unavoidably made on empty stages, a significant simplification since the orchestra will impact the sound field. To investigate this a BEM model of a chamber orchestra was developed and compared to measurements of a chamber orchestra in situ in a concert hall. The study particularly focused on the degree to which the direct sound and first-order reflections were attenuated and altered by the presence of the orchestra. For the 250 Hz octave band and higher, the empty and occupied stage results differed, particularly for the lateral reflections on stage, whereas the ceiling reflections produced comb filtering but were relatively unaffected by the orchestra. A tilted side wall case showed the orchestra has a reduced effect with a small elevation of the lateral reflections.
Musicians' overall acoustic impressions were compared to in situ physical acoustic measurements on the same stages using a 32-channel spherical microphone array, which allowed the directionality of the sound fields to be investigated. It was found that omnidirectional acousticparameters (such as the well-known support measures) have some subjective relevance, which was more clearly observed when auditoria with optimum and non-optimum values were included in the dataset. In purpose-built auditoria with optimum reverberation and support parameters, it was found that the directionality of on-stage sound fields was subjectively important to musicians. A spatial parameter measuring very early sound energy from above relative to the sides and back was explored, and found to correlate at a significant level with musicians subjective ratings, with a preference for more horizontal energy from the sides and back on stage.
Overall, this study finds while stage parameters measured with an omnidirectional source and receiver (such as reverberation time and support measures) are useful in identifying musicians subjective preferences another important aspect is the directional distribution of early reflections on stage. The study examines acoustic conditions for musicians with in situ stage measurements and with BEM modelling, and identifies important aspects of stage and auditorium design for chamber orchestra musicians.
19
Jen-Chuang, Chang, and 莊仁彰. "Acoustical Evaluation of Exisuing Auditoria in Taiwan." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/34951967667267617279.
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碩士國立臺灣科技大學
工程技術研究所
86
Reuse and renewal of existing public gradually become necessary because of economical and preservation. The research is conducted to evaluate acoustical environments for existing auditoria in this research. The research contents include reviewing evaluation criteria, acquiring architectural data via field investigation or documentation review, and fielding out the acoustical characteristics of the existing auditoria in Taiwan. Field trips will be taken together and data can be shared among the integrated research team .The acoustical environments include the room acoustical qualities, the background noise levels, and the performances of the speaker system. The evaluation of acoustic properties includes indoor acoustic properties, of indoor background and the system of electronic acoustics, which, respectively, base their assessment according to the arrand the index of questionnaires. The evaluation index of acoustic properties lies in physical index (ie: EDT、 G、C、BR(RT)); the noiseof indoor background lies in questionnaires to access the integrity of the quality of equipment, which bases its evaluation of electronic. This research accumulates documentation and acoustical data for local architectures.The results can be used in architecture practice in renewing existing auditoria as well as in new auditoria design regarding aging consideration.
20
Lu, Kuan-yin, and 呂冠穎. "Study on Acoustic Performances of Auditoriums of Elementary Schools in Tainan City." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/49235573638646396608.
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碩士國立成功大學
建築學系碩博士班
95
School auditoriums are the largest room space at schools. They should have multipurpose for performances activities, large room activities for school children, and indoor physical activities to foster the cultural and art qualities of children and improve the physical skills. Acoustic environment should take multi purposes into consideration offer children more comfortable learning and growth environment. Aiming at 22 elementary school auditoriums in Tainan City with the needs of speeches, gatherings and simple performances, the researcher discusses current acoustic performances with questionnaires on teachers and senior class children at auditoriums with poor acoustic quality. With objective measurement and objective questionnaires results, the researcher reviews the current condition. The purpose is to analyze the current acoustic environment quality of elementary school auditoriums as well as understanding current use and factors affecting acoustic environment. In current usage, in addition to common gatherings and PE classes, activities in auditoriums include large publicity activities, celebrations, games, orchestra drill, skating, Chinese martial art and dances, etc. School auditoriums are becoming more vivid from solemnity image in the past. They provide a space and bring campus activities more possibilities. Under opened doors and windows, 84.2% of auditoriums’ background noise exceeds the maximum 45dB (A) with only 3 below the maximum. When windows are closed, 36.4% of the auditoriums’ background noise exceeds 45dB (A). The reverberation time of 86.4% of auditoriums exceeds 1.5 seconds. Only 3, or 13.6%, have the time between 0.8 and 1.5 seconds, the suggested value. With measurement of 12-face speakers as sound source, among the 22 halls, 36.4% have poor RASTI (0.30~0.45) and 63.6% have fair RASTI (0.45~0.60). Impact sound of 84.6% of halls is at L-55, the first level while the rest three have L-60, the second level. The questionnaires show that teachers and students do not have strong feelings on acoustic environment of auditoriums and select ordinary in noise, clarity and satisfaction. They feel that the auditoriums are noisier in classes and activities. They believe the clarity is higher in classes because of shorten distance with less influence by reverberation time. The findings show that teachers and students may not be awre of long-term exposure under high background noise.
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wu-yu-chang and 吳宜昌. "Computer Simulation and Field Testing on the Acoustic Environment of the Remodeled Chungcheng Auditorium." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/30561703118287071561.
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碩士國立臺灣科技大學
機械工程系
88
As a national second grade relic in Taipei city, the Chungshan Hall is currently in the process of renovation due to its outdated equipments and the need of reutilization for multiple purposes. The goal of this renovation is to increase its functions so that versatile cultural activities such as music, opera, conference, and lecture programs can be accommodated. In this study computer simulation, including the calculation of objective indices and auralization (synthesis of real sound), was used to aid the design of Chungcheng Auditorium. Field testing was performed after most of the interior section of the Auditorium was finished. Through the calculation of objective indices by computer, we were able to discover deficiencies in early design stage, and then implement repeated modifications to ensure that the preset goal be achieved. The auralization, on the other hand, can help music critics and orchestral conductors offer useful subjective evaluation. A successful integration of both subjective and objective evaluations can thus offer a better design to satisfy the perspective audience. The testing result of the Chungcheng Auditorium showed that the reverberation time at 500 and 1000 Hz were above 1.4 seconds. The maximum difference of sound pressure level was below 10 dB. For the clarity (C80), all but a few central front seats on the balcony fell in the range of 4 dB and —4 dB. The measured objective criteria thus revealed that the majority of the acoustical environment of the Auditorium has reached its goal. For the small portions where acoustical qualities were not satisfied, recommendations were also given for their improvements.
22
CHIANG, CHE-JU, and 江哲儒. "A Case Study on Acoustical Scaled Model Fabrication Integrated with 3D-Free Form Surface in Auditorium." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/81640885814578418596.
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碩士國立臺灣科技大學
建築系
98
The acoustical scaled model measurement is the tool which can most accurately appraise the acoustical environment of the auditorium. In the literature there are few past researches that were directed towards the acoustical scaled model fabrication process. It needs a lot of money and time to manufacture the acoustical scaled model. How to reduce the time and money is the key point for the advance of the acoustical scaled model measurement. This research take “The Big Theater Of Taichung Metropolis Opera House” as research object. And to treat that if anyone wants to make the acoustical scaled model. Which matters do they need to pay attention, and let the people who want to make the acoustical scaled model to refer that. This research proposed the acoustical scaled model should be located the position with convenience transportation, broad space and no disturbed. In this project, save the money and time by design/build (D/B) construction and overlapping construction . In order to reduce the mistake which is produced in the construction process. Proposed that use the management of proprietor and the management of (D/B) contractors to union for mix management. Regarding the acoustical scaled model fabrication proposed the method that use the slab cutting to make the model with 3D free form surface transform into the 2D working-drawing, and explain what are the important things about the slab fabrication,steel supporting system and the fittings in the acoustical scaled model construction? Finally, this research also account of the problem in this construction and how to solve it.