This document discusses acoustic treatment in recording studios. It explains that recording studios are designed based on room acoustics principles to create spaces with desired acoustic properties. This involves both room treatment using sound absorbing and diffusing materials on surfaces, as well as soundproofing between rooms. Common acoustic materials used include glass wool, foam panels, fabric coverings, bass traps, and fiberglass. Proper acoustic treatment and layout is important for ventilation, storage, door/window placement, lighting, and electrical needs.
This document discusses noise control techniques for landscape design. It begins with basic definitions of sound, noise, frequency, and decibels. It then discusses approaches to sound control, including acoustical planning during the design stage to minimize noise and retrofitting existing developments. Key aspects of acoustical planning include setbacks, buffer zones, and noise barrier mounds. Retrofitting is more difficult and costly but can incorporate barriers, fences, and soundproofing. The document also covers noise measurement tools, calculations, outdoor noise control methods like barriers and screening, and factors that influence barrier effectiveness.
The document provides details about the acoustic design of an auditorium for the Sidang Injil Borneo Kuala Lumpur church. It discusses the building and auditorium layout, sound absorption and finishing materials used, the sound system and sources, and how sound propagates through the space. Absorptive materials like carpet, fabric, and timber are used on floors, walls and ceilings to reduce reverberation. The sound system includes various speaker types to distribute sound evenly. Potential noise intrusion areas are also identified.
This document discusses key concepts in auditorium acoustics, including how sound propagates both in open and enclosed spaces. It explains the effects of different types of reflections - from flat, concave, and convex surfaces - on sound propagation. Key acoustic factors that determine the listener's experience are identified as direct sound, early reflections, and reverberant sound. The precedence effect and how it relates to localization is also summarized. The document provides an overview of how reverberation time is determined and measured, and the role of absorption properties in influencing reverberation time. It concludes with criteria for achieving good acoustics in an auditorium setting.
The document discusses acoustics in buildings and outlines conditions for good acoustics such as producing sound that can be heard evenly throughout a space without distortions. It also covers types of noise from indoor and outdoor sources and how noise can be classified based on transmission path. The document proposes measures for noise control including suppressing noise at its source, layout planning, insulation design, and absorption design.
The document provides details about an acoustical analysis project conducted on an auditorium space called the MAPKL Black Box. It includes sections on methodology, acoustical phenomena, analysis of the auditorium design, materials used, acoustic treatments, and recommendations. The project involved measuring sound levels on site, studying how sound propagates in the space, and analyzing how the design and materials affect acoustics. It aims to provide insights into acoustic modeling, design, and implementation for auditorium spaces.
A broadcasting studio is where broadcasts originate from. It contains different types of studios like music, variety show, drama and talks studios which are planned carefully with noise insulation. ESPM institute in Brazil has inaugurated a new cutting edge broadcasting studio. Different building materials are used for walls, ceilings, partitions and bass traps in recording and broadcasting studios. Proper studio size and reverberation times are required depending on the number of performers. Examples of some broadcasting studios are ACN, Riggro Digital, Prasar Bharati and All India Radio.
The document discusses various acoustical materials used to absorb and diffuse sound in buildings. It describes common materials like acoustical panels, ceiling tiles, baffles, banners, diffusers, noise barriers, and acoustical fabrics. These materials are used to improve speech intelligibility, reduce echoes and reverberation, lower sound pressure levels, and improve overall acoustics in spaces. The document provides details on the purpose, application, and benefits of different acoustical products.
This document provides details of a case study on the acoustic design of the Cempaka Sari Auditorium in Putrajaya, Malaysia. It includes an introduction outlining the objectives of studying the auditorium's acoustics. The document then covers acoustic theory relevant to auditorium design. The methodology section describes the equipment and methods used to collect acoustic data from the site, including sound level meters, measuring devices, and sound equipment in the auditorium. Finally, the document presents preliminary acoustic analysis of the auditorium and outlines recommendations and conclusions.
This document discusses noise control techniques for landscape design. It begins with basic definitions of sound, noise, frequency, and decibels. It then discusses approaches to sound control, including acoustical planning during the design stage to minimize noise and retrofitting existing developments. Key aspects of acoustical planning include setbacks, buffer zones, and noise barrier mounds. Retrofitting is more difficult and costly but can incorporate barriers, fences, and soundproofing. The document also covers noise measurement tools, calculations, outdoor noise control methods like barriers and screening, and factors that influence barrier effectiveness.
The document provides details about the acoustic design of an auditorium for the Sidang Injil Borneo Kuala Lumpur church. It discusses the building and auditorium layout, sound absorption and finishing materials used, the sound system and sources, and how sound propagates through the space. Absorptive materials like carpet, fabric, and timber are used on floors, walls and ceilings to reduce reverberation. The sound system includes various speaker types to distribute sound evenly. Potential noise intrusion areas are also identified.
This document discusses key concepts in auditorium acoustics, including how sound propagates both in open and enclosed spaces. It explains the effects of different types of reflections - from flat, concave, and convex surfaces - on sound propagation. Key acoustic factors that determine the listener's experience are identified as direct sound, early reflections, and reverberant sound. The precedence effect and how it relates to localization is also summarized. The document provides an overview of how reverberation time is determined and measured, and the role of absorption properties in influencing reverberation time. It concludes with criteria for achieving good acoustics in an auditorium setting.
The document discusses acoustics in buildings and outlines conditions for good acoustics such as producing sound that can be heard evenly throughout a space without distortions. It also covers types of noise from indoor and outdoor sources and how noise can be classified based on transmission path. The document proposes measures for noise control including suppressing noise at its source, layout planning, insulation design, and absorption design.
The document provides details about an acoustical analysis project conducted on an auditorium space called the MAPKL Black Box. It includes sections on methodology, acoustical phenomena, analysis of the auditorium design, materials used, acoustic treatments, and recommendations. The project involved measuring sound levels on site, studying how sound propagates in the space, and analyzing how the design and materials affect acoustics. It aims to provide insights into acoustic modeling, design, and implementation for auditorium spaces.
A broadcasting studio is where broadcasts originate from. It contains different types of studios like music, variety show, drama and talks studios which are planned carefully with noise insulation. ESPM institute in Brazil has inaugurated a new cutting edge broadcasting studio. Different building materials are used for walls, ceilings, partitions and bass traps in recording and broadcasting studios. Proper studio size and reverberation times are required depending on the number of performers. Examples of some broadcasting studios are ACN, Riggro Digital, Prasar Bharati and All India Radio.
The document discusses various acoustical materials used to absorb and diffuse sound in buildings. It describes common materials like acoustical panels, ceiling tiles, baffles, banners, diffusers, noise barriers, and acoustical fabrics. These materials are used to improve speech intelligibility, reduce echoes and reverberation, lower sound pressure levels, and improve overall acoustics in spaces. The document provides details on the purpose, application, and benefits of different acoustical products.
This document provides details of a case study on the acoustic design of the Cempaka Sari Auditorium in Putrajaya, Malaysia. It includes an introduction outlining the objectives of studying the auditorium's acoustics. The document then covers acoustic theory relevant to auditorium design. The methodology section describes the equipment and methods used to collect acoustic data from the site, including sound level meters, measuring devices, and sound equipment in the auditorium. Finally, the document presents preliminary acoustic analysis of the auditorium and outlines recommendations and conclusions.
The document provides details on a case study of the acoustic design of the Damansara Performing Arts Centre auditorium in Malaysia. It includes the auditorium layout plans, an introduction to acoustic phenomena like absorption, reflection and reverberation. It also discusses key considerations for acoustic design in auditoriums such as volume, seating arrangement and use of sound absorbers. Methodology details the equipment used like a sound level meter to collect acoustic data and analyze design aspects like shape and seating layout that impact the auditorium's acoustics.
This document discusses noise control in buildings. It introduces noise and noise control, then covers topics like sound and noise, room acoustics, floor construction, space planning, and noise control for main building equipment. The goal of noise control is to reduce unwanted sound pollution through strategies like addressing noise at its source, using appropriate floor assemblies, and planning spaces to separate noisy and quiet areas. Proper equipment selection and placement can also help control noise from mechanical systems.
“a science that deals with the production, control, transmission, reception, and effects of sound.”
it is the science of controlling sound within buildings.
This document provides an introduction and background on a group project to conduct an acoustic analysis of the PJ Live Arts Centre auditorium in Malaysia. The objectives are to study the auditorium design and how acoustic elements affect quality. The methodology discusses using a sound level meter, camera, and tape measure to collect data on site. An analysis is then presented on the theatre design, including the shape, seating layout, and ceiling reflector panels. Sources of indoor and outdoor noise are also identified, such as from doors, air conditioning, and the waiting area. The document aims to demonstrate understanding of the auditorium's acoustics through analysis and reporting.
The document provides an acoustic analysis of the Damansara Utama Methodist Church auditorium in Petaling Jaya, Malaysia. It describes the auditorium's design including its fan-shaped seating arrangement, concave ceiling, and three tiered seating levels. It analyzes how these design elements help distribute sound evenly to audiences. The document also examines the acoustic materials used, including carpeted floors, acoustic foam panels, and sound-absorbing curtains. Measurements of sound intensity at various distances from the sound source are included.
Acousticsandsoundinsulationsby K R ThankiKrunal Thanki
This document provides information about building acoustics and sound absorption materials. It discusses characteristics of sound including pitch, intensity, wavelength, speed of sound in different mediums, reflection, refraction, interference, reverberation, and more. It then describes different types of sound absorption materials like foam panels, fabric wrapped panels, ceiling tiles, baffles, and gives specifications for each. The goal is to educate on acoustics and available soundproofing options.
The document discusses the acoustics design considerations for recording studios. It explains that recording studios aim to have very short reverberation times, unlike auditoriums which enhance reverberation. This requires the enclosure to be very absorbent of sound and isolated from external noise. Common techniques used include double wall construction, soundproofing, bass traps, diffusers, absorbers and decoupling floors. The document provides examples of materials used like fiberglass, sheetrock and rubber for insulation and isolation.
Room acoustics and sound absorption materialsPankaj Kumar
1) The document discusses different methods for calculating reverberation time in rooms and auditoriums, including based on room dimensions, materials, and total sound absorption.
2) It provides formulas for calculating reverberation time based on room volume, total absorption, and other factors. The optimal reverberation time for an auditorium with 5000 cubic meters volume is given as 0.8 seconds.
3) Different types of sound absorbing materials are described, including porous materials like fiberboards and mineral wools, non-perforated panel absorbers, and cavity/Helmholtz resonators. Examples and properties of each type are outlined.
Sound Proofing; The Coordination of Floor, Wall and Ceiling Solutionsfranz_k
This document discusses soundproofing building elements like floors, walls, and ceilings. It explains that sound is transmitted through structures via airborne, impact, and flanking transmission. To reduce transmission, elements must be decoupled, absorb sound waves through mass or damping materials, and prevent flanking transmission. Specific solutions discussed include floating floors with insulation, carpet with padding to absorb impacts, and staggered wall studs with sound clips to reduce structure-borne vibrations. The coordination of these elements is key to effective soundproofing.
a case study of acoustic design presentationYen Min Khor
The document analyzes the acoustic design of the Connexion@Nexus auditorium. It finds that while the auditorium avoids echoes allowing speech to be easily discerned, it has a reverberation time that is too short at 0.26 seconds. The overly absorbent materials used throughout also reduce reflected sound, contributing to the suboptimal reverberation time. Additionally, the auditorium exhibits other acoustic defects like flutter echoes on stage and inefficient ceiling reflectors. Based on this analysis, the objective of determining if Connexion@Nexus is a good design for its intended multi-purpose use is answered with a no.
Review journal Acoustic –essential requirement for public building”Sayed Umam
This document discusses the importance of acoustics in public buildings. It begins by introducing acoustics as the science dealing with sound and how buildings are designed and constructed for proper acoustical conditions. Good acoustics in buildings promotes comfort, efficiency, and proper functioning of spaces like theaters, auditoriums, and hospitals. Requirements for good acoustics include adequate sound levels distributed evenly without dead spots or focusing, intelligible speech, and minimal external noise or reverberation. Design aspects like site selection, size, shape, absorbent materials, and reverberation times must meet guidelines. The conclusion emphasizes the importance of architects considering acoustical guidelines and treatments to control noise and insulate spaces for effective results.
The document discusses the acoustic design analysis of the Auditorium Cempaka Sari in Putrajaya, Malaysia. It includes an introduction describing the purpose of acoustic design in controlling sound behavior within an enclosed space like an auditorium. It then provides details on the auditorium's historical background, site information, drawings, methodology used in the acoustic analysis including measuring instruments, data collection methods, and sound equipment specifications. The document also discusses key acoustic phenomena like reverberation, attenuation, echoes and sound shadows. It analyzes the auditorium's design, materials, acoustic treatments and components, sound sources and noise sources. Measurement data on sound levels at different positions is also presented.
Sound acoustics is important for musical instruments, concert halls, surround sound, and hearing aids. Key terms in acoustics include the decibel which quantifies sound levels relative to 0 db, sound travels as vibration waves measured in hertz or cycles per second, the noise reduction coefficient rates acoustic properties of ceiling tiles and panels, and the absorption coefficient describes a material's ability to scatter sound expressed as a fraction of incident sound.
The document discusses the physics of sound. It defines sound as a pressure wave that travels faster through solids than liquids or gases. Sound waves are longitudinal waves that create compressions and rarefactions. The key characteristics of a sound wave are its frequency, amplitude, wavelength, and speed. Frequency is measured in Hertz and determines the pitch of a sound. Amplitude determines loudness. Wavelength is the distance between compressions or rarefactions. Sound waves can be reflected, transmitted, absorbed, or cause diffraction or reverberation when interacting with surfaces. The range of normal human hearing is between 20-20,000 Hz. Different materials are used to absorb sound like porous absorbers, panel absorbers, and resonators
This document discusses various acoustical defects that can occur in buildings, including reverberation, echoes, sound foci, dead spots, insufficient loudness, and exterior noises. It provides explanations of each defect and potential remedies. Reverberation time should be between 0.5 to 5 seconds depending on the quality of sound desired. The shape of the room and use of sound absorbing materials can help control reverberation time. Echoes can be reduced by using splayed walls and absorptive ceiling materials. Sound foci and dead spots arise from the geometric shape focusing or reducing sound in areas and can be addressed through diffusers, reflectors, and absorbent materials. External noise insulation and location away from noise sources also
Noise Control Stratagies in Reinforced Concrete BuildingsIJRES Journal
This study is aimed at bringing out the salient aspects of building noise control. An analysis has been carried out with respect to the noise transmission as well as the characteristics of noise inside buildings. The key issues on building noise control have been included and discussed. A comprehensive study on building noise and on acoustically divisible spaces has been made. It has been observed that a sound insulation of the order of 30 to 35 dB is possible in a given building. Further, the noise propagation parameters in an exhibition hall have been theoretically estimated. The data so obtained has been compared with actual SPL measurements and recorded. Variations in noise levels observed have been explained. Before the partition is made, the SPL drop is faster inside the building but after the partition the drop falls at the rate of 3dB for doubling the distance. The cost of the acoustically divisible partition wall is found to be very high, but the advantage of this partition seems to be creating acoustically divisible spaces where in one can conduct two programs simultaneously, without any disturbance to each other. Prior to the selection and design of control measures, noise sources must be identified and the noise produced must be carefully evaluated.
The document provides background information on a case study of the Wisma MBSA Auditorium Hall in Shah Alam, Malaysia. The objectives of the case study are to understand how auditorium design can influence sound quality, materials used to enhance acoustics, and to produce an analysis report. The auditorium was built in the 1980s and has a capacity of 1400 people. Floor plans, sections and photos of the auditorium are presented. Acoustic concepts like reverberation, sound absorption, and sound propagation are discussed. Methodology details measuring sound levels and documenting the auditorium. The analysis examines the auditorium's sound reinforcement system, speakers and advantages/disadvantages of the system. Sound propagation readings in the
This document provides details of a case study on the acoustic design of the Cempaka Sari Auditorium in Putrajaya, Malaysia. It includes an introduction outlining the aims, objectives, and background of the auditorium. The methodology section describes the equipment used to collect acoustic data during site visits, including sound level meters, measuring devices, and cameras. Acoustic theory is discussed around topics like sound intensity, reverberation, attenuation, and design considerations for auditoriums. Drawings of the auditorium plans and sections are also provided.
The document provides details on a case study of the acoustic design of the Damansara Performing Arts Centre auditorium in Malaysia. It includes the auditorium layout plans, an introduction to acoustic phenomena like absorption, reflection and reverberation. It also discusses key considerations for acoustic design in auditoriums such as volume, seating arrangement and use of sound absorbers. Methodology details the equipment used like a sound level meter to collect acoustic data and analyze design aspects like shape and seating layout that impact the auditorium's acoustics.
This document discusses noise control in buildings. It introduces noise and noise control, then covers topics like sound and noise, room acoustics, floor construction, space planning, and noise control for main building equipment. The goal of noise control is to reduce unwanted sound pollution through strategies like addressing noise at its source, using appropriate floor assemblies, and planning spaces to separate noisy and quiet areas. Proper equipment selection and placement can also help control noise from mechanical systems.
“a science that deals with the production, control, transmission, reception, and effects of sound.”
it is the science of controlling sound within buildings.
This document provides an introduction and background on a group project to conduct an acoustic analysis of the PJ Live Arts Centre auditorium in Malaysia. The objectives are to study the auditorium design and how acoustic elements affect quality. The methodology discusses using a sound level meter, camera, and tape measure to collect data on site. An analysis is then presented on the theatre design, including the shape, seating layout, and ceiling reflector panels. Sources of indoor and outdoor noise are also identified, such as from doors, air conditioning, and the waiting area. The document aims to demonstrate understanding of the auditorium's acoustics through analysis and reporting.
The document provides an acoustic analysis of the Damansara Utama Methodist Church auditorium in Petaling Jaya, Malaysia. It describes the auditorium's design including its fan-shaped seating arrangement, concave ceiling, and three tiered seating levels. It analyzes how these design elements help distribute sound evenly to audiences. The document also examines the acoustic materials used, including carpeted floors, acoustic foam panels, and sound-absorbing curtains. Measurements of sound intensity at various distances from the sound source are included.
Acousticsandsoundinsulationsby K R ThankiKrunal Thanki
This document provides information about building acoustics and sound absorption materials. It discusses characteristics of sound including pitch, intensity, wavelength, speed of sound in different mediums, reflection, refraction, interference, reverberation, and more. It then describes different types of sound absorption materials like foam panels, fabric wrapped panels, ceiling tiles, baffles, and gives specifications for each. The goal is to educate on acoustics and available soundproofing options.
The document discusses the acoustics design considerations for recording studios. It explains that recording studios aim to have very short reverberation times, unlike auditoriums which enhance reverberation. This requires the enclosure to be very absorbent of sound and isolated from external noise. Common techniques used include double wall construction, soundproofing, bass traps, diffusers, absorbers and decoupling floors. The document provides examples of materials used like fiberglass, sheetrock and rubber for insulation and isolation.
Room acoustics and sound absorption materialsPankaj Kumar
1) The document discusses different methods for calculating reverberation time in rooms and auditoriums, including based on room dimensions, materials, and total sound absorption.
2) It provides formulas for calculating reverberation time based on room volume, total absorption, and other factors. The optimal reverberation time for an auditorium with 5000 cubic meters volume is given as 0.8 seconds.
3) Different types of sound absorbing materials are described, including porous materials like fiberboards and mineral wools, non-perforated panel absorbers, and cavity/Helmholtz resonators. Examples and properties of each type are outlined.
Sound Proofing; The Coordination of Floor, Wall and Ceiling Solutionsfranz_k
This document discusses soundproofing building elements like floors, walls, and ceilings. It explains that sound is transmitted through structures via airborne, impact, and flanking transmission. To reduce transmission, elements must be decoupled, absorb sound waves through mass or damping materials, and prevent flanking transmission. Specific solutions discussed include floating floors with insulation, carpet with padding to absorb impacts, and staggered wall studs with sound clips to reduce structure-borne vibrations. The coordination of these elements is key to effective soundproofing.
a case study of acoustic design presentationYen Min Khor
The document analyzes the acoustic design of the Connexion@Nexus auditorium. It finds that while the auditorium avoids echoes allowing speech to be easily discerned, it has a reverberation time that is too short at 0.26 seconds. The overly absorbent materials used throughout also reduce reflected sound, contributing to the suboptimal reverberation time. Additionally, the auditorium exhibits other acoustic defects like flutter echoes on stage and inefficient ceiling reflectors. Based on this analysis, the objective of determining if Connexion@Nexus is a good design for its intended multi-purpose use is answered with a no.
Review journal Acoustic –essential requirement for public building”Sayed Umam
This document discusses the importance of acoustics in public buildings. It begins by introducing acoustics as the science dealing with sound and how buildings are designed and constructed for proper acoustical conditions. Good acoustics in buildings promotes comfort, efficiency, and proper functioning of spaces like theaters, auditoriums, and hospitals. Requirements for good acoustics include adequate sound levels distributed evenly without dead spots or focusing, intelligible speech, and minimal external noise or reverberation. Design aspects like site selection, size, shape, absorbent materials, and reverberation times must meet guidelines. The conclusion emphasizes the importance of architects considering acoustical guidelines and treatments to control noise and insulate spaces for effective results.
The document discusses the acoustic design analysis of the Auditorium Cempaka Sari in Putrajaya, Malaysia. It includes an introduction describing the purpose of acoustic design in controlling sound behavior within an enclosed space like an auditorium. It then provides details on the auditorium's historical background, site information, drawings, methodology used in the acoustic analysis including measuring instruments, data collection methods, and sound equipment specifications. The document also discusses key acoustic phenomena like reverberation, attenuation, echoes and sound shadows. It analyzes the auditorium's design, materials, acoustic treatments and components, sound sources and noise sources. Measurement data on sound levels at different positions is also presented.
Sound acoustics is important for musical instruments, concert halls, surround sound, and hearing aids. Key terms in acoustics include the decibel which quantifies sound levels relative to 0 db, sound travels as vibration waves measured in hertz or cycles per second, the noise reduction coefficient rates acoustic properties of ceiling tiles and panels, and the absorption coefficient describes a material's ability to scatter sound expressed as a fraction of incident sound.
The document discusses the physics of sound. It defines sound as a pressure wave that travels faster through solids than liquids or gases. Sound waves are longitudinal waves that create compressions and rarefactions. The key characteristics of a sound wave are its frequency, amplitude, wavelength, and speed. Frequency is measured in Hertz and determines the pitch of a sound. Amplitude determines loudness. Wavelength is the distance between compressions or rarefactions. Sound waves can be reflected, transmitted, absorbed, or cause diffraction or reverberation when interacting with surfaces. The range of normal human hearing is between 20-20,000 Hz. Different materials are used to absorb sound like porous absorbers, panel absorbers, and resonators
This document discusses various acoustical defects that can occur in buildings, including reverberation, echoes, sound foci, dead spots, insufficient loudness, and exterior noises. It provides explanations of each defect and potential remedies. Reverberation time should be between 0.5 to 5 seconds depending on the quality of sound desired. The shape of the room and use of sound absorbing materials can help control reverberation time. Echoes can be reduced by using splayed walls and absorptive ceiling materials. Sound foci and dead spots arise from the geometric shape focusing or reducing sound in areas and can be addressed through diffusers, reflectors, and absorbent materials. External noise insulation and location away from noise sources also
Noise Control Stratagies in Reinforced Concrete BuildingsIJRES Journal
This study is aimed at bringing out the salient aspects of building noise control. An analysis has been carried out with respect to the noise transmission as well as the characteristics of noise inside buildings. The key issues on building noise control have been included and discussed. A comprehensive study on building noise and on acoustically divisible spaces has been made. It has been observed that a sound insulation of the order of 30 to 35 dB is possible in a given building. Further, the noise propagation parameters in an exhibition hall have been theoretically estimated. The data so obtained has been compared with actual SPL measurements and recorded. Variations in noise levels observed have been explained. Before the partition is made, the SPL drop is faster inside the building but after the partition the drop falls at the rate of 3dB for doubling the distance. The cost of the acoustically divisible partition wall is found to be very high, but the advantage of this partition seems to be creating acoustically divisible spaces where in one can conduct two programs simultaneously, without any disturbance to each other. Prior to the selection and design of control measures, noise sources must be identified and the noise produced must be carefully evaluated.
The document provides background information on a case study of the Wisma MBSA Auditorium Hall in Shah Alam, Malaysia. The objectives of the case study are to understand how auditorium design can influence sound quality, materials used to enhance acoustics, and to produce an analysis report. The auditorium was built in the 1980s and has a capacity of 1400 people. Floor plans, sections and photos of the auditorium are presented. Acoustic concepts like reverberation, sound absorption, and sound propagation are discussed. Methodology details measuring sound levels and documenting the auditorium. The analysis examines the auditorium's sound reinforcement system, speakers and advantages/disadvantages of the system. Sound propagation readings in the
This document provides details of a case study on the acoustic design of the Cempaka Sari Auditorium in Putrajaya, Malaysia. It includes an introduction outlining the aims, objectives, and background of the auditorium. The methodology section describes the equipment used to collect acoustic data during site visits, including sound level meters, measuring devices, and cameras. Acoustic theory is discussed around topics like sound intensity, reverberation, attenuation, and design considerations for auditoriums. Drawings of the auditorium plans and sections are also provided.
1. The Solaris and Leisure Centre is a new performing arts complex in Tallinn, Estonia that includes a multifunctional auditorium.
2. Key aspects of the auditorium design include its acoustics, which were informed by an acoustical consultant. Materials with high sound absorption values were selected to regulate reverberation time.
3. The primary sound reinforcement system anchors twin arrays of line array loudspeakers to left and right of the stage, with an overhead array to provide clarity for both music and spoken performances.
This document discusses architectural acoustics and provides information on sound classification, characteristics of musical sound, intensity, absorption coefficient, sound absorbing materials, reverberation, and factors affecting building acoustics such as reverberation time, loudness, focusing, echo, echelon effect, and resonance. It also covers noise control and discusses remedies for improving acoustics issues in buildings.
Building acoustics is the science of controlling sound in buildings by minimizing noise transmission between spaces. Characteristics of sound include reverberation time, echo, resonance, intensity, velocity, wavelength, timbre, amplitude, frequency, pitch, and loudness. Sound behaves differently with materials through absorption, diffusion, reflection, and transmission. Factors affecting building acoustics include geometry, volume, surface absorption/transmission/reflection, internal/external sound generation, and airborne transmission. Good building acoustics benefits health, productivity, privacy, intelligibility, and building value. Acoustic design incorporates absorption, diffusion, ceiling treatments, sound masking, and considers needs of different building types like residences, offices, schools,
Acoustic Analysis on Permata Pintar Auditorium (presentation)Carmen Chan
The auditorium was designed to distribute sound evenly throughout the seating areas. Several design elements help achieve this:
1. The fan-shaped layout and minimal 16.5 degree splay angle between rows allows sound to propagate equally without flutter echoes.
2. CMU block walls and a suspended forestage canopy reflect and diffuse sound to reinforce direct sound within 30ms of delay.
3. Measurements found sound intensity levels varied minimally except for areas under the deep gallery, which experience sound shadows due to obstruction of indirect sound waves.
This document discusses architectural acoustics and provides information on sound classification, characteristics of musical sound, intensity, absorption coefficient, sound absorbing materials, reverberation, and factors affecting building acoustics such as reverberation time, loudness, focusing, echo, echelon effect, resonance, and noise. It explains how sound is classified into infrasound, audible sound, and ultrasound. Musical sound produces a pleasing effect while noise produces a jarring effect. Absorption coefficient measures the ratio of absorbed to incident sound energy. Various sound absorbing materials and methods to control reverberation time, noise, and other acoustic issues in buildings are also described.
The document discusses the acoustical design and properties of the Petaling Jaya Civic Centre auditorium. It analyzes the existing sound sources, zoning of seating areas, sound reinforcement system, and how sound travels through reflection, diffusion, absorption, and shadowing. It evaluates the materiality used including timber panels and carpet, and determines the auditorium achieves a recommended reverberation time of 1.25 seconds through its design and material choices.
The document presents an analysis of the acoustic design of the Auditorium Cempaka Sari in Putrajaya, Malaysia, including its architectural design, materials used, acoustic phenomena, and measurements taken of sound levels within the auditorium. It describes the auditorium's shape, volume, seating and stage configuration, and finishes used to achieve the desired reverberation time. Methodologies for data collection including equipment used are also outlined.
The document summarizes an experiment that tested the effectiveness of different common materials for sound insulation. The materials tested included expanded polystyrene foam, stainless steel, wood, and paper. The experiment measured the sound reduction index and transmitted coefficient of each material at different frequencies. The results showed that stainless steel was the most effective at sound insulation, while expanded polystyrene foam and paper were the least effective. Common soundproofing techniques for homes using different materials were also discussed.
Building service.ppt of neeru and aprajeetativar rose
This document discusses building acoustics and provides solutions for acoustic defects. It begins with definitions and characteristics of sound, including transmission, absorption, reflection, and reverberation. Common acoustic defects like echoes, reverberation, insufficient loudness, sound foci, and dead spots are described along with solutions. Various acoustic materials are presented with applications and coefficients. A case study of a hotel demonstrates acoustic design considerations for reception, doors, furniture, ceilings, floors, and glazing.
The document provides a case study analysis of the acoustic design of the Connexion@Nexus auditorium located in Bangsar South City, Kuala Lumpur, Malaysia. It begins with an introduction that outlines the aims, objectives, and background of the auditorium. The document then discusses acoustic phenomena such as sound intensity levels, reverberation, attenuation, and echoes. It also analyzes the acoustic design of auditoriums in general. The document presents the methodology used to study the Connexion@Nexus auditorium. It includes an acoustic analysis of the auditorium's design, materials, sound sources, and sound propagation. Diagrams and photographs are also included.
THE ACOUSTIC DESIGN OF CONNEXION@NEXUSYen Min Khor
The document provides a case study analysis of the acoustic design of the Connexion@Nexus auditorium located in Bangsar South City, Kuala Lumpur, Malaysia. It begins with an introduction that outlines the aims, objectives, and background of the auditorium. The document then discusses acoustic phenomena such as sound intensity levels, reverberation, attenuation, and echoes. It also analyzes the acoustic design considerations for an auditorium. The methodology section describes the equipment used to collect acoustic data. Finally, the acoustic analysis section evaluates the auditorium design and materials based on measurements and observations taken at the site.
The document provides details on a case study of the acoustic design of the Damansara Performing Arts Centre auditorium in Malaysia. It includes the auditorium layout plans, an introduction to acoustic phenomena like absorption, reflection and reverberation. It also discusses key considerations for acoustic design in auditoriums such as volume, seating arrangement and use of sound absorbers. Methodology details the equipment used like a sound level meter to collect acoustic data and analyze design aspects like shape and seating layout that could impact sound propagation.
1) Mono recording uses a single channel and microphone to record sound, which is played back through one speaker. This results in smaller file sizes but lacks stereo sound.
2) Stereo recording uses two channels to create a mirrored sound representation played back through two speakers. This allows for sound perspective and location.
3) Audio editing software like Logic and Audacity can be used to clean up recordings by removing unwanted noise and adding effects. A fixed or detached microphone can improve sound quality depending on the recording situation.
DEGREE SEM 5 BUILDING SCIENCE PROJECT 01 ACOUSTIC CASE STUDYjolynnTJL
This document provides a case study on the acoustic design of the Majlis Bandaraya Shah Alam auditorium. It begins with an introduction to acoustic design and the project brief. It then reviews concepts of sound reflection, absorption, direct and indirect sound paths, and reverberation time. The document describes the site, including drawings of the auditorium layout and typical uses. It analyzes existing sound sources such as the surround sound system. It also evaluates noise sources and control methods. The document aims to study how material properties and design features impact the auditorium's acoustics.
This document provides a case study on the acoustic design of the Majlis Bandaraya Shah Alam auditorium. It begins with an introduction to acoustic design and the project brief. It then reviews concepts such as sound reflection, absorption, direct and indirect sound paths, and reverberation time. The document describes the site, including drawings, typical uses, and zoning. It analyzes existing sound sources and noise control. It examines the acoustic properties of materials used in the floor, walls, ceiling, seating, stage, openings, and balcony. It also provides an acoustic analysis of incident sound, reflection and absorption, diffusion and dispersion, and reverberation time calculation. It concludes by discussing issues and recommendations.
This document provides a case study on the acoustic design of the Majlis Bandaraya Shah Alam auditorium. It begins with an introduction to acoustic design and the project brief. It then reviews concepts such as sound reflection, absorption, direct and indirect sound paths, and reverberation time. The document describes the site, including drawings and zoning. It analyzes existing sound sources and noise control. It examines the acoustic properties of materials used in the floor, walls, ceiling, seating, stage, openings, and balcony. It also provides an acoustic analysis of the site, covering incident sound, reflection and absorption, diffusion and dispersion, and reverberation time calculation. It concludes by discussing issues and recommendations.
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Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
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Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
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A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
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Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
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- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
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- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
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- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
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