First of all, in order to achieve sound quality in a good hall, it is a prerequisite to do a good job of acoustic decoration. Second, it is the role played by sound systems and equipment. Acoustic decoration is the use of acoustic principles and the use of fitting materials to meet the requirements of decoration, and to meet the relevant professional indicators. So what are the acoustic renovation programs ? Let's take a look together.
Acoustic renovation program A. Background noise is less than or equal to NR35; B. Sound insulation, vibration isolation measures should be a good sound insulation in the hall measures, sound insulation and vibration isolation index according to GB3096-82 "urban area environmental noise standard" residents of cultural and educational areas The implementation is: 50dBA between daytime and 40dBA at night. C. Architectural Acoustics Indicators 1) Resonance, Echoes, Vibrating Echoes, Room Standing Waves, Acoustic Focusing, Sound Propagation: There must be no resonance in buildings, doors, windows, suspended ceilings, glass, chairs, and decorative objects; halls must not appear in the hall. Defects such as echo, tremor echo, room standing wave and sound focus, etc., should spread the sound field evenly.
2) Reverberation time Reverberation time is the primary indicator to be controlled in acoustic decoration and is the essence of acoustic decoration. Whether the hall sound quality is beautiful or not is a decisive factor, and it is also the only hall acoustic parameter that can be measured with scientific instruments. . In fact, if you do not take it seriously, the reverberation time is extremely difficult to control to the best value. This is the reason why many halls and even professional theaters have poor sound quality. Therefore, it is not a simple soft pack or carpet that will solve the problem. Different usage halls have different reverberation time requirements. This is the result of continuous summary and statistics of global acoustic experts over the past 100 years. A. Sound absorption treatment shall be done on the surrounding walls, floors and ceilings: 1. Strong sound-absorbing decorative surfaces shall be installed on the back of the stage and opposite the stage; 2. Two side wall windows may be installed with thick curtains; 3. Other parts of the two side walls (Includes windows), should absorb the bass wood structure (or wall skirts to do this structure around the wall); 4. The ground should be installed on the wooden floor; 5. Install sound-absorbing ceilings;
B. Sound insulation treatment to be done on surrounding walls and suspended ceilings: There will be a variety of noise sources outside the public hall, such as construction sites, factories, schools, highways, pipelines, etc., or another meeting room or office next door. In order to ensure a good listening environment or office environment, strict sound insulation processing must be carried out. 1. Lightweight steel wall structure of the steel frame. There is often a seam (especially a roof) between the steel frame and the light wall, which makes it easy to penetrate the sound. The joint between the roof and the surrounding wall surface must be strictly sealed (not light seal, but sound sealing, requiring thickness at the seal, thickness consistent with the body wall, tight seal, light wall structure, simple light steel keel wall - roof And the wall is too thin, the sound insulation is not very large; the roof and surrounding walls should be a layer of sound insulation structure, it is recommended to use the spray foam sound insulation material or the United States imported spray type environmental protection plant soundproof cotton; use this method , It is not easy to have holes left behind, it is more rigorous, the construction is also convenient and fast; 3, the sound insulation of ordinary windows is not very large - it is recommended to use thick windows and insulating glass; 4. The sound insulation of ordinary doors is not Very large - it is recommended to use thick doors or special soundproof doors; 5, the pipe through the wall is a weak link - the pipe through the wall is often left holes, without careful treatment, leaving noise hazards, so that other sound insulation If the renovation is completed, it is a hidden project and it is extremely difficult to find and handle it once it is finished. It is recommended to use spray foam sound insulation material or spray-type environmental protection plant-type sound insulation cotton that is imported from the United States. Holes that are not left are to be covered tightly; Noise in the pipeline - noise in the city is often generated by fan ducts in the air-conditioning system, for which reason noise restrictions are imposed on the installation of air-conditioning systems, which is often easily overlooked. The professional noise reduction of the pipeline may be completed according to the above explanations and it can be completed a vast acoustic decoration, if it is really done is also a very meaningful and useful value. Everyone must pay attention to it, otherwise serious words may affect the layout of the entire project, so this is a very technical job. But in general, if you follow the above plan, it will really succeed!
Xiao Bian concludes: The above introduced the acoustic decoration project for everyone and hopes to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
Acoustic renovation program A. Background noise is less than or equal to NR35; B. Sound insulation, vibration isolation measures should be a good sound insulation in the hall measures, sound insulation and vibration isolation index according to GB3096-82 "urban area environmental noise standard" residents of cultural and educational areas The implementation is: 50dBA between daytime and 40dBA at night. C. Architectural Acoustics Indicators 1) Resonance, Echoes, Vibrating Echoes, Room Standing Waves, Acoustic Focusing, Sound Propagation: There must be no resonance in buildings, doors, windows, suspended ceilings, glass, chairs, and decorative objects; halls must not appear in the hall. Defects such as echo, tremor echo, room standing wave and sound focus, etc., should spread the sound field evenly.
2) Reverberation time Reverberation time is the primary indicator to be controlled in acoustic decoration and is the essence of acoustic decoration. Whether the hall sound quality is beautiful or not is a decisive factor, and it is also the only hall acoustic parameter that can be measured with scientific instruments. . In fact, if you do not take it seriously, the reverberation time is extremely difficult to control to the best value. This is the reason why many halls and even professional theaters have poor sound quality. Therefore, it is not a simple soft pack or carpet that will solve the problem. Different usage halls have different reverberation time requirements. This is the result of continuous summary and statistics of global acoustic experts over the past 100 years. A. Sound absorption treatment shall be done on the surrounding walls, floors and ceilings: 1. Strong sound-absorbing decorative surfaces shall be installed on the back of the stage and opposite the stage; 2. Two side wall windows may be installed with thick curtains; 3. Other parts of the two side walls (Includes windows), should absorb the bass wood structure (or wall skirts to do this structure around the wall); 4. The ground should be installed on the wooden floor; 5. Install sound-absorbing ceilings;
B. Sound insulation treatment to be done on surrounding walls and suspended ceilings: There will be a variety of noise sources outside the public hall, such as construction sites, factories, schools, highways, pipelines, etc., or another meeting room or office next door. In order to ensure a good listening environment or office environment, strict sound insulation processing must be carried out. 1. Lightweight steel wall structure of the steel frame. There is often a seam (especially a roof) between the steel frame and the light wall, which makes it easy to penetrate the sound. The joint between the roof and the surrounding wall surface must be strictly sealed (not light seal, but sound sealing, requiring thickness at the seal, thickness consistent with the body wall, tight seal, light wall structure, simple light steel keel wall - roof And the wall is too thin, the sound insulation is not very large; the roof and surrounding walls should be a layer of sound insulation structure, it is recommended to use the spray foam sound insulation material or the United States imported spray type environmental protection plant soundproof cotton; use this method , It is not easy to have holes left behind, it is more rigorous, the construction is also convenient and fast; 3, the sound insulation of ordinary windows is not very large - it is recommended to use thick windows and insulating glass; 4. The sound insulation of ordinary doors is not Very large - it is recommended to use thick doors or special soundproof doors; 5, the pipe through the wall is a weak link - the pipe through the wall is often left holes, without careful treatment, leaving noise hazards, so that other sound insulation If the renovation is completed, it is a hidden project and it is extremely difficult to find and handle it once it is finished. It is recommended to use spray foam sound insulation material or spray-type environmental protection plant-type sound insulation cotton that is imported from the United States. Holes that are not left are to be covered tightly; Noise in the pipeline - noise in the city is often generated by fan ducts in the air-conditioning system, for which reason noise restrictions are imposed on the installation of air-conditioning systems, which is often easily overlooked. The professional noise reduction of the pipeline may be completed according to the above explanations and it can be completed a vast acoustic decoration, if it is really done is also a very meaningful and useful value. Everyone must pay attention to it, otherwise serious words may affect the layout of the entire project, so this is a very technical job. But in general, if you follow the above plan, it will really succeed!
Xiao Bian concludes: The above introduced the acoustic decoration project for everyone and hopes to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
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