The acoustic properties of a room design should ensure that it is easy to both speak and listen with a high degree of intelligibility. Reverberation Time is the single most important parameter used to evaluate room acoustics.
Sound level meters can be used to measure noise in a variety of applications, from measuring in the workplace, in the environmental pollution in public or private places and for the detection of noise generated from any artificial source such as machinery, equipment and articles engine.
RTASC Lite - Real Time Audio System Check LiteDru Wynings
RTASC helps you verify hardware and software functionality of an audio product. It's specifically targeted at OEMs that make Voice-enabled products with both microphones and loudspeakers.
Studio monitors are loudspeakers that are specifically designed for professional audio production applications, such as recording studios, filmmaking, television studios, radio studios, and project or home studios. They are essential in places where critical decisions regarding sound reproduction are crucial.
The acoustic properties of a room design should ensure that it is easy to both speak and listen with a high degree of intelligibility. Reverberation Time is the single most important parameter used to evaluate room acoustics.
Sound level meters can be used to measure noise in a variety of applications, from measuring in the workplace, in the environmental pollution in public or private places and for the detection of noise generated from any artificial source such as machinery, equipment and articles engine.
RTASC Lite - Real Time Audio System Check LiteDru Wynings
RTASC helps you verify hardware and software functionality of an audio product. It's specifically targeted at OEMs that make Voice-enabled products with both microphones and loudspeakers.
Studio monitors are loudspeakers that are specifically designed for professional audio production applications, such as recording studios, filmmaking, television studios, radio studios, and project or home studios. They are essential in places where critical decisions regarding sound reproduction are crucial.
Studio monitors are loudspeakers that are specifically designed for professional audio production applications, such as recording studios, filmmaking, television studios, radio studios, and project or home studios. They are essential in places where critical decisions regarding sound reproduction are crucial.
Introducing the worlds first Smart Double Protection (SDP) Ear Muff using the ground breaking SENS® technology. Using a smart combination of our SP Ear Plug and SM Ear Muff technology, the Sensear SDP enables clear communication via Two-Way Radio and Bluetooth cell phone in extreme noise levels up to 120db whilst still remaining protected.
Sensear’s world leading technology is solving high noise communication challenges for the Shipping industry. This case study specifically highlights the solutions Sensear has delivered to Norce Offshore, one of Australia’s leading shipping operators. These solutions can be applied to a broad range of shipping operations.
The Phonak nano is an excellent new custom hearing system for hearing disables in kolkata which, in addition to its outstanding Spice+ acoustic performance, is also almost invisible, is comfortable and offers a secure fit in the auditory canal.
Contact us for Best Digital Hearing Solution in Kolkata - Bengal Speech & Hearing pvt ltd
Discover the secrets to choosing the perfect acoustic flooring for your space with our comprehensive Acoustic Flooring Guide. Whether you're looking to reduce noise in a busy office, improve sound quality in a recording studio, or enhance comfort in a residential setting, this guide has everything you need to know. With step-by-step instructions and expert advice, you'll learn how to assess your needs, compare different types of flooring materials, and find the right solution for your space. From understanding decibel ratings to exploring the latest innovations in flooring technology, this guide is your ultimate resource for acoustically enhanced flooring. Download your free copy today!
A presentation on the fundamentals of HVAC Acoustics.
Includes sections on -
Amplitude and Frequency
Octave band noise levels
Different rating criteria
Noise paths (breakout noise, airborne, outdoor, radiated)
Controlling breakout noise, airborne noise, and outdoor noise.
We, Ecotone Acoustic Enclosure are India’s most reliable manufacturers of Acoustic products for Noise Control, NVH Test Chambers, Acoustic, Architectural, Auditoriums, Theatres, Conference halls, Gymnasium halls, Offices, Banquet halls, Design and Set-up of Recording Studios, Listening rooms, Home Theatres etc.
Ecotone Systems is the largest manufacturers and providers of Acoustic wall and ceiling products that provide Architects and Building owners an extensive range of products to chose from, which suits their aesthetic as well as acoustic requirements. Ecotone Acoustic Enclosure strives to help its customers enjoy the best ambience, at the same time minimizing its environmental impact as much as possible by providing sustainable, innovative and high-performance solutions for todays and tomorrows noise problems.
We, Ecotone Acoustic Enclosure are India’s most reliable manufacturers of Acoustic products for Noise Control, NVH Test Chambers, Acoustic, Architectural, Auditoriums, Theatres, Conference halls, Gymnasium halls, Offices, Banquet halls, Design and Set-up of Recording Studios, Listening rooms, Home Theatres etc.
Ecotone Systems is the largest manufacturers and providers of Acoustic wall and ceiling products that provide Architects and Building owners an extensive range of products to chose from, which suits their aesthetic as well as acoustic requirements. Ecotone Acoustic Enclosure strives to help its customers enjoy the best ambience, at the same time minimizing its environmental impact as much as possible by providing sustainable, innovative and high-performance solutions for todays and tomorrows noise problems.
Slides used in a May 11, 2010 presentation at the monthly meeting of the Illinois Chapter ASHRAE by David G. Paoli, P.E., senior engineer, Shiner + Associates, Inc.
Studio monitors are loudspeakers that are specifically designed for professional audio production applications, such as recording studios, filmmaking, television studios, radio studios, and project or home studios. They are essential in places where critical decisions regarding sound reproduction are crucial.
Introducing the worlds first Smart Double Protection (SDP) Ear Muff using the ground breaking SENS® technology. Using a smart combination of our SP Ear Plug and SM Ear Muff technology, the Sensear SDP enables clear communication via Two-Way Radio and Bluetooth cell phone in extreme noise levels up to 120db whilst still remaining protected.
Sensear’s world leading technology is solving high noise communication challenges for the Shipping industry. This case study specifically highlights the solutions Sensear has delivered to Norce Offshore, one of Australia’s leading shipping operators. These solutions can be applied to a broad range of shipping operations.
The Phonak nano is an excellent new custom hearing system for hearing disables in kolkata which, in addition to its outstanding Spice+ acoustic performance, is also almost invisible, is comfortable and offers a secure fit in the auditory canal.
Contact us for Best Digital Hearing Solution in Kolkata - Bengal Speech & Hearing pvt ltd
Discover the secrets to choosing the perfect acoustic flooring for your space with our comprehensive Acoustic Flooring Guide. Whether you're looking to reduce noise in a busy office, improve sound quality in a recording studio, or enhance comfort in a residential setting, this guide has everything you need to know. With step-by-step instructions and expert advice, you'll learn how to assess your needs, compare different types of flooring materials, and find the right solution for your space. From understanding decibel ratings to exploring the latest innovations in flooring technology, this guide is your ultimate resource for acoustically enhanced flooring. Download your free copy today!
A presentation on the fundamentals of HVAC Acoustics.
Includes sections on -
Amplitude and Frequency
Octave band noise levels
Different rating criteria
Noise paths (breakout noise, airborne, outdoor, radiated)
Controlling breakout noise, airborne noise, and outdoor noise.
We, Ecotone Acoustic Enclosure are India’s most reliable manufacturers of Acoustic products for Noise Control, NVH Test Chambers, Acoustic, Architectural, Auditoriums, Theatres, Conference halls, Gymnasium halls, Offices, Banquet halls, Design and Set-up of Recording Studios, Listening rooms, Home Theatres etc.
Ecotone Systems is the largest manufacturers and providers of Acoustic wall and ceiling products that provide Architects and Building owners an extensive range of products to chose from, which suits their aesthetic as well as acoustic requirements. Ecotone Acoustic Enclosure strives to help its customers enjoy the best ambience, at the same time minimizing its environmental impact as much as possible by providing sustainable, innovative and high-performance solutions for todays and tomorrows noise problems.
We, Ecotone Acoustic Enclosure are India’s most reliable manufacturers of Acoustic products for Noise Control, NVH Test Chambers, Acoustic, Architectural, Auditoriums, Theatres, Conference halls, Gymnasium halls, Offices, Banquet halls, Design and Set-up of Recording Studios, Listening rooms, Home Theatres etc.
Ecotone Systems is the largest manufacturers and providers of Acoustic wall and ceiling products that provide Architects and Building owners an extensive range of products to chose from, which suits their aesthetic as well as acoustic requirements. Ecotone Acoustic Enclosure strives to help its customers enjoy the best ambience, at the same time minimizing its environmental impact as much as possible by providing sustainable, innovative and high-performance solutions for todays and tomorrows noise problems.
Slides used in a May 11, 2010 presentation at the monthly meeting of the Illinois Chapter ASHRAE by David G. Paoli, P.E., senior engineer, Shiner + Associates, Inc.
Environmental "noise industry" is not fit for purpose...Peter Wilson
The "noise industry" is generally woefully ignorant of diagnostic techniques and modern noise control methods. Consequently, thousands of people are needlessly exposed to stressful noise over prolonged periods, resulting in unnecessary deaths from stress (BMJ/WHO reports). Very large sums of money are also wasted on inappropriate mitigation - there is a diagnostic process that must be followed to evaluate any noise nuisance problem. The presentation includes case studies illustrating how so much money has been wasted on poor diagnoses and inappropriate noise control measures - plus examples of how it should be done using best practice...
The SOUNDproof racks are designed to perform the absorption of the created noise from the active equipments mounted inside the rack. Wood veneer exterior view, Thanks to front glass door the cabinets can be more fitting for all workplace. Noise from active IT equipment in a high technology workspace or public area can increase stress and decrease productivity, leading to diminished profits. Sometimes, cost or space constraints may prohibit building and maintaining a separate server room. When locating noisy network equipment near workers or visitors is unavoidable, keeping the sound to a minimum is essential for optimum comfort, safety and productivity. To reduce the noise level, the cabinet is equipped with a silent fan ventilation system with a maximum noise level of 29-30dB. Side and back panels are metal. Fully lockable. Has a professional technical and aesthetic appearance with decorative wooden finishing in front door and top hat structure. The product range is distinguished by its environmentally-friendly and exclusive RAL 9005 Black, fine-grained soft-touch paint application with different wood options.
Acoustic Testing of HVAC Products - What is tested and why is it important?BSRIA
Rebecca Hogg, BSRIA's Acoustic Consultant presents the testing of HVAC products and why it is important. She gives an idea of the noise sources, why frequency should be measured and how to prevent and react.
With the help of our in-depth Acoustic Flooring Guide, learn how to select the ideal acoustic flooring for your room. This book provides all the information you need, whether you want to improve comfort in a domestic setting, increase sound quality in a recording studio, or lessen noise in a busy office. You'll learn how to evaluate your requirements, contrast various flooring materials, and choose the best option for your space with the help of step-by-step guidelines and professional assistance. This guide is your complete reference for acoustically enhanced flooring, covering everything from comprehending decibel levels to studying the most recent advancements in flooring technology. Get your free copy right away!
خارطة الطريق والمبادئ التوجيهية لإصدار
واقرار اللوائح الخضراء في دولة الكويت.
Roadmap and Guidelines
to decide and issue
the Green Regulations in Kuwait State.
VAV Boxes is a solution to control Comfort for independent zones, but this solution hiding a lot of challenges, in this presentation we share with you our solutions to ensure the ultimate comfort
Looking for New Challenges - نتطلع لتحديات جديدة
Being an ARTIST
Able to provide the sensitive BALANCE between Health, Comfort and Efficiency with Safety & without Energy Wastage
فن التوازن بين توفير الراحة والصحة بفعالية ودون هدر للطاقة
رسالتي إلى المؤتمر الخامس لحوار تبريد المناطق 2021 في دبي وفرص السوق الحقيقية - م. جمعة
My Message to the 5th DC Dialogue 2021 in Dubai & TRUE Market Opportunity - by Eng. Juma
كيف تبدو المكاتب خلال جائحة الفيروسات التاجية؟ هل هذه الإجراءات كافية لحماية موظفيهم How offices look like during coronavirus pandemic how they can return their employees and protect them- by getco
عظم فعالية فريقك للتكييف والتهوية عن طريق محاضراتنا للتدريب المفصلة على حسب حاجتكم
Increase Performance of your HVAC Team by our Customized Training Courses
أساسيات ومبدأ عمل أبراج التبريد
Fundamentals of Cooling Tower, Types, Applications, Performance, Energy Efficiency, Water Conservation & Service Maintenance
نحن نفهم تمامًا اللوائح المحلية والدولية
We fully understand the Local & International Regulations
نحن نفهم تماما دورالتكييف والتهوية لنشر العدوى
We fully understand the role of HVAC to spread infection
نحن مجهزين تجهيزا كاملا من المهندسن وأدوات ومعدات قياس
We fully equipped with Engg. tools & measuring equipment.
نحن قادرون بشكل كامل على ترقية و / أو تعديل النظام الحالي
We fully capable to upgrade and/or modify the existing system
نظرية فى التغيير الإسلامي السلمي و تبسيط لكتاب صناع الحياة (لصاحبه الشيخ/ محمد أحمد الراشد) و وصف لأنواع صناع الحياة و الدعوة للجميع للمساهمة كل حسب تخصصه و من واقع خبرته لننهض معا بهذه الأمة التى من قدر الله أنها ستنهض لأكون و تكون و نكون ممن صدق فيهم قول الله عز و جل (لا يستوى منكم من أنفق من قبل الفتح و قاتل ) اللهم إجعلنا من صناع هذا المستقبل المشرق الذى تشتاق لعدله البشرية و تتعطش لرحمته الأرض و ترتقى بعقيدته السماء .... اللهم إستجب ... آمين
كيف تبدو المطاعم خلال جائحة الفيروسات التاجية؟ هل هذه الإجراءات كافية لحماية ضيوفهم؟
How restaurants look like during coronavirus pandemic? Is these measures are enough to protect their guests?
فرصة ما بعد جائحة الكورونا: منظومة جديدة لإقامة العمالة الفنية في دول الخليج العربي
The opportunity after the Corona pandemic
Establishing a New Residential Sys. for Technical Labor in the GCC
Q&A What is the effect of Low CHW Delta-T on Efficiency & Comfort
التأثير السلبي لإنخفاض فرق درجات حرارة المياه الباردة على كفاءة منظومة التكييف و مستويات الراحة لشاغلي المكان
لماذا انتشر وباء فيروس الكورونا في شمال إيطاليا و ليس في وسطها أو جنوبها
Why has the pandemic virus spread in northern Italy, not in the center or south of it May 2020 by GETCO- fantastic
أصبح من الواضح جدًا التأثير السلبي لمنظومة التدفئة والتهوية وتكييف الهواء على IAQ - جودة الهواء الداخلي - بما في ذلك البكتيريا والفيروسات بما في ذلك فيروس الكورونا ، وهذا التحديث هو متابعة لأحدث التقارير من المنظمات والجامعات المحترمة التي صادفتها ، كما أنني أتطرق إلى عناصر التكييف الرئيسية التي يمكنها كن جزءًا من الحل.
It became very clear the negative effect of HVAC on IAQ- Indoor Air Quality- including bacteria and viruses including Coronavirus, this repot is an update for latest reports from respected organizations and universities I came across, also I touch in the main HVAC elements that can be part of the solution.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Method statement to measure noise level by eng. juma yousef juma saleh- getco
1. Method Statement to Measure
Noise Level of A/C-by Getco
لقياس الصحيحة الطريقة
التكييف من الصوت مستوى
2. Acoustic Comfort - الراحة منطقةالصوتية
Acoustic comfort
means having the
right level and
quality of noise to
use the space as
intended by
International
Standard.
الصوتية الراحة منطقة
المستوى تحقيق تعنى
ك فى للصوت الصحيحل
له المقدرة بالحدود حيز
العالمي المقاييس حسبة.
3. Importance - األهمية
People are more
productive & happy
when they’re not
distracted by noises
from outside or from
surrounding spaces and
occupants. Acoustic
comfort is especially
important for schools,
hospitals & office BLD.
Not to forget Bedrooms
األ فى تزيد الناس أنتاجيةماكن
عملهم يقطع ال عندما و الهادئة
أو الخارج من إزعاج أي
إزعاج أو الداخلى المحيط
المكان شاغلى من مفاحئ,و
شعورهم على ذلك ينعكس
بالسعادة.
فى جدا مهمة الصويتة الراحة
المدارس مثل الحساسة األماكن
و المكاتب و المستشفيات وال
النوم غرف نغفل أن يمكن.
4. Environmental Noise-البيئة من اإلزعاج
Step-0:
Review the
international Noise
level standard.
Such as:
الخطوة-0:
المستويات مراجعة
لمستوى العالمية
الصوت,مثل:
Two Levels Per Day:
• Night from: 10 p.m. to 7 a.m.
• Day from: 7 a.m. to 10 p.m.
اليوم فى مختلفين مستويين:
•من ليال10إلى مساءا7صباحا.
•من نهارا7إلى ضباحا10مساءا.
EPA: Environmental Protection Agency
22. Plenum Box in the back of Indoor Unit will
reduce sucking noise of FCU.
23. Possible to fix special “S”-Type Plenum
to avoid direct Indoor Unit Noise
( بشكل صندو تركيب و توريدSلتجميع )
.الداخلية الوحدة صوت عزل و الراجع الهواء
Supply & Fix plenum box in
(S) Shape to collect return air
and isolate indoor unit.
صوت بعازل الداخل من يبطن أن على
الكفاءة على خا
Will be covered with special
acoustic liner that help to
reduce noise level
32. Air Direction
Air Direction
Air Direction
من أفضل المواضع أيمصدرولماذا الصوت؟؟
Where to keep from noise source? Why?
33. Anther advantage of Controlling of Noise Level is to earn additional LEED Points (Leadership in Energy & Environmental Design)
Intent
To promote occupants’ comfort, well-being, and productivity by
improving indoor air quality.
34. Requirements
HVAC Background Noise
Achieve a maximum background noise level of 40 dBA
from heating, ventilating, and air-conditioning (HVAC)
systems in classrooms and other core learning spaces
.
Follow the recommended methodologies and best
practices for mechanical system noise control in ANSI
Standard S12.60–2010, Part 1, Annex A.1; the 2011
HVAC Applications ASHRAE Handbook, Chapter 48,
Noise and Vibration Control (with errata); AHRI
Standard 885–2008; or a local equivalent for projects
outside the U.S.
1EQ: Indoor Environmental Quality:
Prerequisite Minimum Acoustic Performance
35. Requirements
Exterior Noise
For high-noise sites (peak-hour Leq above 60 dBA during school hours),
implement acoustic treatment and other measures to minimize noise
intrusion from exterior sources and control sound transmission between
classrooms and other core learning spaces. Projects at least one-half
mile from any significant noise source (e.g., aircraft overflights,
highways, trains, industry) are exempt.
Reverberation Time
Adhere to the following reverberation time requirements.
Classrooms and Core Learning Spaces < 20,000 Cubic Feet
Design classrooms and other core learning spaces to include sufficient
sound-absorptive finishes for compliance with the reverberation time
requirements specified in ANSI Standard S12.60–2010, Part 1, Acoustical
Performance Criteria, Design Requirements and Guidelines for Schools,
or a local equivalent for projects outside the U.S.
1EQ: Indoor Environmental Quality:
Prerequisite Minimum Acoustic Performance (School)
36. Option 1
For each room, confirm that the total surface area of
acoustic wall panels, ceiling finishes, and other sound-
absorbent finishes equals or exceeds the total ceiling
area of the room (excluding lights, diffusers, and
grilles). Materials must have an NRC of 0.70 or higher
to be included in the calculation.
Option 2
Confirm through calculations described in ANSI
Standard S12.60-2010 that rooms are designed to
meet reverberation time requirements as specified in
that standard.
1EQ: Indoor Environmental Quality:
Prerequisite Minimum Acoustic Performance (School)
37. For Support Kindly contact: Eng. Juma Yousef
+962-7-9074-6811 (jumayjuma@gmail.com)
Green Earth Technology Co. Jordan -Getco– األرض تكنولوجيا شركةالخضراء-األردن-جيتكو-
https://www.linkedin.com/in/juma-yousef-j-saleh-%D8%AC%D9%85%D8%B9%D8%A9-%D9%8A%D9%88%D8%B3%D9%81-
%D8%AC%D9%85%D8%B9%D8%A9-%D8%B5%D8%A7%D9%84%D8%AD-9941b049/
https://www.facebook.com/greenearthtechnologycompany/
https://www.facebook.com/groups/780970768708352/
jumayjuma@gmail.com