29 Anechoic Chamber Manufacturers in 2024
This section provides an overview for anechoic chambers as well as their applications and principles. Also, please take a look at the list of 29 anechoic chamber manufacturers and their company rankings. Here are the top-ranked anechoic chamber companies as of May, 2024: 1.Frankonia Germany EMC Solutions GmbH, 2.Castle Microwave Limited, 3.IAC Acoustics.
Table of Contents
What Is an Anechoic Chamber?
An anechoic chamber is a room in which there is no sound reflection and the echoes of sound in the room can be ignored.
There are two types of anechoic chambers: "full-anechoic chamber" and "semi-anechoic chamber". A "full-anechoic chamber" has six sound-absorbing surfaces (sound-absorbing wedges) on the floor, walls, and ceiling, while a "semi-anechoic chamber" has five sound-absorbing surfaces on the walls and ceiling, and a sound-reflecting surface on the floor.
In anechoic chambers, the ceiling, floor, and walls are highly sound-absorbing, creating the condition of a free-field. Vibrations and acoustics outside the room are blocked out, and the ceiling, floor, and walls are covered with thick sound-absorbing material, so there is no reverberation in the room.
Uses of Anechoic Chambers
Anechoic chambers can be used for acoustic measurements (e.g. sound power level measurements) of products that generate sound, such as automobiles, power trains, electrical equipment, and communication devices. The measurement methods, the configuration of anechoic chambers themselves, and their specifications are established by the ISO.
In recent years, there has been an increasing demand for large-sized hemi-anechoic chambers for pass-by noise measurements in automobiles. Combined tests are also conducted by adding wind tunnel test facilities and constant temperature and humidity facilities. The room can be used not only for physical measurement of sound sources but also for psychoacoustic experiments to evaluate the effects on human psychology and auditory perception.
Principle of Anechoic Chambers
In an anechoic chamber, reverberation is so low that it is aurally equivalent to having no ceiling, floor, walls, or any other objects in the surrounding area. When the room lights are turned off in an anechoic chamber, a unique floating sensation may be felt.
Even if you speak in an anechoic chamber, only a weak voice can be heard from a short distance away. The energy used for vocalization is absorbed by the inner surface of the room, and the audible volume is inversely proportional to the square of the distance from the speaker. This law of physics is called the inverse square law.
Structure of an Anechoic Chamber
A typical anechoic chamber consists of glass wool made of a wire frame and thin cloth, placed in a wedge-shaped mold, with the inside of the room on the pointed side, and with no gaps between the ceiling, floor, and walls.
A room in which only the floor surface is not absorbing sound is called a semi-anechoic chamber, and can be used for measurements of automobiles and home appliances. The floor of an anechoic chamber is floated by means of a slatted steel frame or a wire stretched in a grid pattern. The entire room may be floated from the building by an elastic material.
Glass wool by itself is an excellent sound absorbing material, but when it is wedged, sound waves that reach the wedge surface are repeatedly reflected and absorbed by the surfaces of adjacent wedges, making it even more effective in sound absorption.
How to Select an Anechoic Chamber
1. High Sound Insulation Performance
An anechoic chamber is a completely sealed space, which completely shuts out (shuts out) sound from outside the room, making the room very quiet. This is because the background noise in an anechoic chamber is lower than the sound generated by the object under test. In order to measure a small sound, the sound insulation performance must be proportionally higher. Therefore, a rigid body such as concrete or sound insulation panels is necessary for the sound insulator or sound insulation layer in an anechoic chamber.
2. High Sound Absorption Performance
Sound generated from the object to be measured in the room is absorbed by the sound-absorbing surface. However, there is a difference in sound absorption between high frequency and low- frequency sounds. Basically, the lower the sound, the harder it is to absorb. Therefore, if an anechoic chamber is used to measure low sound, the sound-absorbing body must have a proportionally higher sound absorption performance. Therefore, the sound-absorbing body or sound-absorbing layer in an anechoic chamber requires a sound-absorbing wedge or a thick sound-absorbing block.
3. Space Saving
In order to achieve "high sound insulation performance" and "high sound absorption performance," proportionally thicker layers are required. A full-scale anechoic chamber may be massive, with a sound insulation layer of 500 mm or more and a sound absorption layer of 1,000 mm or more, and requires a large space for installation.
In many cases, it is practically difficult to secure a large space in Japan. Conversely, in recent years, anechoic chamber manufacturers have improved their technology and developed anechoic chambers with thinner sound insulation and sound absorption layers. Since the layers are thin, installation space can be saved and the effective space in the room can be increased. In view of the above, anechoic chambers with thin and high sound insulation and sound absorption performance are required.
List of 29 Anechoic Chamber Manufacturers
*Including some distributors, etc.
Sort by Features
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- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- Germany
- India
- Netherlands
- United Kingdom
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IAC Acoustics
Anechoic Chambers
Manufacturer Overview
IAC Acoustics, established in 1949 and headquartered in Illinois, United States, is a manufacturer and supplier specializing in metal noise control solutions. The company’s portfolio caters to industrial, architectural, and medical applications. Their industrial solutions include in-plant and outdoor enclosures, noise barriers, and anechoic chambers. Architectural solutions include secure facilities, acoustical doors, windows, and music practice rooms. Their medical solutions include audiology booths and test chambers. IAC Acoustics provides noise control products and acoustic systems locally and internationally to clients across various industries.
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eNoiseControl
Acoustic Test Chamber
Company Overview
eNoise Control, established in 1998 and headquartered in Noblesville, IN, USA, is a manufacturer and supplier of noise control products and consulting services. The company provides noise control solutions for industrial, commercial, and community clients across North America. Its products include sound blankets, acoustical panels, and sound baffles, suitable for air compressors, clean rooms, and construction sites. It specializes in providing acoustically tested doors and windows tailored for music studios. The company provides acoustical consulting services, including sound surveys and expert witness testimony.
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ACMAS Technologies Pvt. Ltd
ANECHOIC CHAMBER –WALKIN
Manufacturer Overview
ACMAS Technologies Pvt. Ltd., headquartered in New Delhi, India, is a manufacturer and supplier of scientific, laboratory, and testing equipment. Its extensive product range includes spectrometers for chemical analysis, crucible furnaces for melting and heating, oscilloscopes for waveform visualization, data loggers for data recording, and an array of laboratory equipment like centrifuges, ovens, and balances which are utilized in academic, biotechnology, chemical, electronics, and food and beverage sectors. Apart from its regular equipment, customized scientific equipment as per the requirements and specifications provided are also available.
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KAPOLNEK ACOUSTICS INDIA
Semi Anechoic Chamber
Manufacturer Overview
Kapolnek Acoustics India, established in 2012 and headquartered in Haryana, India, is a manufacturer of noise control equipment and vibration control materials. The company offers attenuation doors with HF screening, noise protection enclosures for production machines, and acoustic doors and windows. Its products include multipurpose acoustic test stands, vibration control materials and equipment, and reverberation rooms and chambers. These products serve cinema halls, music studios, and audition halls, ensuring optimal sound and vibration control.
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Ecotone Systems
Anechoic Chamber
Manufacturer Overview
Ecotone Systems, located in Greater Noida, India, is a manufacturer of radio frequency and green building solutions. Its array of acoustical products, including RF shielded chambers, anechoic chambers, EMI and EMC chambers, along with customized absorbers, are utilized to support testing, development, and functionality of electronic systems in environments where managing electromagnetic interference is crucial. The company offers a diverse range of absorbers, tailored to specific needs with varying thicknesses and absorbencies. All products comply with international standards, and its RF absorbers are specifically tested as per NRL 8093 requirement
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Holland Shielding Systems BV
ANECHOIC CHAMBER
Manufacturer Overview
Holland Shielding Systems BV, established in 1985 in The Netherlands, started as a manufacturer of electronic components and now produces a wide range of frequency and electrical shielding systems. The company's products include PCB shielding cans, farraday cages, frame gaskets used for farraday-integrated tents, EMI displays, mesh foils to shield against magnetic, low-frequency radio waves, microwave radiation, and equipment used in earthing against high-voltage dangers. Their products are used by the FCC to prevent electromagnetic interference and customize facility shielding systems to protect against eavesdropping.
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ETS-Lindgren
Anechoic Chamber
Manufacturer Overview
ETS-Lindgren and ESCO Technologies Company, established in 1995 and headquartered in Cedar Park, Texas, United States, is a wireless, EMC, and acoustic test and measurement equipment manufacturer and supplier. The company's numerous products include RF power amplifiers, 5G antenna measurement chamber systems, and precision multi-axis positioners (MAPS). It also provides various monitoring and testing software suites, tabletop test enclosures, and various testing antennas. These products are used in testing systems for electromagnetic interference and shielding solutions for medical MRI scanners, among others.
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Sonea Latechnology
Assembly type anechoic chamber S
Company Overview
Sonea Latechnology, founded in 2003, and based in Setagaya-ku, Tokyo, is a manufacturer and supplier of specialized acoustic equipment. The company's product range includes assembled anechoic rooms, assembled semi-anechoic rooms, anechoic boxes, soundproof chambers, and soundproof covers. These products are essential for precise acoustic measurements in various settings, from R&D environments in automobile and electronics industries to smaller components' noise assessment. They serve sectors such as automotive manufacturing, electronics, acoustic research, and machinery production. The company also offers design consultation, soundproof chamber construction, and soundproof cover production.
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Frankonia Germany EMC Solutions GmbH
Anechoic Chambers
Company Overview
Frankonia specialzes in equipment used to test for radio wave emissions for antennas, the automotive industry and the military. Frankonia makes equipment used to create a chamber for the tests to be carried out such as wall panals and chambers. They also provide the equipment required for the testing. Founded in 1987 Frankonia is the industry leader in electromagnetic compatibility solutions. Based in Bavaria, Germany Frankonia offer a wide range of services from consulting, construction and manufacturing. Frankonia have a worldwide customer base with their unique products. They tailor to the individual needs to each of their customers.
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Envirotech Systems Pvt. Ltd.
Semi Anechoic Chamber
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ESR Systems
Anechoic Chamber
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Hardik Electronics
Anechoic Chamber
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Active Acoustic Engineers
ANECHOIC CHAMBER
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Changzhou Haozhuo Electronic Co., Ltd.
Emc Anechoic Chamber
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Enviro Acoustics Design Services
Acoustic Chamber
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Ecotone Systems Pvt. Ltd.
Anechoic Chambers
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Testups, LLC
Turn-key Anechoic Chambers
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Gebrüder Heyl Analysentechnik GmbH & Co. KG
Anechoic Chamber
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Envirotech Systems limited
Anechoic Chamber
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JV MICRONICS
RF PORTABLE ANECHOIC CHAMBER
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Eckel Industries Inc.
Anechoic Chambers
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IAC Acoustics UK Ltd
Anechoic Chambers
Distributor Overview
IAC Acoustics UK Ltd., established in 1949 and headquartered in Chandler's Ford, England, operates as a supplier specializing in engineered noise and acoustic control solutions. The company offers a range of products, including powertrain anechoic chambers, hearing screening booths, standard acoustic booths, industrial acoustic barriers, and industrial absorption panels. These solutions are applied across various sectors, such as aerospace, commercial construction, healthcare, industrial engineering, and transport. The company collaborates with partners including Welan Technologies, IAC Ltd., Panda Medical Limited, Amplivox, and MARVINACUSTICA.
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Anechoic Chamber Manufacturer Ranking
*Including some distributors, etc.Ranking as of May 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Frankonia Germany EMC Solutions GmbH |
50.0%
|
| 2 | Castle Microwave Limited |
25.0%
|
| 3 | IAC Acoustics |
25.0%
|
Derivation Method
The ranking is calculated based on the click share within the anechoic chamber page as of May 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- KAPOLNEK ACOUSTICS INDIA: 20
Newly Established Company
- Labifix Innovations Pvt Ltd.: 2020 (4 years ago)
- KAPOLNEK ACOUSTICS INDIA: 2012 (12 years ago)
- Shiv Power Corporation: 1997 (27 years ago)
Company with a History
- IAC Acoustics UK Ltd: 1949 (75 years ago)
- Eckel Industries Inc.: 1952 (72 years ago)
- Holland Shielding Systems BV: 1985 (39 years ago)
Anechoic Chamber Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Anechoic Chamber Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
India
|
6 | 42.9% |
United States of America
|
4 | 28.6% |
United Kingdom
|
2 | 14.3% |
Netherlands
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1 | 7.1% |
Germany
|
1 | 7.1% |
List of Anechoic Chamber Products
1 product is listed.
Satake Martimics Co., Ltd.
Subitled rooms, soundproof rooms, actual hearing rooms
10+ people viewing
By attaching sound absorbing machines and sound absorbing materials to the indoor walls, the sound reflection of the sound is reduced, and the envi...
