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This section provides an overview for acoustic anechoic chamber as well as their applications and principles. Also, please take a look at the list of 4 acoustic anechoic chamber manufacturers and their company rankings. Here are the top-ranked acoustic anechoic chamber companies as of April, 2025: 1.Sonora Technology Co., Ltd., 2.IAC Acoustics, 3.Eckel Industries Inc..
Table of Contents
Anechoic chamber is a room designed to block out external sound waves (soundproofing) and prevent sound from reflecting within the room (sound absorption). It is used for measuring noise from automotive parts, household appliances, and other sources with noise meters and analyzers.
- ISO3741: Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms
- ISO3744: Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
- ISO3745: Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms
- ISO362-1, 2, 3: Acoustics - Engineering method for measurement of noise emitted by accelerating road vehicles…
- ISO13325: Tyres - Coast-by methods for measurement of tyre-to-road sound emission
- ISO26101-1: Acoustics - Test methods for the qualification of the acoustic environment
- ISO11201: Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a workstation and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections
- etc…
[Anechoic chambers used for each purpose]
1 Anechoic chambers for acoustical measurements
2 Anechoic chambers for electromagnetic compatibility (EMC), electromagnetic interference (EMI) and RF testing
[Differences in each shape and DUT (device under test)]
1 Fully anechoic chamber: sound absorption layer on six faces (floor, walls and ceiling) often used to measure consumer electronics and compact driving components.
2 Semi-anechoic chamber: sound absorption layer on 5 faces (walls and ceiling) often used to measure DUT to be placed on the ground such as automobile
Depending on the measurement purpose, anechoic chambers may be referred as followings:
- VSAC: Vehicle Semi-Anechoic Chambers
- EAAC: Electroacoustic Anechoic Chambers
- SPAC: Sound Power Anechoic Chambers
*Including some distributors, etc.
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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.
Ranking as of April 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Sonora Technology Co., Ltd. |
40.9%
|
| 2 | IAC Acoustics |
30.0%
|
| 3 | Eckel Industries Inc. |
16.4%
|
| 4 | FAIST ANLAGENBAU GMBH. |
12.7%
|
Derivation Method
The ranking is calculated based on the click share within the acoustic anechoic chamber page as of April 2025. 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
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
1 | 33.3% |
|
Germany
|
1 | 33.3% |
|
Japan
|
1 | 33.3% |
103 products found
103 products
Shield Room Co., Ltd.
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The SAD type shielded room is a high-performance shielded room that can be manufactured with a sealed panel that allows you to select the desired f...
Shield Room Co., Ltd.
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The SA type shielded room is a shielded room that can be manufactured with a sealed panel that allows you to select the desired frequency band and ...
Shield Room Co., Ltd.
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The SAN type shield room is a panel-type shield room that uses expandable nets on the ceiling and the upper half of the walls. Since the expanded n...
Shield Room Co., Ltd.
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The AN-100 type shield room is the lightest panel type simple shield room using SUS mesh. The SUS mesh part has excellent breathability and transpa...
Shield Room Co., Ltd.
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This is a simple radio anechoic chamber that prevents radio wave reflection within the shield room by uniformly pasting radio wave absorbers (ferri...
SHIELD TECH INDUSTRY LIMITED.
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This is a test machine that can be assembled by the customer. Of course, we can also deliver the product after assembly. (Separate assembly fee wil...
SHIELD TECH INDUSTRY LIMITED.
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Easy to assemble by yourself. We can also assemble and deliver it to you. (Separate assembly fee will be charged.) We can introduce various variat...
Yagyu Shokai Co., Ltd.
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■Features ・High visibility and access inside the box is achieved with 3 transparent doors. ・Can be stacked. - Adopts a magnetic door latch.
Wave Crest
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■ Characteristics ・ The shield tent of the TBST series is designed to suppress the interference due to the surrounding noise when measuring the EM...
4 models listed
Wave Crest
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■ FMC ・ EMC test monitoring cameras include EUT monitoring, indoor safety and situation during various EMC tests performed in electromagnetic bloc...
Shizuka Co., Ltd.
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This is an acoustic measurement box for small-sized measurements of home appliances, communication equipment, drive parts, etc. The six sides of th...
Keihin Enclosing Co., Ltd.
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■Anechoic chamber/semi-anechoic chamber - A space with no surrounding reflections is called a free sound field, and a space where only the floor is...
Shizuka Co., Ltd.
130+ people viewing
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This is a unit-type anechoic chamber made possible by our unique sound insulation and sound absorption technology, with sound-absorbing wedges inst...
Shizuka Co., Ltd.
130+ people viewing
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This is a unit-type anechoic chamber made possible by our unique sound insulation and sound absorption technology, with sound-absorbing wedges inst...
Shizuka Co., Ltd.
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This is a soundproof inspection room for acoustic measurements. It is positioned as a simple anechoic chamber. Although the sound insulation and so...
Shizuka Co., Ltd.
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This is an anechoic box that uses sound-absorbing wedges on the inner wall. You can perform more advanced measurements than an anechoic box. The so...
TS S Japan Co., Ltd.
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■Strong point ・High-performance solution that supports measurement distances of 3.0m and 5.0m and QZ up to Φ4.0m ・Large turntable or mobile dynam...
TS S Japan Co., Ltd.
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■Strong point ・Reduction of reflection inside electromagnetic wave shield tent ・Wide range of radio wave absorbers (pyramid type, flat plate type...
TS S Japan Co., Ltd.
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■Strong point - Highly customizable solution for all types of EMC testing ・Fully compliant with EMI/EMS ・Excellent performance with Frankonia's o...
TS S Japan Co., Ltd.
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■Strong point ・Achieves high shielding performance compatible with wideband (20 MHz to 40 GHz) - Adopts a magnetic type door that is easy to open ...
TS S Japan Co., Ltd.
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■TSSJ original ST series This is an electromagnetic shielding tent that supports 1MHz to 6GHz. This is a very durable radio wave shielding tent tha...
TS S Japan Co., Ltd.
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■Strong point - Highly customizable solution for all types of EMC testing ・Fully compliant with EMI/EMS ・Excellent performance with Frankonia's o...
TS S Japan Co., Ltd.
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■TSSJ original ST series This is an electromagnetic shielding tent that supports 1MHz to 6GHz. This is a very durable radio wave shielding tent tha...
TS S Japan Co., Ltd.
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■Strong point ・Fully compliant with EMI/EMS ・Polygonal design saves space and is compact ・Excellent performance with Frankonia's original Franko...
TS S Japan Co., Ltd.
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This is a simple anechoic chamber with a radio wave absorber placed inside a room-sized electromagnetic shielding tent. A 5-sided anechoic chamber ...
TS S Japan Co., Ltd.
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■Strong point ・Can be converted from SAC (5-sided anechoic chamber) to FAC (6-sided anechoic chamber) test site ・Cost-effective, high-performance...
TS S Japan Co., Ltd.
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■Strong point ・CISPR16-1-4 EMI pre-measurement ・EMS measurement fully compliant with IEC/EN 61000-4-3 A cost-effective solution for EMS measureme...
TS S Japan Co., Ltd.
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■Strong point ・Compact chamber solution for automotive components ・Alternative solution for GTEM cells ・Turnkey solution ■Product information T...
TS S Japan Co., Ltd.
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■Strong point ・Table top EUT test site ・Fully compliant with EMI/EMS ・Cost-effective solution for free space measurements ・Excellent performanc...
TS S Japan Co., Ltd.
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■Strong point ・Solutions for auto parts, vehicles, and commercial testing ・Fully compliant with EMI/EMS - Compatible with either mobile or fixed ...
