{"id":840,"date":"2025-05-30T17:40:57","date_gmt":"2025-05-30T08:40:57","guid":{"rendered":"https:\/\/acoustic-measurement.com\/?page_id=840"},"modified":"2025-06-03T19:51:25","modified_gmt":"2025-06-03T10:51:25","slug":"aeb","status":"publish","type":"page","link":"https:\/\/acoustic-measurement.com\/en\/solution\/aeb\/","title":{"rendered":"Simplified Performance Measurement Using an Anechoic Box and a Sound Level Meter"},"content":{"rendered":"\n

An anechoic box is suitable for acoustic measurements of small components and products. The test object (sound source) is placed inside the box, and sound is received by a microphone. The microphone is connected via a cable to an external sound level meter, which is used to perform the measurement.<\/p>\n\n\n\n

Sonora\u2019s anechoic boxes offer excellent sound insulation performance. With a proven internal background noise level of just 3.5 dB(A), they are highly compatible with HBK\u2019s precision microphones and analyzers.<\/p>\n\n\n\n

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\u3010Examples of Target Sound Sources\u3011
Automotive components, electrical devices, and various drive system parts\/products (e.g., transmissions, gears, motors, fans, air conditioners, etc.)<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Acoustic Measurement Instruments<\/h2>\n\n\n\n
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Sound Level Meter \u2013 B&K 2245<\/h3>\n\n\n\n

A high-precision sound level meter.
Measurement Range: A-weighted 16 dB to 141 dB
Complies with IEC 61672 Class 1.
Supports 1\/3-octave band analysis and logging options.<\/p>\n<\/div>\n\n\n\n

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Handheld Analyzer \u2013 Type 2270<\/h3>\n\n\n\n

A high-precision measurement and analysis instrument.
Expandable with dedicated applications for building acoustics, FFT analysis, tone evaluation, noise and vibration measurements.
Equipped with 1\/3-octave band analysis.
Compliant with IEC 61672 (JIS C 1509) Class 1.<\/p>\n<\/div>\n\n\n\n

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Low-noise Microphone \u2013 Type 4955-A<\/h3>\n\n\n\n

A microphone designed for measuring extremely low sound levels, even below the noise floor of standard 1-inch and 1\/2-inch microphones.
Compatible with Type 2270 analyzer and capable of measurements starting from 6.5 dB.<\/p>\n<\/div>\n<\/div>\n\n\n\n

\u00d7<\/strong><\/p>\n\n\n

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Anechoic Box<\/figcaption><\/figure>\n<\/div>\n\n\n

Specifications Table<\/h2>\n\n\n\n

Acoustic Measurement Box<\/h3>\n\n\n\n
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Examples of Anechoic Box Customizations<\/h2>\n\n\n\n
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\u30fbSliding Table
\u30fbDownlight with Switch<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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\u30fbMicrophone Clamp
\u30fbDownlight with Switch<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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\u30fbPneumatic Automatic Lifting Door
\u30fbCustom Measurement Jig<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

Features<\/h2>\n\n\n\n
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Top Brands<\/h3>\n\n\n\n

We offer high-end solutions from two leading companies in the field of acoustic measurement instruments and acoustic testing environments: HBK and Sonora.<\/p>\n<\/div>\n\n\n\n

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Total Solutions<\/h3>\n\n\n\n

With our proven expertise and extensive track record, we provide comprehensive solutions to address every challenge in acoustic measurement.<\/p>\n<\/div>\n\n\n\n

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Complete Package<\/h3>\n\n\n\n

Moritani does more than just sell products \u2014 we provide full support from initial implementation to after-sales service, ensuring a seamless and reliable experience.<\/p>\n<\/div>\n<\/div>\n\n\n \t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\n

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Simplified Performance Measurement Using an Anechoic Box and a Sound Level Meter Case Studies<\/h2>\n\t\t\t\t\t\t\t\t\n \t\t\t\t\t\t\t\t
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2025\/05\/23<\/p>\n\n \n\n\n

Sound Power Level by Sound Intensity Method<\/h2>\n

\n\nMeasurement Target: Air Conditioner\n\n\n\nMeasurement Details: Acoustic power measurement in a semi-a...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/05\/23<\/p>\n\n \n\n\n

Sound Power Level by Sound Pressure Method (Free Field)\u00a0 \u2461<\/h2>\n

\n\nMeasurement Target: Office Equipment\n\n\n\nMeasurement Details: Acoustic power measurement using low-...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/05\/23<\/p>\n\n \n\n\n

Sound Power Level by Sound Pressure Method (Free Field) \u2460<\/h2>\n

\n\nMeasurement Target: Office Equipment\n\n\n\nMeasurement Details: Acoustic power measurement in a semi-...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n\n<\/div>\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t

Simplified Performance Measurement Using an Anechoic Box and a Sound Level Meter Technical Columns<\/h2>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
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2025\/12\/11<\/p>\n\n \n\n\n

The Geometry of Acoustic Design \u2014 How Chamber Shape Defines Sound Field Performance<\/h2>\n

\nIntroduction\n\n\n\nThe performance of an anechoic chamber is not determined only by absorption materia...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/11\/30<\/p>\n\n \n\n\n

Modular Semi-Anechoic Chambers \u2014 A Flexible Solution for Deployable Acoustic Testing \u2014<\/h2>\n

\nIntroduction\n\n\n\nTraditional anechoic chambers were fixed installations\u2014once built, they could not b...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/11\/25<\/p>\n\n \n\n\n

Measuring Silence: How Anechoic Chambers Support Industrial Quality<\/h2>\n

\nIntroduction\n\n\n\nQuietness can\u2019t be claimed\u2014it must be measured.In modern industry, acoustic perform...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/11\/18<\/p>\n\n \n\n\n

Designing for Reproducibility \u2014 Environmental Stabilization in Acoustic Measurement \u2014<\/h2>\n

\nIntroduction\n\n\n\nPrecision in acoustic testing depends not only on instruments, but on the stability...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/11\/07<\/p>\n\n \n\n\n

The Design Logic Behind the Inverse Square Law Zone in Anechoic Chambers<\/h2>\n

\nIntroduction\n\n\n\nWhen measuring sound pressure levels in an anechoic chamber, the most fundamental a...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/10\/25<\/p>\n\n \n\n\n

Integrated Acoustic and Vibration Analysis \u2014 Designing the Data Flow That Connects Measurement and Insight\u2014<\/h2>\n

\nIntroduction\n\n\n\nModern acoustic and vibration testing generates massive amounts of data thanks to h...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/10\/14<\/p>\n\n \n\n\n

Designing the Future of Silence \u2014 The Fusion of Digital Acoustic Measurement and Spatial Engineering \u2014<\/h2>\n

\nIntroduction\n\n\n\nFor decades, silence was built through materials and geometry.Now, it is designed t...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/08\/26<\/p>\n\n \n\n\n

Why Measurement Rooms and Measurement Instruments Must Be Designed Together \u2014 Managing Environmental Noise and Instrument Precision as a Unified System \u2014<\/h2>\n

\nIntroduction: Hidden Factors That Distort Precision Measurements\n\n\n\nIn acoustic, vibration, and NVH...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/08\/21<\/p>\n\n \n\n\n

Automated Sound Pressure Scanning for ISO 26101 Validation \u2014 Free-Field Compliance Using HBK + Traversing System in Sonora Anechoic Chambers \u2014<\/h2>\n

\nIntroduction: What is the Inverse Square Law in Acoustic Power Testing?\n\n\n\nIn ISO 3744 and ISO 2610...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/08\/06<\/p>\n\n \n\n\n

Precision Sound Power Measurements with ISO 3744 \u00d7 HBK PULSE \u2014 Reliable Inverse Square Validation with SPAC and Certified Instruments \u2014<\/h2>\n

\nIntroduction: Measurement Accuracy Depends on Both Room and Instrument\n\n\n\nSound power level (Lw) me...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/07\/16<\/p>\n\n \n\n\n

The Logic Behind the Shape and Size of Anechoic Chambers<\/h2>\n

\nHBK \u00d7 Sonora Delivering the Ideal Acoustic Test Environment\n\n\n\nAnechoic chambers are artificial env...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n

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2025\/07\/09<\/p>\n\n \n\n\n

Why Build Your Own Acoustic Test Facility? SONORA \u00d7 HBK: Designing Acoustic Spaces That Accelerate Innovation<\/h2>\n

\nBeyond Measurement: Acoustic Labs That Accelerate Development\n\n\n\nAcoustic performance is becoming i...<\/p>\n \n <\/div>\n <\/a>\n <\/div>\n \n\n<\/div>\t\t\t\t\t\t\t <\/div>\n\t\t\t\t\t\t\n\n\n\n

Download Brochure<\/h2>\n\n\n\n

Click here<\/a> to download brochure.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

An anechoic box is suitable for acoustic measurements of small components and products. The test object (sound source) is placed inside the box, and sound is received by a microphone. The microphone is connected via a cable to an external sound level meter, which is used to perform the measurement. Sonora\u2019s anechoic boxes offer excellent […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":758,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/acoustic-measurement.com\/?page_id=111","footnotes":""},"class_list":["post-840","page","type-page","status-publish","hentry","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/pages\/840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/comments?post=840"}],"version-history":[{"count":8,"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/pages\/840\/revisions"}],"predecessor-version":[{"id":855,"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/pages\/840\/revisions\/855"}],"up":[{"embeddable":true,"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/pages\/758"}],"wp:attachment":[{"href":"https:\/\/acoustic-measurement.com\/wp-json\/wp\/v2\/media?parent=840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}