Technical Column
Why Is Acoustic Testing Important for Home Appliances?
2025年5月26日
- HBK × SONORA Acoustic Measurement Solution Official Website
- Technical Column
- Why Is Acoustic Testing Important for Home Appliances?
Electroacoustic Measurement
Acoustic testing plays a critical role in improving product quality and enhancing the user experience in home appliances.
| 1. Evaluation of Noise Levels | Excessive noise from home appliances can be unpleasant for consumers and may even lead to questions about the product’s overall quality. For appliances where quiet operation is especially important—such as refrigerators, air conditioners, and washing machines—low noise levels often influence purchasing decisions. |
|---|---|
| 2. Compliance with Regulations and Standards | Quiet appliances project a high-quality, modern brand image. In highly competitive markets, low noise performance is a key differentiator. Acoustic testing ensures compliance with domestic and international standards. |
| 3. Brand Image and Market Competitiveness | Acoustic comfort contributes directly to consumer satisfaction. Products with quiet operation are perceived as more sophisticated, advanced, and reliable, boosting both brand image and market advantage. |
| 4. Verification of Durability and Performance | Acoustic testing can detect abnormal vibrations or mechanical wear within a product. Unusual noises may indicate underlying faults or performance degradation, making sound testing an essential part of quality control and preventive maintenance. |
| 5. Ensuring User Comfort | Home appliances are used in everyday environments. Unpleasant operating noise reduces comfort at home. Through acoustic testing, manufacturers can quantify the sound emitted and ensure the product offers a comfortable user experience. |
Applicable ISO Standards for Acoustic Testing of Home Appliances
Several ISO standards define methods for measuring and evaluating the acoustic performance of machines, devices, and test environments. Key standards relevant to home appliance testing include:
| Standard | Title | Summary |
|---|---|---|
| 1. ISO 3741 | Determination of sound power levels using precision reverberation and anechoic rooms | Defines high-precision methods using reverberation or anechoic rooms |
| 2. ISO 3744 | Engineering method for determining sound power levels | Measures sound power in real environments with moderate precision |
| 3. ISO 3745 | Precision methods using anechoic and semi-anechoic rooms | High-accuracy measurements for low-noise devices |
| 4. ISO 362-1 | Measurement of exterior noise of road vehicles | Automotive standard, but relevant for evaluating motor noise in appliances |
| 5. ISO 11201 | Measurement of sound pressure level at operator position | Measures the sound level heard by users under real-use conditions |
| 6. ISO 13325 | Test method for noise emitted by tires | Used in automotive but applicable to rotating parts in appliances |
| 7. ISO 26101-1 | Design and performance of acoustic test rooms | Provides guidelines for designing anechoic and semi-anechoic test environments |
| 8. ISO 8253-2 | Sound field measurement for audiometric tests | Can be applied to the acoustic evaluation of consumer products |
Solutions for Acoustic Testing
To carry out acoustic testing effectively, manufacturers require:
- Acoustic measurement and analysis instruments
- Anechoic chambers or sound-insulated test rooms
We offer complete, customized solutions based on these methods, from room design to equipment selection—tailored to your testing needs.
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Introduction of the Manufacturer
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Hottinger Bruel & Kjaer
HHBK is a merger of two companies: Brüel & Kjær of Denmark and HBM of Germany.
Brüel & Kjær is one of the world’s leading manufacturers of acoustic and vibration measurement instruments, known as a total measurement chain supplier.Learn more about HBK
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Sonora Technology Co., Ltd.
Sonora Technology is a leading Japanese manufacturer of industrial anechoic chambers and anechoic boxes.
From design and manufacturing to installation and acoustic performance assurance, Sonora provides fully integrated solutions to build complete acoustic measurement environments from the ground up.Learn more about Sonora
Contact / Request Brochure
For inquiries or consultations regarding the total solutions provided by HBK × Sonora, please feel free to contact us using the Contact button.
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