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- Noise reduction laboratory engineering
- 2018-06-27
- Basic concepts of an anechoic room (or a semi anechoic room) Anechoic room (or semi anechoic room) is a very important experimental place for acoustic experiment and noise testing. It is not only a special laboratory of acoustic testing, but also an important part of the test system. In fact, it is also one of the acoustic testing equipment. The acoustic performance index directly affects the accuracy of the test. The anechoic chamber (or semi anechoic chamber) is use
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