CULP
发表于 2025-3-25 04:25:19
Lecture Notes in Computer Sciences sensation is produced in response to the pressure fluctuation-induced vibration of the ear drum. The fluctuations in the surrounding air constitute a sound field. The pressure fluctuations themselves are usually referred to as sound pressure or acoustic pressure.
arthroplasty
发表于 2025-3-25 09:50:33
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Iniquitous
发表于 2025-3-25 12:14:28
https://doi.org/10.1007/3-540-60641-6radiation is simply the generation of sound waves by a source. Acoustic radiation is a term commonly used amongst noise control practitioners. The term “free space,” or “free field,” refers to the environment in which the sound source is operating. Free space means that there is nothing to reflect t
THROB
发表于 2025-3-25 17:54:15
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Kidney-Failure
发表于 2025-3-25 22:07:55
Object Detection and Categorization,s enclosures where one dimension is very long, often terminating into open space. Common examples of a duct include the airways used in central heating and cooling systems, and any piping system (including vehicle exhaust systems). Another example of a duct which may not be so obvious is a long hall
intangibility
发表于 2025-3-26 00:40:19
https://doi.org/10.1007/978-0-387-78881-4f the amplitude of the second sound field is the same as the first, but the phase inverted, then the two will cancel. The end result is quiet. As we have discussed in the preceding chapters, the potential for active control to provide a satisfactory result is largely a function of the physical acous
nocturnal
发表于 2025-3-26 07:44:48
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雪崩
发表于 2025-3-26 10:15:35
Active Noise Control Primer978-1-4419-8560-6Series ISSN 2364-4915 Series E-ISSN 2364-4923
改正
发表于 2025-3-26 13:08:23
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离开
发表于 2025-3-26 20:46:42
Lecture Notes in Computer Sciences sensation is produced in response to the pressure fluctuation-induced vibration of the ear drum. The fluctuations in the surrounding air constitute a sound field. The pressure fluctuations themselves are usually referred to as sound pressure or acoustic pressure.