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Optical Microphone's Breakthrough

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This paper discusses the known principles of building an optical microphone transducer. It also describes bubble-sized measurements and Phone-Or's light transducer principle, its specifics and distance resolution. The paper discusses the optical microphone's specifications including the basics and characteristics; diaphragm specifics and its acoustical characteristics; noise, sensitivity, dynamic range, frequency and directional characteristics; and response to humidity, EMI, and RFI. A -smart- optical microphone and the optical microphone's prospects are also presented.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=8191

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