منابع مشابه
Subband Beamforming of Miniature Microphone Arrays for Audio Applications*
Microphone array processing techniques have generated a tremendous interest in both theoretical and applied areas, especially, over the past decade. So long as an array performs a type of spatial filtering, the dimension of array will determine the acceptable frequency-range of the incoming waves. Consequently, it is well known that, miniature microphone arrays are not appropriate for audio app...
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A highly innovative miniature silicon comb to sense differential microphone diaphragm has been developed that is highly stable when subjected to various bias voltages [1]. The bio-inspired microphone diaphragm consists of a 1 mm by 2 mm stiffener-reinforced plate fabricated out of phosphorous-doped polysilicon that is supported on a central hinge [2,3,4]. Interdigitated comb fingers are formed ...
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(6) If we now assign T0 to be the undisturbed air temperature of the surroundings, p as the small perturbation in pressure due to an acoustic wave and P0 as the ambient pressure we can derive the change in temperature occurring with a passing acoustic wave. ∆T is very small and is approximately ±0.23C with a very high sound level of 140 dB(SPL), ambient temperature of 20C, and an ambient pressu...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1971
ISSN: 0001-4966
DOI: 10.1121/1.1977773