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Keywords: microphones
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Journal Articles
Publisher: ASME
Article Type: In Memoriam
J. Vib. Acoust. December 2011, 133(6): 060101.
Published Online: December 8, 2011
...Gary Koopmann; Ulf Michel 06 09 2011 22 11 2011 08 12 2011 08 12 2011 acoustic intensity measurement acoustic noise aeroacoustics fans microphones pipe flow turbomachinery vibrations Wolfgang Neise, renowned for his life-long contributions to advancing...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 2011, 133(5): 051001.
Published Online: July 26, 2011
... to reducing noise emissions, the pressure fluctuations of the exhaust flow in the near field are correlated with the noise measured in the far field in an anechoic chamber. By varying the far-field microphone’s azimuthal position, the study investigates the source signatures and directivity of noise sources...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. December 2010, 132(6): 061011.
Published Online: October 8, 2010
... control system in which secondary acoustic sources (loudspeakers) and pressure transducers (microphones) as error sensors are used, several optimization strategies have been proposed. These strategies usually rely on partial approximation to the problem, focusing on the study of number and localization...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. April 2006, 128(2): 148–155.
Published Online: July 16, 2005
... exceptions: (1) Acoustic transducers (microphone and speaker) cannot be truly collocated, and (2) the acoustic actuator (loudspeaker) has significant dynamics. The speaker dynamics can affect performance and stability and must be compensated. While acoustic modal control approaches are typically not sought...