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Spectral Degradation of Speech Captured by Miniature Microphones Mounted on Persons' Heads and Chests

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This paper presents the results of a test carried out on 10 subjects, each with miniature microphones mounted in different positions on his head and chest. With reference of the on-axis speech spectra, the degradation caused by the microphone placement is examined. Also the changes to the spectrum of a nearby source (artificial mouth) registered by the head and chest worn microphones are examined.

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