منابع مشابه
Analysis of nonstandard noise dosimeter microphone positions.
This study was conducted as part of a project involving the evaluation of a new type of noise exposure monitoring paradigm. Laboratory tests were conducted to assess how "nonstandard" dosimeter microphones and microphone positions measured noise levels under different acoustical conditions (i.e., diffuse field and direct field). The data presented in this article reflect measurement differences...
متن کاملInfluence of a wearer's voice on noise dosimeter measurements.
In recent years, interest in personal noise exposure has expanded beyond a workplace safety measure to become an effective means of investigating physiological effects of the acoustic environment on an individual. This work investigates the effects of the wearer's voice as a possible dominant sound source on body-mounted noise dosimeters and develops methods to improve the application of dosime...
متن کاملA new approach to reducing alarm noise in speech
This paper presents a new single channel noise reduction method for suppressing periodic alarm noise in telephony speech. The presence of background alarm noise can significantly detract from the intelligibility of telephony speech received by emergency services, and in particular, by the fire brigade control rooms. The attraction of the proposed approach is that it targets the alarm noise with...
متن کاملA Precision Calibration Solid State Noise Source with smooth Spectrum
Abstract—A Solid state calibration noise source for precision radio astronomy receivers has been designed built and tested. The Noise source has flat output noise spectrum, stability in time and frequency (smooth response), very low power dissipation, excellent power match...all on a very compact package that can easily be integrated with a radio astronomy receiver. The noise source has an in...
متن کاملTraffic noise drowns out great tit alarm calls
Anthropogenic noise is one of the fastest growing and most ubiquitous types of environmental pollution and can impair acoustic communication in a variety of animals [1]. Recent research has shown that birds can adjust acoustic parameters of their sexual signals (songs) in noisy environments [2,3], yet we know little about other types of vocalizations. Anti-predator signals contain subtle inform...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1982
ISSN: 0001-4966
DOI: 10.1121/1.2019573