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Author by : Eldon McEntire
Languange Used : en
Release Date : 1934
Publisher by :
ISBN : OCLC:4425023
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Author by : Eldon McEntire
Languange Used : en
Release Date : 1934
Publisher by :
ISBN : OCLC:4425023
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Author by : Norman Bristol
Languange Used : en
Release Date : 1983
Publisher by :
ISBN : OCLC:11366506
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Author by :
Languange Used : en
Release Date : 1970
Publisher by :
ISBN : OCLC:227623245
Communications operators who must use receivers in a noisy audio environment without earphones are plagued by the effect of a varying background noise level. Often the operators are simultaneously performing other tasks thus can only monitor voice circuits. As the noise level varies the operator must repeatedly adjusts the volume control for a comfortable listening level. An analysis of the physical situation is presented. An automatic feedback control system that measures the predominate range of frequencies of the background noise and automatically adjust the volume control of a power amplifier for a satisfactory listening level is developed. This system relieves the operator of the task of manual volume control and reduces the effect of noise masking. (Author)....
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Author by : Andrew Ford Hobson
Languange Used : en
Release Date : 1970
Publisher by :
ISBN : OCLC:640090409
Communications operators who must use receivers in a noisy audio environment without earphones are plagued by the effect of a varying background noise level. Often the operators are simultaneously performing other tasks thus can only monitor voice circuits. As the noise level varies the operator must repeatedly adjusts the volume control for a comfortable listening level. An analysis of the physical situation is presented. An automatic feedback control system that measures the predominate range of frequencies of the background noise and automatically adjust the volume control of a power amplifier for a satisfactory listening level is developed. This system relieves the operator of the task of manual volume control and reduces the effect of noise masking. (Author)....
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Author by : Thomas S. Wonnell
Languange Used : en
Release Date : 1955
Publisher by :
ISBN : OSU:32435075190934
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Author by : Mark Frederick Medress
Languange Used : en
Release Date : 1968
Publisher by :
ISBN : OCLC:24873778
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Author by : United States. Department of the Air Force
Languange Used : en
Release Date : 1959
Publisher by :
ISBN : UOM:39015000482870
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Author by :
Languange Used : en
Release Date : 1959
Publisher by :
ISBN : UCAL:$C199536
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Author by : United States. Court of Customs and Patent Appeals
Languange Used : en
Release Date : 1970
Publisher by :
ISBN : UOM:39015057256979
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Author by : United States. Patent Office
Languange Used : en
Release Date : 1953
Publisher by :
ISBN : MSU:31293007077831
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