Optimizing parameters of speech signals condenser sensor by inner noise of the receiving channel

Noise characteristics of the receiving electroacoustic channel with an electret condenser sensor of speech signal have been considered in the paper. The technique for optimizing the converter' characteristics by inner electrical noise of the signal amplifier as well as the sensor's experim...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 516; no. 1; pp. 12040 - 12045
Main Authors Luchnikov, P A, Larioshina, I A, Luchnikov, A P, Sigov, A S, Katakhova, N V, Chernova, N I
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 26.04.2019
Subjects
Amplifiers
Capacitors
Channel noise
Converters
Electrical noise
Frequency response
Receiving
Sensors
Speech
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Summary:Noise characteristics of the receiving electroacoustic channel with an electret condenser sensor of speech signal have been considered in the paper. The technique for optimizing the converter' characteristics by inner electrical noise of the signal amplifier as well as the sensor's experimental amplitude-frequency response have been given. It has been found that in order to suppress noise generated by the amplifier it is advantageous to have a Q -factor within 2 4 and resonance frequency ω0 in the range of 0.7 0.85 ω2 in the condenser converter.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/516/1/012040