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

3rd International Conference "Cognitive Robotics"

计算机科学

Luchnikov, P.A.^1 ; Larioshina, I.A.^2 ; Luchnikov, A.P.^1 ; Sigov, A.S.^1 ; Katakhova, N.V.^1 ; Chernova, N.I.^1

Russian Technological University, Moscow, Russia^1

TUSUR, Tomsk, Russia^2

关键词: Amplitude frequency response;    Electrical noise;    Electroacoustic channels;    Noise characteristic;    Optimizing parameters;    Resonance frequencies;    Signal amplifiers;    Speech signals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/516/1/012040/pdf
DOI  :  10.1088/1757-899X/516/1/012040

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

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 ω 0 in the range of 0.7 0.85 ω 2 in the condenser converter.