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http://dx.doi.org/10.7840/kics.2015.40.5.924

A Gain Control Algorithm of Low Computational Complexity based on Voice Activity Detection  

Kim, Sang-Kuyn (Inha University Division of Electronic Engineering)
Cho, Woo-Hyeong (Inha University Division of Electronic Engineering)
Jeong, Min-A (Mokpo National University Department of Computer Engineering)
Kwon, Jang-Woo (Inha University Division of Computer Engneering and Information)
Lee, Sangmin (Inha University Division of Electronic Engineering)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.40, no.5, 2015 , pp. 924-930 More about this Journal
Abstract
In this paper, we propose a novel approach of low computational complexity to improve the speech quality of the small acoustic equipment in noisy environment. The conventional gain control algorithm suppresses the noise of input signal, and then the part of wide dynamic range compression (WDRC) amplifies the undesired signal. The proposed algorithm controls the gain of hearing aids according to speech present probability by using the output of a voice activity detection (VAD). The performance of the proposed scheme is evaluated under various noise conditions by using objective measurement and yields superior results compared with the conventional algorithm.
Keywords
Low Computational Complexity; Noise Suppression; Gain Control; Voice Activity Detection;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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