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Noise Suppression Method for Restoring Line Spectrum Pair  

Choi, Jae-Seung (Department of Electronics Engineering, Silla University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.47, no.4, 2010 , pp. 112-118 More about this Journal
Abstract
This paper describes a noise suppression system based on a normalization method using a time-delay neural network and line spectrum pair having a parameter of frequency domain. First, a time-delay neural network is trained using line spectrum pair values of noisy speech signals obtained by linear prediction analysis. After trained the time-delay neural network, the proposed system enhances speech signals that are degraded by a background noise. Accordingly, the proposed time-delay neural network restores from the line spectrum pair values of noisy speech signals to the line spectrum pair values of clean speech signals. It is confirmed that this system is effective for speech signals degraded by a background noise, judging from spectral distortion measurement.
Keywords
Time-delay neural network; line spectrum; normalization method; spectral distortion measurement;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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