Wavelets in a problem of signal processing
作者： Wendel Cleber Soares , Marco Aparecido , Vieira Filho , Queiroz Duarte , Francisco Villarreal
DOI:
关键词: Mathematics 、 Digital signal processing 、 Speech processing 、 Noise (signal processing) 、 Wavelet 、 PESQ 、 Speech recognition 、 White noise 、 Noise reduction 、 Signal-to-noise ratio
摘要: In this work a new method is proposed for noise reduction in speech signals the wavelet domain. The signal processing makes use of transfer function, obtained as polynomial combination three processings, denominated operators. has objective overcoming deficiencies thresholding methods and effective corrupted by real noises. Using method, two are processed, contaminated white colored To verify quality processed signals, evaluation measures used: to ratio (SNR) perceptual (PESQ).
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