Transformed wavelet applied in voice signals for noise reduction
International Journal of Development Research
Transformed wavelet applied in voice signals for noise reduction
Received 11th March, 2022; Received in revised form 18th April, 2022; Accepted 07th May, 2022; Published online 28th June, 2022
Copyright © 2022, Leandro Aureliano da Silva et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This study presents a technique for noise reduction in speech signals adapting the wavelet transform by comparing it with the power spectral subtraction. To validate the results, segmented signal noise and Itakura Saito distance relationship were used. After analyzing the obtained results, we have verified that the technique based on Wavelet transform showed lower spectral distortion and, in some cases, a better signal to noise ratio.
