Authors : I.V.S. Ramakrishnan
Abstract: This study presents a novel audio denoising scheme in a given speech signal. The recovery of original from the communication channel without any noise is a difficult task. Many denoising techniques have been proposed for the removal of noises from a digital signal. In this study, an audio denoising technique based on Discrete Wavelet Transform (DWT) is proposed. The proposed architecture uses a novel approach to estimate environmental noise from speech adaptively. Here original speech signals are given as input signal. Using AWGN, noises are added to the signal. Then noised signals are denoised using DWT techniques. Finally Signal to Noise Ratio (SNR), Peak Signal to Noise Ratio (PSNR) values for noised and denoised signals are obtained.
I.V.S. Ramakrishnan , 2018. Marine Signal Denoising Based on Discrete Wavelet Transform. Journal of Engineering and Applied Sciences, 13: 8108-8110.