Restoration of Environmental Noise Corrupted Speech Using Wavelet Transform
Hirofumi Yogo, Tadashi Kitamura, Naoki Inagaki · Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications · 2000
Three methods are used for restoring environmental noise-corrupted speeches. The methods use a conventional Wavelet Transform, a Wavelet Packet Transform, and low-pass filters based on moving-average. The prominent result is obtained by using a conventional Wavelet Transform. In this paper, we proposed a new method of optimum decomposition of the speech using the Wavelet Transform.