Adaptive filtering for speech enhancement in colored noise
Ki Yong Lee, Byung-Gook Lee, Souguil Ann · IEEE Signal Processing Letters · 1997
We consider an adaptive filtering algorithm for speech parameter estimation and enhancement when the observation noise is colored with no a priori information. The resulting algorithm consists of adaptive filtering procedures that recursively estimate and enhance the parameters of speech plus noise model, and results in /spl sim/3 dB improvement over Gaussian assumption on the excitation source.