A two tap high performance adaptive filter for speech denoising

摘要

A two tap high performance adaptive filter for speech denoising, said filter comprising: noisy speech parameter identification mechanism configured to determine parameters of at least a noisy speech signal; reference noise determination mechanism configured to determine reference noise parameters; ratio computation mechanism configured to compute ratio of pre-determined paramaters of said noisy speech signal to said reference noise signal; and control mechanism configured to control step size of said filter in response to instantaneously said computed ratio of pre-determined parameters.