27. The apparatus of claim 15 , further comprising: means for estimating a vector of frequency spectral noise components from said first vector frequency spectral speech components; and means for determining a vector of enhanced speech amplitude spectral components by using said first vector of frequency spectral speech components and said vector of noise suppression coefficients, wherein said speech versus noise relationship calculator comprises means for determining said speech-versus-noise relationship based on said estimated vector of frequency spectral noise components and said vector of enhanced speech amplitude spectral components.
15. An apparatus for suppressing noise in a speech signal, comprising: a converter that converts the speech signal to a first vector of frequency spectral speech components and a second vector of frequency spectral speech components identical to said first vector of frequency spectral speech components; a noise suppression coefficient calculator that determines a vector of noise suppression coefficients based on said first vector frequency spectral speech components; a speech-versus-noise relationship calculator that determines a speech-versus-noise relationship based on said first vector frequency spectral speech components and said vector of noise suppression coefficients; a post-suppression coefficient calculator that determines a vector of post-suppression coefficients based on said speech-versus-noise relationship, said first vector frequency spectral speech components, and said vector of noise suppression coefficients determined by said noise suppression coefficient calculator; and a weighting circuit that weights said second vector of frequency spectral speech components by said vector of post-suppression coefficients.