Adaptive Wiener filter based on STFT

Adaptive Wiener filter estimation based on STFT method for signal separation or denoising in case of non-stationary signals.

This function provides an implementation of a time-varying Wiener filter. This kind of Wiener filter can deal with non-stationary signals.
Given a noisy signal and a reference signal, the Wiener filter can be applied to the noisy signal for estimating the contribution coherent with the reference signal.