Searched refs:signal_variance (Results 1 – 1 of 1) sorted by relevance
43 float signal_variance = 0.f; in ComputeSpectralDiff() local49 signal_variance += signal_diff * signal_diff; in ComputeSpectralDiff()53 signal_variance *= kOneByFftSizeBy2Plus1; in ComputeSpectralDiff()57 signal_variance - (covariance * covariance) / (noise_variance + 0.0001f); in ComputeSpectralDiff()