4 results about "Spectral distance" patented technology

The log-spectral distance (LSD), also referred to as log-spectral distortion, is a distance measure (expressed in dB) between two spectra. The log-spectral distance between spectra () and ^ is defined as: = ∫ − [⁡ ^ ()], where () and ^ are power spectra. Unlike the Itakura–Saito distance, the log-spectral distance is symmetric.. In speech coding log spectral distortion for a given ...