Patent Document ID: 9449617
Application ID: 15075786

Base Claim:
1. A system configured to identify lexical segments in speech, the computer system comprising: an input interface configured to receive an input of audio; an energy calculation module configured to calculate energy of the audio over first time intervals of the audio; a variance calculation module configured to calculate variance of the energy in the first time intervals of the audio over every second time interval within the first time intervals that slides as the energy calculation module calculates the energy of the audio at each of the first time intervals; a speech segmentation module configured determine for the audio over each of the second time intervals that the audio over each of the second time intervals contains speech based on the variance of the energy, and determine lexical segment boundaries of the speech within the audio based on each of the second time intervals of the audio that contains speech; and a speech segmentation refinement module configured to segment the speech within the lexical segment boundaries and output the segmented speech to an output device configured to output the speech according to kurtosis of the speech within the lexical segment boundaries.

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Claim 2:
2. The system of claim 1 , wherein the kurtosis of the speech is a measure of peakedness of a probability distribution of the speech.