Patent Document ID: 9875739
Application ID: 15158959

Base Claim:
1. A method of producing a diarized transcript from a digital audio file, the method comprising: obtaining a digital audio file; splitting the digital audio file into a plurality of frames; segmenting the digital audio file into entropy segments based upon an entropy of each frame; performing a blind diarization to identify a first speaker audio file and a second speaker audio file by clustering the entropy segments into the first speaker audio file and the second speaker audio file, wherein the first speaker audio file only contains audio attributed to the first speaker and the second speaker audio file only contains audio attributed to the second speaker; and identifying one of the first speaker audio file and second speaker audio file as an agent audio file and another of the first speaker audio file and the second speaker audio file as a customer audio file; and transcribing the agent audio file and the customer audio file to produce a diarized transcript.

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Claim 3:
3. The method of claim 1 , further comprising after the splitting of the digital audio file into a plurality of frames: calculating an overall energy speech probability for each frame; calculating a band energy speech probability for each frame; calculating a spectral peakiness speech probability for each frame; calculating a residual energy speech probability for each frame; computing an activity probability for each frame from the overall energy speech probability, band energy speech probability, spectral peakiness speech probability, and residual energy speech probability; comparing a moving average of activity probabilities to at least one threshold; and identifying speech and non-speech segments in the digital audio file based upon the comparison.