Patent ID: 8954332
Filing Date: 2015-02-10
Classification: G10L,H04L

Abstract:
1. A computer-implemented method for masking special data comprising: identifying speakers of a voice recording; separating the voice recording into strands corresponding to each of the speakers, wherein one strand is associated with one of the speakers and another strand is associated with a different speaker; applying to one of the strands, a prompt list comprising elements that prompt a speaker associated with the other strand to utter special information; identifying at least one of the elements of the prompt list in the one strand using automatic speech recognition; identifying via the automatic speech recognition a special information candidate in the other strand directly after a location in time where the element was found in the voice recording of the one strand; assigning a confidence score to the element located in the one strand and to the special information candidate in the other strand; combining the confidence scores and applying a threshold to the combined confidence scores; and rendering utterances corresponding with the special information candidate unintelligible on a special purpose digital recorder when the combined confidence scores satisfy the threshold.