Patent Document ID: 9812122
Application ID: 14863124

Base Claim:
1. A construction method for a speech recognition model, comprising the steps, executed by a computer system, of: acquiring alignment between speech of each of a plurality of speakers and a transcript of the speaker; automatically joining transcripts of the respective ones of the plurality of speakers along a time axis, creating a transcript of speech of mixed speakers obtained from synthesized speech of the speakers, and replacing predetermined transcribed portions of the plurality of speakers overlapping on the time axis with a unit which represents a simultaneous speech segment; and constructing at least one of an acoustic model and a language model which make up a speech recognition model, based on the transcript of the speech of the mixed speakers.

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Claim 9:
9. The construction method according to claim 1 , further comprising a step, executed by the computer, of forming a language model configured to contain a language unit which represents the simultaneous speech segment and make up the speech recognition model, assuming that simultaneous speech occurs according to a predetermined rule.