Patent Document ID: 8831942
Application ID: 12728151

Base Claim:
1. A method for identifying a gender of a speaker, comprising: obtaining speech data of the speaker; extracting, using a processor of a computer, a plurality of vowel-like speech frames from the speech data; analyzing, using the processor, the plurality of vowel-like speech frames to generate a feature vector comprising a plurality of pitch values of the speaker, wherein each of the plurality of pitch values corresponds to one of the plurality of vowel-like frames; analyzing, using the processor, the plurality of pitch values to generate a most frequent pitch value; determining a first pre-determined threshold and a second pre-determined threshold based on an overlapping portion of a male pitch value training set and a female pitch value training set; configuring a male Gaussian Mixture Model (GMM) and a female GMM by using the male pitch value training set and the female pitch value training set, respectively, to train a suspicious speaker model for modeling male and female speaker pitch value distributions; determining, using the processor and in response to the most frequent pitch value being between the first pre-determined threshold and the second pre-determined threshold, an output of the male GMM and an output of the female GMM using the pitch value distributions of the suspicious speaker model as inputs to the male GMM and the female GMM; and identifying the gender of the speaker by comparing the output of the male GMM and the output of the female GMM based on a pre-determined criterion.

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Claim 6:
6. The method of claim 1 , further comprising: obtaining male training speech data of a plurality of male speakers and female training speech data of a plurality of female speakers during a training phase; determining a plurality of male pitch values based on the male training speech data and a plurality of female pitch values based on the female training speech data; determining the first pre-determined threshold based on the plurality of female pitch values; and determining the second pre-determined threshold based on the plurality of male pitch values.