- Pitch, combined with intonation (the rise and fall of the voice in speaking), are important factors in classifying male versus female.
- Male classified voices tend to be low and within a narrow range of pitch (ie., relatively monotone).
- Female classified voices tend to be higher in pitch and fluctuate frequency to a much greater degree.
- Female classified voices often rise in frequency at the end of a sentence, as if asking a question.
This application uses a method of artificial intelligence, called machine learning, to determine the gender of a voice.
The program was trained on a dataset of 3,168 voice samples, split between male and female voices. By analyzing the acoustic properties of the voices, the program is able to achieve 89% accuracy on the test set.
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7/28/2016 Updated 10/8/2017