AhoPolar: Phase based polarity detector
Described in
Saratxaga, I., Erro, D., Hernáez, I., Sainz, I., Navas, E. Use of Harmonic Phase Information for Polarity Detection in Speech Signals.
Proc. Interspeech, pp. 1075-1078, 2009. ISSN 1990-9772. PDF
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