2005•Journal of China Institute of CommunicationsRequires access
Improved SHR pitch detection algorithm with high accuracy
Xiaohui Zhao
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Abstract
An improving sub-harmonic to harmonic ratio(ISHR)algorithm based on sub-harmonic to harmonic ratio(SHR)and using the voiced speech harmonic and sub-harmonic in the speech sinusoidal model algorithm was proposed.According to the characteristics of amplitude and frequency modulation in speech analysis,amplitude and autocorrelation ratio in frequency domain,this algorithm through the mean square error obtained from the sinusoidal model could detect accurate pitch.Simulation results indicate that the proposed algorithm possesses high accuracy and reliability in speech pitch detection.