Pitch determination and voice quality analysis using Subharmonic-to-Harmonic Ratio

This paper presents an improvement of a previously proposed pitch determination algorithm (PDA). Particularly aiming at handling alternate cycles in speech signal, the algorithm estimates pitch through spectrum shifting on logarithmic frequency scale and calculating the Subharmonic-to-Harmonic Ratio (SHR). The evaluation results on two databases show that this algorithm performs considerably better than other PDAs compared. Application of SHR to voice quality analysis task is also presented. The implementation and evaluation routines are available from <http://mel.speech.nwu.edu/sunxj/pda.htm>.