INTERSPEECH 2011
12th Annual Conference of the International Speech Communication Association

Florence, Italy
August 27-31. 2011

Singing Voice Analysis Using Relative Harmonic Delays

Ricardo Sousa, Aníbal Ferreira

Universidade do Porto, Portugal

In this paper we introduce new phase-related features denoting the delay between the harmonics and the fundamental frequency of a periodic signal, notably of voiced singing. These features are identified as Normalized Relative Delay (NRD) and denote the phase contribution to the shape invariance of a periodic signal. Thus, NRDs are amenable to a physical and psychophysical interpretation and are structurally independent of the overall time shift of the signal, an important property that is shared with the magnitude spectrum in the case of a locally stationary signal. We describe the NRD and report on preliminary studies testing the discrimination capability of NRDs applied to singing signals.

Full Paper

Bibliographic reference.  Sousa, Ricardo / Ferreira, Aníbal (2011): "Singing voice analysis using relative harmonic delays", In INTERSPEECH-2011, 1997-2000.