Toward a Psychoacoustic Model of Spectral Noise in the Voice Source

Previous studies (Kreiman et al., 2015) have proposed a psychoacoustic model of voice quality that includes a four-parameter spectral-domain model of the harmonic voice source (H1-H2, H2-H4, H4-the harmonic nearest 2 kHz, and that harmonic to the harmonic nearest 5 kHz). In this paper we report a parallel psychoacoustic study of the spectral shape of the inharmonic source. Our goal is two-fold: to provide a framework for nuanced measurement of vocal noise, and to improve understanding of the interaction between harmonic and inharmonic aspects of the voice source in determining voice quality.