1. Introduction Many languages of the world use differences in voice quality or phonation type to contain linguistic functions. Thus, in certain languages, lexical items are differentiated solely on the basis of differences in voice quality. For example, in Jalapa Mazatec, an Otomanguean language spoken in Mexico (Kirk et al. 1993), the three words /ja! / meaning 'tree', /jaª ! / meaning 'he we...

In this paper we present a flexible deterministic plus stochastic model (DSM) approach for parametric speech analysis and synthesis with high quality. The novelty of the proposed speech processing system lies in its extended means to estimate the unvoiced stochastic component and to robustly handle the transformation of the glottal excitation source. It is therefore well suited as speech system...

OBJECTIVE To review the current published available research into the impact of voice training on the vocal quality of professional voice users, to provide implications for vocal health and recommendations for further research. DESIGN Literature review with a systematic approach. METHODS A systematic search of the literature was conducted using electronic databases and the following defined...