A strategy for pitch conversion and its evaluation
Tim Ceyssens, Werner Verhelst, Patrick Wambacq · 2002
In order to transform the perceived speaker identity, a voice conversion system should, a.o., convert the speaker’s prosodic characteristics. When considering pitch contours, most systems only transform the pitch by simple scaling. A stochastic system that transforms pitch contours taking into account multiple pitch parameters has been developed and is described. A pitch transplantation system based on the overlap-add (OLA) algorithm is proposed as a tool for the evaluation of this pitch conversion system.