We are happy to propose you to discover from now two new tools for add emotions in voice :
Angus a real-time voice transformation tool able to simulate cues of arousal/roughness on arbitrary voice signals
and Cleese a Python toolbox for performing random or deterministic pitch, timescale, filtering and gain transformations on an input sound.
You can also download the new version of David
Those tools are developed by the CREAM Neuroscience Lab at IRCAM with funding from the European Research Council (CREAM 335536, PI: JJ Aucouturier)
Everything is free and real !