DAVID (Da Amazing Voice Inflection Device) is a free, real-time voice transformation tool able to “colour” any voice recording with an emotion that wasn’t intended by it’s speaker. DAVID was especially designed with the affective psychology and neuroscience community in mind, and aims to provide researchers with new ways to produce and control affective stimuli, both for offline listening and for real-time paradigms. For instance, we have used it to create real-time emotional vocal feedback here.
Technically, DAVID is implemented as an open-source patch for the close-source audio processing plateform Max (Cycling’74), and, like Max, is available for most Windows and MacOS configurations. It is available free-of-charge under the MIT license.