Voice transformation at Ircam
The following sound examples were made while I worked for Ircam and were presented at the 35th International AES Conference (Audio for Games) in London, UK, Feb 2009.
Using a phase vocoder, time and frequency aspects of the signal may be modified nearly independently. It has been improved in a number of ways to make modification with no or little loss of quality and naturalness. From an original recording, we can make a number of elementary modifications:
- original recording
- decreasing the pitch
- increasing the pitch
- modifying the vocal tract: timbre 1 and timbre 2
- voiced contents
- noise contents and
- glottal source
Transformation of sex and age
- Examples of transformation of one author to 12 voices in the musical installation of Jean-Baptiste Barrière (May 2007)
- Examples of transformation of the male actor to a woman in the film "Les Amours d'Astrée et de Céladon" by E. Rohmer (Jan 2007)
- Transformation of monologue to dialogue (recorded and synthesized speech)
See also demo below.
Transformations of voice quality and speech style
- softer voice
- dull and eager speech
Video demonstration of voice transformation
The video below shows the effect of applying four different voice transformations (man, old woman, little girl, and young man) to a single voice and assigned each to a cartoon character. Play the video first, then listen to the original: .
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|© 2008. Characters by Cantoche and voices by Ircam. Flash player by LongTail Video|