® Laughter Synthesis

Research and Development

  • Title: Laughter Synthesis
  • Real Title: Semi-Parametric Synthesis of Speaker-Like Laughter
  • Autor: Greg Beller
  • Signal Processing, Speech Modification
  • Development made in 2009

This page contains the sound examples mentioned in the following article:

[Beller14], Beller, G., « Semi-Parametric Synthesis of Speaker-Like Laughter », Phonetics of Laughing. Universaar – Saarland University Press: Saarbrücken. Trouvain, Jürgen & Campbell, Nick (eds.), 2014.

This paper describes a semi-parametric speaker-like laughter synthesis method. A large corpus of spontaneous laughter is presented. An attempt to use traditional automatic segmentation on the data is discussed. Significant results from the statistical analysis of the corpus are then presented, with concern to the static and dynamic acoustic characterizations of bouts and syllables. Interestingly, laughter prosody seems to be close to the prosody of the verbal speech. After this analysis part, a method for synthesizing laughter from any neutral utterance using information from the previous results is described. A TTS algorithm selects some phones that are duplicated to create a homotype series. Finally, speech processings modify the prosody of this series, providing a realistic high quality speaker-like laughter.

laughter_synthesis

 

Here is a starting recording:

Some parts are extracted and duplicated to form a bout:

The bout is modulated to produce a synthesized laughter:

Another example, starting from an expressive utterance:

Same method applied provides automatically the following synthesized laughter: