ISCA Archive Eurospeech 1997
ISCA Archive Eurospeech 1997

A simple and efficient algorithm for the compression of MBROLA segment databases

Olivier van der Vrecken, Nicolas Pierret, Thierry Dutoit, Vincent Pagel, Fabrice Malfrere

Most state-of-the-art TTS synthesizers are based on a technique known as synthesis by concatenation, in which speech is produced by concatenating elementary speech units. The design of a high-quality TTS system implies the storage of a large number of segments. To facilitate the storage of these segments, this paper proposes a very low complexity coder to compress unit databases with a toll quality. A particular interest has been taken in the databases used by the MBROLA synthesizer, composed of fixed-length pitch periods with constrained harmonic phases. The coder developed here uses this special characteristic to reach compression rates from 7 to 9 without degrading the speech quality produced by the synthesizer, and with very limited computational cost.


doi: 10.21437/Eurospeech.1997-177

Cite as: Vrecken, O.v.d., Pierret, N., Dutoit, T., Pagel, V., Malfrere, F. (1997) A simple and efficient algorithm for the compression of MBROLA segment databases. Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997), 421-424, doi: 10.21437/Eurospeech.1997-177

@inproceedings{vrecken97_eurospeech,
  author={Olivier van der Vrecken and Nicolas Pierret and Thierry Dutoit and Vincent Pagel and Fabrice Malfrere},
  title={{A simple and efficient algorithm for the compression of MBROLA segment databases}},
  year=1997,
  booktitle={Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997)},
  pages={421--424},
  doi={10.21437/Eurospeech.1997-177},
  issn={1018-4074}
}