ISCA Archive SSW 2007
ISCA Archive SSW 2007

Modelling voiceless speech segments by means of an additive procedure based on the computation of formant sinusoids

Ingo Hertrich, Hermann Ackermann

A previously developed vowel synthesis algorithm implements formants as sinusoids, amplitude- and phase-modulated by the fundamental frequency (Hertrich and Ackermann, 1999, Journal of the Acoustical Society of America, 106, 2988- 2990). The present study extends this approach to the modelling of the acoustic characteristics of aperiodic speech segments. To these ends, a voiceless signal component is generated by adding at each sample point a random parameter onto the formants' phase progression. Voiceless stop consonants then can be modelled, e.g., by combining a release burst, i.e., an interval in which the formant sinusoids abruptly increase and gradually decrease in amplitude, with formantshaped noise components, representing inter-articulator frication, aspiration, and breathy vowel onset.


Cite as: Hertrich, I., Ackermann, H. (2007) Modelling voiceless speech segments by means of an additive procedure based on the computation of formant sinusoids. Proc. 6th ISCA Workshop on Speech Synthesis (SSW 6), 178-181

@inproceedings{hertrich07_ssw,
  author={Ingo Hertrich and Hermann Ackermann},
  title={{Modelling voiceless speech segments by means of an additive procedure based on the computation of formant sinusoids}},
  year=2007,
  booktitle={Proc. 6th ISCA Workshop on Speech Synthesis (SSW 6)},
  pages={178--181}
}