Document Type
Conference Paper
Rights
This item is available under a Creative Commons License for non-commercial use only
Disciplines
Electrical and electronic engineering
Abstract
Often when performing glottal closed phase covariance linear prediction, a positive real pole can appear in the resulting filter transfer function. The commonly adopted approach is to discard this pole, as it does not fit with the usual model of the all-pole vocal tract filter. However, this real pole describes some aspect of the speech signal; this paper provides a novel perspective on its occurrence. This viewpoint has a useful implication to the speech community, especially from the perspective of fitting a glottal pulse to the inverse filtered signal, as the real pole describes the return phase of the glottal flow for certain voice types that adhere to a reasonable criterion. Tests with synthetic signals are performed to validate this approach.
Recommended Citation
O'Cinneide, A., Dorran, D., Gainza, M., & Coyle, E. (2010) On the Appearance of a Positive Real Pole in the Results of Glottal Closed Phase Linear Prediction. EUSIPCO 2010, Aalbourg, Denmark.
Publication Details
EUSIPCO 2010, Aalbourg, Denmark