Robust formant analysis for speech synthesis applications
L. F. Willems · 1987
For speech synthesis applications a formant description of the speech signal has a number of advantages over other parametrizations.The analysis of formant frequencies and bandwidths from the LPC coefficients has two drawbacks: sometimes the number of formapts detected is smaller than is needed for the synthesizer and sometimes due to numerical instability, the analysis fails completely.A method is described to first derive the formant frequencies by means of the Split Levinson Algorithm and second, to find optimal bandwidth values from a table.