Third International Conference on Spoken Language Processing (ICSLP 94)
Constrained Multiple Centroid Analysis is a method of form ant estimation already used successfully in the analysis of adult speech. In this paper we examine the performance of this approach when applied to the speech of children. The accuracy of the estimated formant frequency is measured for a range of excitation frequencies. In order to gauge absolute performance, an acoustic analogue of the vocal tract is used. Speed and accuracy of the Constrained Multiple Centroid Analysis are examined in a comparative study with a Linear Prediction based formant estimation algorithm. Results show that Multiple Centroid Analysis provides less bias towards the nearest harmonic than the established method based on Linear Prediction. Furthermore, computational efficiency makes it an attractive alternative to Linear Prediction.
Bibliographic reference. Wrench, Alan A. / Watson, M. M. / Soutar, D. S. / Robertson, A. G. / Laver, John (1994): "Fast formant estimation of children's speech", In ICSLP-1994, 1651-1654.