Formant location from LPC analysis data
Roy C. Snell, F. Milinazzo · IEEE Transactions on Speech and Audio Processing · 1993
The estimation of formant frequencies and bandwidths from the filter coefficients obtained through linear-predictive-coding (LPC) analysis of speech is discussed from several viewpoints. A method for locating roots within the unit circle is derived. This algorithm is particularly well suited to computations carried out in fixed-point arithmetic using specialized signal processing hardware.>