| | |
Summary: A study of acoustic-to-articulatory inversion of speech by analysis-by-synthesis
using chain matrices and the Maeda articulatory model
Sankaran Panchapagesana)
and Abeer Alwan
Department of Electrical Engineering
University of California,
Los Angeles,
CA 90095
(Dated: October 5, 2010)
speech inversion by formant matching 1
Abstract
In this paper, a quantitative study of acoustic-to-articulatory inversion
for vowel speech sounds by analysis-by-synthesis using the Maeda ar-
ticulatory model is performed. For chain matrix calculation of vocal
tract (VT) acoustics, the chain matrix derivatives with respect to area
function are calculated and used in a quasi-Newton method for opti-
mizing articulatory trajectories. The cost function includes a distance
measure between natural and synthesized first three formants, and pa-
rameter regularization and continuity terms. Calibration of the Maeda
model to two speakers, one male and one female, from the University
|
