Speaker adaptation using combined transformation and Bayesian methods

V Digalakis, L Neumeyer - 1995 International Conference on …, 1995 - ieeexplore.ieee.org
The performance and robustness of a speech recognition system can be improved by
adapting the speech models to the speaker, the channel and the task. In continuous mixture …

Speaker adaptation using combined transformation and Bayesian methods

VV Digalakis, LG Neumeyer - IEEE transactions on speech and …, 1996 - ieeexplore.ieee.org
Adapting the parameters of a statistical speaker independent continuous-speech recognizer
to the speaker and the channel can significantly improve the recognition performance and …

Speaker adaptation using constrained estimation of Gaussian mixtures

VV Digalakis, D Rtischev… - IEEE Transactions on …, 1995 - ieeexplore.ieee.org
A trend in automatic speech recognition systems is the use of continuous mixture-density
hidden Markov models (HMMs). Despite the good recognition performance that these …

Improved Bayesian learning of hidden Markov models for speaker adaptation

JT Chien, CH Lee, HC Wang - 1997 IEEE International …, 1997 - ieeexplore.ieee.org
We propose an improved maximum a posteriori (MAP) learning algorithm of continuous-
density hidden Markov model (CDHMM) parameters for speaker adaptation. The algorithm …

[PDF][PDF] A comparative study of speaker adaptation techniques

L Neumeyer, A Sankar, V Digalakis - system, 1995 - researchgate.net
In previous work, we showed how to constrain the estimation of continuous mixture-density
hidden Markov models (HMMs) when the amount of adaptation data is small. We used …

Speaker adaptation for large vocabulary speech recognition systems using speaker Markov models

G Rigoll - International Conference on Acoustics, Speech, and …, 1989 - ieeexplore.ieee.org
An alternative approach to speaker adaptation for a large-vocabulary hidden-Markov-model-
based speech recognition system is described. The goal of this investigation was to train the …

Speaker adaptation with autonomous model complexity control by MDL principle

K Shinoda, T Watanabe - 1996 IEEE International Conference …, 1996 - ieeexplore.ieee.org
A speaker adaptation method for continuous density HMMs, which performs well for any
amount of data for adaptation, is proposed. This method estimates shift parameters for the …

Structural MAP speaker adaptation using hierarchical priors

K Shinoda, CH Lee - 1997 IEEE Workshop on Automatic …, 1997 - ieeexplore.ieee.org
Most adaptation methods for speech recognition using hidden Markov models fall into two
categories; one is the Bayesian approach, where prior distributions for the model …

Speaker adaptation based on MAP estimation of HMM parameters

CH Lee, JL Gauvain - 1993 IEEE International Conference on …, 1993 - ieeexplore.ieee.org
A number of issues related to the application of Bayesian learning techniques to speaker
adaptation are investigated. It is shown that the seed models required to construct prior …

N-best-based instantaneous speaker adaptation method for speech recognition

T Matsui, S Furui - … on Spoken Language Processing. ICSLP'96, 1996 - ieeexplore.ieee.org
An instantaneous speaker adaptation method is proposed that uses N-best decoding for
continuous mixture-density hidden Markov model-based speech recognition systems. An N …