TY - GEN
T1 - Comparison of auto-regressive, non-stationary excited signal parameter estimation methods
AU - Sasou, Akira
AU - Goto, Masataka
AU - Hayamizu, Satoru
AU - Tanaka, Kazuyo
PY - 2004
Y1 - 2004
N2 - Previously, we proposed an Auto-Regressive Hidden Markov Model (AR-HMM) and an accompanying parameter estimation method. An AR-HMM was obtained by combining an AR process with an HMM introduced as a non-stationary excitation model. We demonstrated that the AR-HMM can accurately estimate the characteristics of both articulatory systems and excitation signals from high-pitched speech. As the parameter estimation method iteratively executes learning processes of HMM parameters, the proposed method was calculation-intensive. Here, we propose two novel kinds of auto-regressive, non-stationary excited signal parameter estimation methods to reduce the amount of calculation required.
AB - Previously, we proposed an Auto-Regressive Hidden Markov Model (AR-HMM) and an accompanying parameter estimation method. An AR-HMM was obtained by combining an AR process with an HMM introduced as a non-stationary excitation model. We demonstrated that the AR-HMM can accurately estimate the characteristics of both articulatory systems and excitation signals from high-pitched speech. As the parameter estimation method iteratively executes learning processes of HMM parameters, the proposed method was calculation-intensive. Here, we propose two novel kinds of auto-regressive, non-stationary excited signal parameter estimation methods to reduce the amount of calculation required.
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M3 - Conference contribution
AN - SCOPUS:17644375209
SN - 0780386086
SN - 9780780386082
T3 - Machine Learning for Signal Processing XIV - Proceedings of the 2004 IEEE Signal Processing Society Workshop
SP - 295
EP - 304
BT - Machine Learning for Signal Processing XIV - Proceedings of 2004 IEEE Signal Processing Society Workshop
A2 - Barros, A.
A2 - Principe, J.
A2 - Larsen, J.
A2 - Adali, T.
A2 - Douglas, S.
T2 - Machine Learning for Signal Processing XIV - Proceedings of the 2004 IEEE Signal Processing Society Workshop
Y2 - 29 September 2004 through 1 October 2004
ER -