A fast pitch search algorithm using the skipping technique is proposed to reduce the computation time in CELP vocoder. Based on the characteristics of the correlation function of speech signal, the proposed algorithm skips over certain ranges in the full pitch search range in a simple way. Though the search range is reduced, high speech quality can be maintained since those lags having high correlation values are not skipped over and are used for search by closed-loop analysis. To improve the efficiency of the proposed method, we develop three variants of the skipping technique. The experimental results show that the proposed and the modified algorithm can reduce the computation time in the pitch search considerably, over 60% reduction compared with the traditional full search method.
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JooHun LEE, MyungJin BAE, Souguil ANN, "The Skipping Technique: A Simple and Fast Algorithm to Find the Pitch in CELP Vocoder" in IEICE TRANSACTIONS on Fundamentals,
vol. E78-A, no. 11, pp. 1571-1575, November 1995, doi: .
Abstract: A fast pitch search algorithm using the skipping technique is proposed to reduce the computation time in CELP vocoder. Based on the characteristics of the correlation function of speech signal, the proposed algorithm skips over certain ranges in the full pitch search range in a simple way. Though the search range is reduced, high speech quality can be maintained since those lags having high correlation values are not skipped over and are used for search by closed-loop analysis. To improve the efficiency of the proposed method, we develop three variants of the skipping technique. The experimental results show that the proposed and the modified algorithm can reduce the computation time in the pitch search considerably, over 60% reduction compared with the traditional full search method.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e78-a_11_1571/_p
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@ARTICLE{e78-a_11_1571,
author={JooHun LEE, MyungJin BAE, Souguil ANN, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={The Skipping Technique: A Simple and Fast Algorithm to Find the Pitch in CELP Vocoder},
year={1995},
volume={E78-A},
number={11},
pages={1571-1575},
abstract={A fast pitch search algorithm using the skipping technique is proposed to reduce the computation time in CELP vocoder. Based on the characteristics of the correlation function of speech signal, the proposed algorithm skips over certain ranges in the full pitch search range in a simple way. Though the search range is reduced, high speech quality can be maintained since those lags having high correlation values are not skipped over and are used for search by closed-loop analysis. To improve the efficiency of the proposed method, we develop three variants of the skipping technique. The experimental results show that the proposed and the modified algorithm can reduce the computation time in the pitch search considerably, over 60% reduction compared with the traditional full search method.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - The Skipping Technique: A Simple and Fast Algorithm to Find the Pitch in CELP Vocoder
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1571
EP - 1575
AU - JooHun LEE
AU - MyungJin BAE
AU - Souguil ANN
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E78-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 1995
AB - A fast pitch search algorithm using the skipping technique is proposed to reduce the computation time in CELP vocoder. Based on the characteristics of the correlation function of speech signal, the proposed algorithm skips over certain ranges in the full pitch search range in a simple way. Though the search range is reduced, high speech quality can be maintained since those lags having high correlation values are not skipped over and are used for search by closed-loop analysis. To improve the efficiency of the proposed method, we develop three variants of the skipping technique. The experimental results show that the proposed and the modified algorithm can reduce the computation time in the pitch search considerably, over 60% reduction compared with the traditional full search method.
ER -