We propose a wideband CELP-type speech coder at 16 kb/s based on a mel-generalized cepstral (MGC) analysis technique. MGC analysis makes it possible to obtain a more accurate representation of spectral zeros compared to linear predictive (LP) analysis and take a perceptual frequency scale into account. A major advantage of the proposed coder is that the benefits of MGC representation of speech spectra can be incorporated into the CELP coding process. Subjective tests show that the proposed coder at 16 kb/s achieves a significant improvement in performance over a 16 kb/s conventional CELP coder under the same coding framework and bit allocation. Moreover, the proposed coder is found to outperform the ITU-T G. 722 standard at 64 kb/s.
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Kazuhito KOISHIDA, Gou HIRABAYASHI, Keiichi TOKUDA, Takao KOBAYASHI, "A 16 kb/s Wideband CELP-Based Speech Coder Using Mel-Generalized Cepstral Analysis" in IEICE TRANSACTIONS on Information,
vol. E83-D, no. 4, pp. 876-883, April 2000, doi: .
Abstract: We propose a wideband CELP-type speech coder at 16 kb/s based on a mel-generalized cepstral (MGC) analysis technique. MGC analysis makes it possible to obtain a more accurate representation of spectral zeros compared to linear predictive (LP) analysis and take a perceptual frequency scale into account. A major advantage of the proposed coder is that the benefits of MGC representation of speech spectra can be incorporated into the CELP coding process. Subjective tests show that the proposed coder at 16 kb/s achieves a significant improvement in performance over a 16 kb/s conventional CELP coder under the same coding framework and bit allocation. Moreover, the proposed coder is found to outperform the ITU-T G. 722 standard at 64 kb/s.
URL: https://global.ieice.org/en_transactions/information/10.1587/e83-d_4_876/_p
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@ARTICLE{e83-d_4_876,
author={Kazuhito KOISHIDA, Gou HIRABAYASHI, Keiichi TOKUDA, Takao KOBAYASHI, },
journal={IEICE TRANSACTIONS on Information},
title={A 16 kb/s Wideband CELP-Based Speech Coder Using Mel-Generalized Cepstral Analysis},
year={2000},
volume={E83-D},
number={4},
pages={876-883},
abstract={We propose a wideband CELP-type speech coder at 16 kb/s based on a mel-generalized cepstral (MGC) analysis technique. MGC analysis makes it possible to obtain a more accurate representation of spectral zeros compared to linear predictive (LP) analysis and take a perceptual frequency scale into account. A major advantage of the proposed coder is that the benefits of MGC representation of speech spectra can be incorporated into the CELP coding process. Subjective tests show that the proposed coder at 16 kb/s achieves a significant improvement in performance over a 16 kb/s conventional CELP coder under the same coding framework and bit allocation. Moreover, the proposed coder is found to outperform the ITU-T G. 722 standard at 64 kb/s.},
keywords={},
doi={},
ISSN={},
month={April},}
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TY - JOUR
TI - A 16 kb/s Wideband CELP-Based Speech Coder Using Mel-Generalized Cepstral Analysis
T2 - IEICE TRANSACTIONS on Information
SP - 876
EP - 883
AU - Kazuhito KOISHIDA
AU - Gou HIRABAYASHI
AU - Keiichi TOKUDA
AU - Takao KOBAYASHI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E83-D
IS - 4
JA - IEICE TRANSACTIONS on Information
Y1 - April 2000
AB - We propose a wideband CELP-type speech coder at 16 kb/s based on a mel-generalized cepstral (MGC) analysis technique. MGC analysis makes it possible to obtain a more accurate representation of spectral zeros compared to linear predictive (LP) analysis and take a perceptual frequency scale into account. A major advantage of the proposed coder is that the benefits of MGC representation of speech spectra can be incorporated into the CELP coding process. Subjective tests show that the proposed coder at 16 kb/s achieves a significant improvement in performance over a 16 kb/s conventional CELP coder under the same coding framework and bit allocation. Moreover, the proposed coder is found to outperform the ITU-T G. 722 standard at 64 kb/s.
ER -