An Objective Measure Based on an Auditory Model for Assessing Low-Rate Coded Speech

Toshiro WATANABE; Shinji HAYASHI

An Objective Measure Based on an Auditory Model for Assessing Low-Rate Coded Speech

Toshiro WATANABE, Shinji HAYASHI

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We propose an objective measure from assessing low-rate coded speech. The model for this objective measure, in which several known features of the perceptual processing of speech sounds by the human ear are emulated, is based on the Hertz-to-Bark transformation, critical-band filtering with preemphasis to boost higher frequencies, nonlinear conversion for subjective loudness, and temporal (forward) masking. The effectiveness of the measure, called the Bark spectral distortion rating (BSDR), was validated by second-order polynomial regression analysis between the computed BSDR values and subjective MOS ratings obtained for a large number of utterances coded by several versions of CELP coders and one VSELP coder under three degradation conditions: input speech levels, transmission error rates, and background noise levels. The BSDR values correspond better to MOS ratings than several commonly used measures. Thus, BSDR can be used to accurately predict subjective scores.

Publication: IEICE TRANSACTIONS on Information Vol.E78-D No.6 pp.751-757

Publication Date: 1995/06/25

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Type of Manuscript: Special Section PAPER (Special Issue on Spoken Language Processing)

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Toshiro WATANABE, Shinji HAYASHI, "An Objective Measure Based on an Auditory Model for Assessing Low-Rate Coded Speech" in IEICE TRANSACTIONS on Information, vol. E78-D, no. 6, pp. 751-757, June 1995, doi: .
Abstract: We propose an objective measure from assessing low-rate coded speech. The model for this objective measure, in which several known features of the perceptual processing of speech sounds by the human ear are emulated, is based on the Hertz-to-Bark transformation, critical-band filtering with preemphasis to boost higher frequencies, nonlinear conversion for subjective loudness, and temporal (forward) masking. The effectiveness of the measure, called the Bark spectral distortion rating (BSDR), was validated by second-order polynomial regression analysis between the computed BSDR values and subjective MOS ratings obtained for a large number of utterances coded by several versions of CELP coders and one VSELP coder under three degradation conditions: input speech levels, transmission error rates, and background noise levels. The BSDR values correspond better to MOS ratings than several commonly used measures. Thus, BSDR can be used to accurately predict subjective scores.
URL: https://globals.ieice.org/en_transactions/information/10.1587/e78-d_6_751/_p

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@ARTICLE{e78-d_6_751,
author={Toshiro WATANABE, Shinji HAYASHI, },
journal={IEICE TRANSACTIONS on Information},
title={An Objective Measure Based on an Auditory Model for Assessing Low-Rate Coded Speech},
year={1995},
volume={E78-D},
number={6},
pages={751-757},
abstract={We propose an objective measure from assessing low-rate coded speech. The model for this objective measure, in which several known features of the perceptual processing of speech sounds by the human ear are emulated, is based on the Hertz-to-Bark transformation, critical-band filtering with preemphasis to boost higher frequencies, nonlinear conversion for subjective loudness, and temporal (forward) masking. The effectiveness of the measure, called the Bark spectral distortion rating (BSDR), was validated by second-order polynomial regression analysis between the computed BSDR values and subjective MOS ratings obtained for a large number of utterances coded by several versions of CELP coders and one VSELP coder under three degradation conditions: input speech levels, transmission error rates, and background noise levels. The BSDR values correspond better to MOS ratings than several commonly used measures. Thus, BSDR can be used to accurately predict subjective scores.},
keywords={},
doi={},
ISSN={},
month={June},}

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TY - JOUR
TI - An Objective Measure Based on an Auditory Model for Assessing Low-Rate Coded Speech
T2 - IEICE TRANSACTIONS on Information
SP - 751
EP - 757
AU - Toshiro WATANABE
AU - Shinji HAYASHI
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E78-D
IS - 6
JA - IEICE TRANSACTIONS on Information
Y1 - June 1995
AB - We propose an objective measure from assessing low-rate coded speech. The model for this objective measure, in which several known features of the perceptual processing of speech sounds by the human ear are emulated, is based on the Hertz-to-Bark transformation, critical-band filtering with preemphasis to boost higher frequencies, nonlinear conversion for subjective loudness, and temporal (forward) masking. The effectiveness of the measure, called the Bark spectral distortion rating (BSDR), was validated by second-order polynomial regression analysis between the computed BSDR values and subjective MOS ratings obtained for a large number of utterances coded by several versions of CELP coders and one VSELP coder under three degradation conditions: input speech levels, transmission error rates, and background noise levels. The BSDR values correspond better to MOS ratings than several commonly used measures. Thus, BSDR can be used to accurately predict subjective scores.
ER -