The present paper describes a quality enhancement of band-limited speech signals. In regular telephone communication, the quality of the received speech signal is degraded by band limitation. We propose an effective but simple scheme for obtaining narrowband speech signals in which the frequency components are estimated from band limited signals. The proposed method utilizes aliasing components generated by wavelet reconstruction filters in the inverse discrete wavelet transform. The results of enhancement have been verified by applying this method to speech samples via telephone lines to obtain a noticeable improvement in speech quality.
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Seiji HAYASHI, Masahiro SUGUIMOTO, "Speech Quality Enhancement Using Wavelet Reconstruction Filters" in IEICE TRANSACTIONS on Information,
vol. E88-D, no. 6, pp. 1299-1303, June 2005, doi: 10.1093/ietisy/e88-d.6.1299.
Abstract: The present paper describes a quality enhancement of band-limited speech signals. In regular telephone communication, the quality of the received speech signal is degraded by band limitation. We propose an effective but simple scheme for obtaining narrowband speech signals in which the frequency components are estimated from band limited signals. The proposed method utilizes aliasing components generated by wavelet reconstruction filters in the inverse discrete wavelet transform. The results of enhancement have been verified by applying this method to speech samples via telephone lines to obtain a noticeable improvement in speech quality.
URL: https://global.ieice.org/en_transactions/information/10.1093/ietisy/e88-d.6.1299/_p
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@ARTICLE{e88-d_6_1299,
author={Seiji HAYASHI, Masahiro SUGUIMOTO, },
journal={IEICE TRANSACTIONS on Information},
title={Speech Quality Enhancement Using Wavelet Reconstruction Filters},
year={2005},
volume={E88-D},
number={6},
pages={1299-1303},
abstract={The present paper describes a quality enhancement of band-limited speech signals. In regular telephone communication, the quality of the received speech signal is degraded by band limitation. We propose an effective but simple scheme for obtaining narrowband speech signals in which the frequency components are estimated from band limited signals. The proposed method utilizes aliasing components generated by wavelet reconstruction filters in the inverse discrete wavelet transform. The results of enhancement have been verified by applying this method to speech samples via telephone lines to obtain a noticeable improvement in speech quality.},
keywords={},
doi={10.1093/ietisy/e88-d.6.1299},
ISSN={},
month={June},}
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TY - JOUR
TI - Speech Quality Enhancement Using Wavelet Reconstruction Filters
T2 - IEICE TRANSACTIONS on Information
SP - 1299
EP - 1303
AU - Seiji HAYASHI
AU - Masahiro SUGUIMOTO
PY - 2005
DO - 10.1093/ietisy/e88-d.6.1299
JO - IEICE TRANSACTIONS on Information
SN -
VL - E88-D
IS - 6
JA - IEICE TRANSACTIONS on Information
Y1 - June 2005
AB - The present paper describes a quality enhancement of band-limited speech signals. In regular telephone communication, the quality of the received speech signal is degraded by band limitation. We propose an effective but simple scheme for obtaining narrowband speech signals in which the frequency components are estimated from band limited signals. The proposed method utilizes aliasing components generated by wavelet reconstruction filters in the inverse discrete wavelet transform. The results of enhancement have been verified by applying this method to speech samples via telephone lines to obtain a noticeable improvement in speech quality.
ER -