A Low Power Bandwidth Extension Technique

Byungsik YOON; Heewan PARK; Sangwon KANG

doi:10.1587/transcom.E95.B.358

A Low Power Bandwidth Extension Technique

Byungsik YOON, Heewan PARK, Sangwon KANG

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This paper proposes a low power artificial bandwidth extension (ABE) technique that reduces computational complexity by introducing a fast codebook mapping method. We also introduce a weighted classified codebook mapping method for constructing the spectral envelope of the wideband speech signal. Classified codebooks are used to reduce spectrum mapping errors caused by characteristic difference among voiced, unvoiced and onset sound. The weighted distortion measure is also used to handle the spectral sensibility. The performance of the proposed ABE system is evaluated by a spectral distortion (SD), a perceptual evaluation of speech quality (PESQ), informal listening tests and weighted million operations per second (WMOPS) calculations. With the use of fast codebook mapping, the WMOPS complexity of the codebook mapping module is reduced by 45.17%.

Publication: IEICE TRANSACTIONS on Communications Vol.E95-B No.1 pp.358-361

Publication Date: 2012/01/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E95.B.358

Type of Manuscript: LETTER

Category: Multimedia Systems for Communications

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Byungsik YOON, Heewan PARK, Sangwon KANG, "A Low Power Bandwidth Extension Technique" in IEICE TRANSACTIONS on Communications, vol. E95-B, no. 1, pp. 358-361, January 2012, doi: 10.1587/transcom.E95.B.358.
Abstract: This paper proposes a low power artificial bandwidth extension (ABE) technique that reduces computational complexity by introducing a fast codebook mapping method. We also introduce a weighted classified codebook mapping method for constructing the spectral envelope of the wideband speech signal. Classified codebooks are used to reduce spectrum mapping errors caused by characteristic difference among voiced, unvoiced and onset sound. The weighted distortion measure is also used to handle the spectral sensibility. The performance of the proposed ABE system is evaluated by a spectral distortion (SD), a perceptual evaluation of speech quality (PESQ), informal listening tests and weighted million operations per second (WMOPS) calculations. With the use of fast codebook mapping, the WMOPS complexity of the codebook mapping module is reduced by 45.17%.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.358/_p

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@ARTICLE{e95-b_1_358,
author={Byungsik YOON, Heewan PARK, Sangwon KANG, },
journal={IEICE TRANSACTIONS on Communications},
title={A Low Power Bandwidth Extension Technique},
year={2012},
volume={E95-B},
number={1},
pages={358-361},
abstract={This paper proposes a low power artificial bandwidth extension (ABE) technique that reduces computational complexity by introducing a fast codebook mapping method. We also introduce a weighted classified codebook mapping method for constructing the spectral envelope of the wideband speech signal. Classified codebooks are used to reduce spectrum mapping errors caused by characteristic difference among voiced, unvoiced and onset sound. The weighted distortion measure is also used to handle the spectral sensibility. The performance of the proposed ABE system is evaluated by a spectral distortion (SD), a perceptual evaluation of speech quality (PESQ), informal listening tests and weighted million operations per second (WMOPS) calculations. With the use of fast codebook mapping, the WMOPS complexity of the codebook mapping module is reduced by 45.17%.},
keywords={},
doi={10.1587/transcom.E95.B.358},
ISSN={1745-1345},
month={January},}

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TY - JOUR
TI - A Low Power Bandwidth Extension Technique
T2 - IEICE TRANSACTIONS on Communications
SP - 358
EP - 361
AU - Byungsik YOON
AU - Heewan PARK
AU - Sangwon KANG
PY - 2012
DO - 10.1587/transcom.E95.B.358
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2012
AB - This paper proposes a low power artificial bandwidth extension (ABE) technique that reduces computational complexity by introducing a fast codebook mapping method. We also introduce a weighted classified codebook mapping method for constructing the spectral envelope of the wideband speech signal. Classified codebooks are used to reduce spectrum mapping errors caused by characteristic difference among voiced, unvoiced and onset sound. The weighted distortion measure is also used to handle the spectral sensibility. The performance of the proposed ABE system is evaluated by a spectral distortion (SD), a perceptual evaluation of speech quality (PESQ), informal listening tests and weighted million operations per second (WMOPS) calculations. With the use of fast codebook mapping, the WMOPS complexity of the codebook mapping module is reduced by 45.17%.
ER -