Search-Free Codebook Mapping for Artificial Bandwidth Extension
Summary :
A new codebook mapping algorithm for artificial bandwidth extension (ABE) is introduced in this paper. We design a wideband line spectrum pair (LSP) codebook which is coupled with the same index as the LSP codebook of a narrowband speech codec. The received narrowband LSP codebook indices are used to directly induce wideband LSP codewords. Thus, the proposed scheme eliminates codebook search processing to estimate the wideband spectrum envelope. We apply the proposed scheme to bandwidth extension in adaptive multi-rate (AMR) compressed domain. Its performance is assessed via the perceptual evaluation of speech quality (PESQ), informal listening tests, and weighted million operations per second (WMOPS) calculations.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E95-B No.4 pp.1479-1482
- Publication Date
- 2012/04/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E95.B.1479
- Type of Manuscript
- LETTER
- Category
- Multimedia Systems for Communications
Authors
Keyword
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Heewan PARK, Byungsik YOON, Sangwon KANG, Andreas SPANIAS, "Search-Free Codebook Mapping for Artificial Bandwidth Extension" in IEICE TRANSACTIONS on Communications,
vol. E95-B, no. 4, pp. 1479-1482, April 2012, doi: 10.1587/transcom.E95.B.1479.
Abstract: A new codebook mapping algorithm for artificial bandwidth extension (ABE) is introduced in this paper. We design a wideband line spectrum pair (LSP) codebook which is coupled with the same index as the LSP codebook of a narrowband speech codec. The received narrowband LSP codebook indices are used to directly induce wideband LSP codewords. Thus, the proposed scheme eliminates codebook search processing to estimate the wideband spectrum envelope. We apply the proposed scheme to bandwidth extension in adaptive multi-rate (AMR) compressed domain. Its performance is assessed via the perceptual evaluation of speech quality (PESQ), informal listening tests, and weighted million operations per second (WMOPS) calculations.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.1479/_p
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@ARTICLE{e95-b_4_1479,
author={Heewan PARK, Byungsik YOON, Sangwon KANG, Andreas SPANIAS, },
journal={IEICE TRANSACTIONS on Communications},
title={Search-Free Codebook Mapping for Artificial Bandwidth Extension},
year={2012},
volume={E95-B},
number={4},
pages={1479-1482},
abstract={A new codebook mapping algorithm for artificial bandwidth extension (ABE) is introduced in this paper. We design a wideband line spectrum pair (LSP) codebook which is coupled with the same index as the LSP codebook of a narrowband speech codec. The received narrowband LSP codebook indices are used to directly induce wideband LSP codewords. Thus, the proposed scheme eliminates codebook search processing to estimate the wideband spectrum envelope. We apply the proposed scheme to bandwidth extension in adaptive multi-rate (AMR) compressed domain. Its performance is assessed via the perceptual evaluation of speech quality (PESQ), informal listening tests, and weighted million operations per second (WMOPS) calculations.},
keywords={},
doi={10.1587/transcom.E95.B.1479},
ISSN={1745-1345},
month={April},}
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TY - JOUR
TI - Search-Free Codebook Mapping for Artificial Bandwidth Extension
T2 - IEICE TRANSACTIONS on Communications
SP - 1479
EP - 1482
AU - Heewan PARK
AU - Byungsik YOON
AU - Sangwon KANG
AU - Andreas SPANIAS
PY - 2012
DO - 10.1587/transcom.E95.B.1479
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2012
AB - A new codebook mapping algorithm for artificial bandwidth extension (ABE) is introduced in this paper. We design a wideband line spectrum pair (LSP) codebook which is coupled with the same index as the LSP codebook of a narrowband speech codec. The received narrowband LSP codebook indices are used to directly induce wideband LSP codewords. Thus, the proposed scheme eliminates codebook search processing to estimate the wideband spectrum envelope. We apply the proposed scheme to bandwidth extension in adaptive multi-rate (AMR) compressed domain. Its performance is assessed via the perceptual evaluation of speech quality (PESQ), informal listening tests, and weighted million operations per second (WMOPS) calculations.
ER -
English
