Search-free codebook mapping for artificial bandwidth extension

Heewan Park, Byungsik Yoon, Sangwon Kang, Andreas Spanias

Research output: Contribution to journalArticle

1 Citation (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1479-1482
Number of pages4
JournalIEICE Transactions on Communications
VolumeE95-B
Issue number4
DOIs
StatePublished - Apr 2012

Fingerprint

Bandwidth
Processing

Keywords

  • AMR
  • Artificial bandwidth extension
  • Codebook mapping
  • Speech enhancement

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Software

Cite this

Search-free codebook mapping for artificial bandwidth extension. / Park, Heewan; Yoon, Byungsik; Kang, Sangwon; Spanias, Andreas.

In: IEICE Transactions on Communications, Vol. E95-B, No. 4, 04.2012, p. 1479-1482.

Research output: Contribution to journalArticle

Park, Heewan ; Yoon, Byungsik ; Kang, Sangwon ; Spanias, Andreas. / Search-free codebook mapping for artificial bandwidth extension. In: IEICE Transactions on Communications. 2012 ; Vol. E95-B, No. 4. pp. 1479-1482.
@article{ec011cb7d2174880af8fc5a018216d6e,
title = "Search-free codebook mapping for artificial bandwidth extension",
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 = "AMR, Artificial bandwidth extension, Codebook mapping, Speech enhancement",
author = "Heewan Park and Byungsik Yoon and Sangwon Kang and Andreas Spanias",
year = "2012",
month = "4",
doi = "10.1587/transcom.E95.B.1479",
language = "English (US)",
volume = "E95-B",
pages = "1479--1482",
journal = "IEICE Transactions on Communications",
issn = "0916-8516",
publisher = "Maruzen Co., Ltd/Maruzen Kabushikikaisha",
number = "4",

}

TY - JOUR

T1 - Search-free codebook mapping for artificial bandwidth extension

AU - Park, Heewan

AU - Yoon, Byungsik

AU - Kang, Sangwon

AU - Spanias, Andreas

PY - 2012/4

Y1 - 2012/4

N2 - 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.

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.

KW - AMR

KW - Artificial bandwidth extension

KW - Codebook mapping

KW - Speech enhancement

UR - http://www.scopus.com/inward/record.url?scp=84859407306&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859407306&partnerID=8YFLogxK

U2 - 10.1587/transcom.E95.B.1479

DO - 10.1587/transcom.E95.B.1479

M3 - Article

AN - SCOPUS:84859407306

VL - E95-B

SP - 1479

EP - 1482

JO - IEICE Transactions on Communications

JF - IEICE Transactions on Communications

SN - 0916-8516

IS - 4

ER -