Publication result detail

Audio declipping performance enhancement via crossfading

ZÁVIŠKA, P.; RAJMIC, P.; MOKRÝ, O.

Original Title

Audio declipping performance enhancement via crossfading

English Title

Audio declipping performance enhancement via crossfading

Type

WoS Article

Original Abstract

Some audio declipping methods produce waveforms that do not fully respect the actual process of clipping and allow a deviation on the reliable samples. This article reports what effect on perception it has if the output of such “inconsistent” methods is pushed towards “consistent” solutions by postprocessing. We first propose a simple sample replacement method, then we identify its main weaknesses and propose an improved variant. The experiments show that the vast majority of inconsistent declipping methods significantly benefit from the proposed approach in terms of objective perceptual metrics. In particular, we show that the SS PEW method based on social sparsity combined with the proposed method performs comparable to top methods from the consistent class, but at a computational cost of one order of magnitude lower.

English abstract

Some audio declipping methods produce waveforms that do not fully respect the actual process of clipping and allow a deviation on the reliable samples. This article reports what effect on perception it has if the output of such “inconsistent” methods is pushed towards “consistent” solutions by postprocessing. We first propose a simple sample replacement method, then we identify its main weaknesses and propose an improved variant. The experiments show that the vast majority of inconsistent declipping methods significantly benefit from the proposed approach in terms of objective perceptual metrics. In particular, we show that the SS PEW method based on social sparsity combined with the proposed method performs comparable to top methods from the consistent class, but at a computational cost of one order of magnitude lower.

Keywords

clipping;crossfade;declipping;optimization;sparsity;reliable samples

Key words in English

clipping;crossfade;declipping;optimization;sparsity;reliable samples

Authors

ZÁVIŠKA, P.; RAJMIC, P.; MOKRÝ, O.

RIV year

2022

Released

27.10.2021

Publisher

Elsevier

ISBN

0165-1684

Periodical

SIGNAL PROCESSING

Volume

192

Number

1

State

Kingdom of the Netherlands

Pages from

1

Pages to

5

Pages count

5

URL

https://www.sciencedirect.com/science/article/pii/S0165168421004023

Full text in the Digital Library

http://hdl.handle.net/11012/203082

BibTex

@article{BUT172815,
  author="Pavel {Záviška} and Pavel {Rajmic} and Ondřej {Mokrý}",
  title="Audio declipping performance enhancement via crossfading",
  journal="SIGNAL PROCESSING",
  year="2021",
  volume="192",
  number="1",
  pages="1--5",
  doi="10.1016/j.sigpro.2021.108365",
  issn="0165-1684",
  url="https://www.sciencedirect.com/science/article/pii/S0165168421004023"
}

Documents

1-s2.0-S0165168421004023-main