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A low-delay audio coder with constrained-entropy quantization
KTH, School of Electrical Engineering (EES), Sound and Image Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Sound and Image Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
2007 (English)In: 2007 IEEE WORKSHOP ON APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS, NEW YORK: IEEE , 2007, 225-228 p.Conference paper, Published paper (Refereed)
Abstract [en]

We present a low-delay, constrained-entropy, backward adaptive, linear-predictive audio coder with low computational complexity. In contrast to most practical linear-predictive coders, the coder facilitates the exploitation of reverse waterfilling. The coder uses time-invariant quantization step size and constrained-entropy coding, thus eliminating the convergence problems of backward adaptation near signal transitions. Yet rate variations are kept small by the usage of a mixture model density for the signal. The mixture model has the backward adapted model and a second model as components and the component probability is transmitted. Experimental results confirm the advantages of the coder structure and show that the coder provides good overall performance.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2007. 225-228 p.
Keyword [en]
Acoustics, Chlorine compounds, Computational complexity, Entropy, Programming theory, Signal processing
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-36111DOI: 10.1109/ASPAA.2007.4393029ISI: 000258319500057Scopus ID: 2-s2.0-50249130227ISBN: 978-1-4244-1618-9 (print)OAI: oai:DiVA.org:kth-36111DiVA: diva2:430580
Conference
IEEE Workshop on Applications of Signal Processing to Audio and Acoutics. New Paltz, NY. OCT 21-24, 2007
Available from: 2011-07-11 Created: 2011-07-08 Last updated: 2011-09-14Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf