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Flexible quantization of audio and speech based on the autoregressive model
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: CONFERENCE RECORD OF THE FORTY-FIRST ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1-5, NEW YORK: IEEE , 2007, 535-539 p.Conference paper, Published paper (Refereed)
Abstract [en]

We describe a coding scheme based on audio and speech quantization with an adaptive quantizer derived from the autoregressive model under high-rate assumptions. The main advantage of this scheme compared to state-of-the-art training-based coders is its flexibility. The scheme can adapt in real time to any particular rate and has a computational complexity independent of the rate. Experiments indicate that, compared with a non-scalable conventional fixed-rate code-excited linear predictive (CELP) coding scheme, our real time scalable coder with scalar quantization performs at least as well in the constrained entropy case, and has nearly identical performance for the constrained resolution case.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2007. 535-539 p.
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-36116DOI: 10.1109/ACSSC.2007.4487270ISI: 000257172900101Scopus ID: 2-s2.0-50249148999OAI: oai:DiVA.org:kth-36116DiVA: diva2:430573
Conference
41st Asilomar Conference on Signals, Systems and Computers Pacific Grove, CA, NOV 04-07, 2007
Note
QC 20110711Available from: 2011-07-11 Created: 2011-07-08 Last updated: 2011-07-11Bibliographically approved

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CiteExportLink to record
Permanent link

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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