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Multi-variate block polar quantization and an application to audio
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.
2004 (English)In: 2004 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL IV, PROCEEDINGS: AUDIO AND ELECTROACOUSTICS SIGNAL PROCESSING FOR COMMUNICATIONS, NEW YORK: IEEE , 2004, 197-200 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this article we introduce multi-variate block polar quantization (MBPQ). MBPQ minimizes a weighted distortion for a set of complex variables representing one block of a signal under a resolution constraint for the entire block. MBPQ allows for different probability distributions in different dimensions of the set of complex variables. It outperforms an earlier introduced block polar quantizer and unrestricted polar quantization (UPQ) both for Gaussian complex variables and for sinusoids found from audio data. In the case of audio data we found a performance gain of about 2.5 dB over the best performing conventional resolution-constrained polar quantization (UPQ).

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2004. 197-200 p.
Series
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, ISSN 1520-6149 ; 4
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-44757ISI: 000222179500050Scopus ID: 2-s2.0-4544236359OAI: oai:DiVA.org:kth-44757DiVA: diva2:451368
Conference
IEEE International Conference on Acoustics, Speech, and Signal Processing Location: Montreal, CANADA Date: MAY 17-21, 2004
Note
QC 20111025Available from: 2011-10-25 Created: 2011-10-25 Last updated: 2011-11-02Bibliographically approved

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Pobloth, HaraldVafin, RenatKleijn, W. Bastiaan
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CiteExportLink to record
Permanent link

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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