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Jointly optimal quantization of parameters in sinusoidal audio coding
KTH, School of Electrical Engineering (EES), Sound and Image Processing.
KTH, School of Electrical Engineering (EES), Sound and Image Processing.
2005 (English)In: 2005 WORKSHOP ON APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS, 2005, 247-250 p.Conference paper, Published paper (Refereed)
Abstract [en]

[it this paper, we present new methods for jointly optimal scalar quantization of parameters in sinusoidal audio coding. The sinusoidal amplitudes, frequencies, and phases used to represent (the tonal component of) an audio signal are quantized Such as to minimize a single-letter perceptual distortion measure under a given bit-rate constraint. The asymptotically optimal scalar quantizers are derived analytically using high-rate theory. We present different practical methods, where quantization accuracy of sonic parameters is made dependent on quantized values of other parameters'. The choice of method depends on the availability of the frequency-masking threshold, defining the perceptual importance of the individual sinusoids, at the decoder. The high performance of our quantizers is demonstrated by means of a listening test.

Place, publisher, year, edition, pages
2005. 247-250 p.
Series
IEEE International Integrated Reliability Workshop Final Report, ISSN 1930-8841
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-36138DOI: 10.1109/ASPAA.2005.1540216ISI: 000236204100063Scopus ID: 2-s2.0-33749062201OAI: oai:DiVA.org:kth-36138DiVA: diva2:430490
Conference
Workshop on Applications of Sigbak Processing to Audio and Acoustics New Paltz, NY, OCT 16-19, 2005
Note
QC 20110711Available from: 2011-07-11 Created: 2011-07-08 Last updated: 2011-10-14Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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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