Multi-variate block polar quantization and an application to audio
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 (Refereed)
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.
, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, ISSN 1520-6149 ; 4
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-44757ISI: 000222179500050ScopusID: 2-s2.0-4544236359OAI: oai:DiVA.org:kth-44757DiVA: diva2:451368
IEEE International Conference on Acoustics, Speech, and Signal Processing Location: Montreal, CANADA Date: MAY 17-21, 2004
QC 201110252011-10-252011-10-252011-11-02Bibliographically approved