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SE9804455L - Procedure and arrangement for finding an optimal reconstruction point - Google Patents

Procedure and arrangement for finding an optimal reconstruction point

Info

Publication number
SE9804455L
SE9804455L SE9804455A SE9804455A SE9804455L SE 9804455 L SE9804455 L SE 9804455L SE 9804455 A SE9804455 A SE 9804455A SE 9804455 A SE9804455 A SE 9804455A SE 9804455 L SE9804455 L SE 9804455L
Authority
SE
Sweden
Prior art keywords
reconstruction
finding
reconstruction point
procedure
arrangement
Prior art date
Application number
SE9804455A
Other languages
Swedish (sv)
Other versions
SE9804455D0 (en
Inventor
Morgan Lindqvist
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9804455A priority Critical patent/SE9804455L/en
Publication of SE9804455D0 publication Critical patent/SE9804455D0/en
Priority to AU30930/00A priority patent/AU3093000A/en
Priority to CA002356152A priority patent/CA2356152A1/en
Priority to EP99964900A priority patent/EP1141944A2/en
Priority to PCT/SE1999/002404 priority patent/WO2000038176A2/en
Priority to JP2000590161A priority patent/JP2002533962A/en
Publication of SE9804455L publication Critical patent/SE9804455L/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

To reduce the complexity of finding reconstruction points in connection with vector quantization, a set of reconstruction points close to a predicted reconstruction point is selected, whereupon a distortion measure is calculated for all the reconstruction points of the selected set, and that reconstruction point that gives the smallest distortion, is chosen as the optimal reconstruction point. Since only a small number of reconstruction points has to be searched, the complexity of the search is significantly reduced.
SE9804455A 1998-12-21 1998-12-21 Procedure and arrangement for finding an optimal reconstruction point SE9804455L (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9804455A SE9804455L (en) 1998-12-21 1998-12-21 Procedure and arrangement for finding an optimal reconstruction point
AU30930/00A AU3093000A (en) 1998-12-21 1999-12-17 Method and arrangement for finding an optimal reconstruction point
CA002356152A CA2356152A1 (en) 1998-12-21 1999-12-17 Method and arrangement for finding an optimal reconstruction point
EP99964900A EP1141944A2 (en) 1998-12-21 1999-12-17 Method and arrangement for finding an optimal reconstruction point
PCT/SE1999/002404 WO2000038176A2 (en) 1998-12-21 1999-12-17 Method and arrangement for finding an optimal reconstruction point
JP2000590161A JP2002533962A (en) 1998-12-21 1999-12-17 Method and apparatus for detecting the optimal playback point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804455A SE9804455L (en) 1998-12-21 1998-12-21 Procedure and arrangement for finding an optimal reconstruction point

Publications (2)

Publication Number Publication Date
SE9804455D0 SE9804455D0 (en) 1998-12-21
SE9804455L true SE9804455L (en) 2000-06-22

Family

ID=20413781

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804455A SE9804455L (en) 1998-12-21 1998-12-21 Procedure and arrangement for finding an optimal reconstruction point

Country Status (6)

Country Link
EP (1) EP1141944A2 (en)
JP (1) JP2002533962A (en)
AU (1) AU3093000A (en)
CA (1) CA2356152A1 (en)
SE (1) SE9804455L (en)
WO (1) WO2000038176A2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670851A (en) * 1984-01-09 1987-06-02 Mitsubishi Denki Kabushiki Kaisha Vector quantizer
US5077798A (en) * 1988-09-28 1991-12-31 Hitachi, Ltd. Method and system for voice coding based on vector quantization
JP3151874B2 (en) * 1991-02-26 2001-04-03 日本電気株式会社 Voice parameter coding method and apparatus

Also Published As

Publication number Publication date
CA2356152A1 (en) 2000-06-29
SE9804455D0 (en) 1998-12-21
WO2000038176A2 (en) 2000-06-29
EP1141944A2 (en) 2001-10-10
JP2002533962A (en) 2002-10-08
WO2000038176A3 (en) 2000-10-19
AU3093000A (en) 2000-07-12

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Legal Events

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