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WO2000038176A3 - Method and arrangement for finding an optimal reconstruction point - Google Patents

Method and arrangement for finding an optimal reconstruction point Download PDF

Info

Publication number
WO2000038176A3
WO2000038176A3 PCT/SE1999/002404 SE9902404W WO0038176A3 WO 2000038176 A3 WO2000038176 A3 WO 2000038176A3 SE 9902404 W SE9902404 W SE 9902404W WO 0038176 A3 WO0038176 A3 WO 0038176A3
Authority
WO
WIPO (PCT)
Prior art keywords
reconstruction
finding
reconstruction point
arrangement
point
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE1999/002404
Other languages
French (fr)
Other versions
WO2000038176A2 (en
Inventor
Morgan Lindqvist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to EP99964900A priority Critical patent/EP1141944A2/en
Priority to AU30930/00A priority patent/AU3093000A/en
Priority to CA002356152A priority patent/CA2356152A1/en
Priority to JP2000590161A priority patent/JP2002533962A/en
Publication of WO2000038176A2 publication Critical patent/WO2000038176A2/en
Publication of WO2000038176A3 publication Critical patent/WO2000038176A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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.
PCT/SE1999/002404 1998-12-21 1999-12-17 Method and arrangement for finding an optimal reconstruction point Ceased WO2000038176A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99964900A EP1141944A2 (en) 1998-12-21 1999-12-17 Method 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
JP2000590161A JP2002533962A (en) 1998-12-21 1999-12-17 Method and apparatus for detecting the optimal playback point

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9804455-5 1998-12-21
SE9804455A SE9804455L (en) 1998-12-21 1998-12-21 Procedure and arrangement for finding an optimal reconstruction point

Publications (2)

Publication Number Publication Date
WO2000038176A2 WO2000038176A2 (en) 2000-06-29
WO2000038176A3 true WO2000038176A3 (en) 2000-10-19

Family

ID=20413781

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/002404 Ceased WO2000038176A2 (en) 1998-12-21 1999-12-17 Method 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)

Citations (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
US5487128A (en) * 1991-02-26 1996-01-23 Nec Corporation Speech parameter coding method and appparatus

Patent Citations (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
US5487128A (en) * 1991-02-26 1996-01-23 Nec Corporation Speech parameter coding method and appparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
K.W. CHAN AND K.L. CHAN: "Multi-reference neighborhood search for vector quantization by self-organized featured map", IMAGE PROCESSING AND APPLICATIONS 1995, FIFTH INTERNATIONAL..., 1995, pages 579 - 583, XP001029062 *
N. NAJA, J.M. BOUCHER AND S. SOUDI: "Fast LSp vector quantization algorithms comparison", IEEE ELECTROTECHNICAL CONFERENCE, vol. 3, April 1994 (1994-04-01), pages 1127 - 1130, XP010130704 *

Also Published As

Publication number Publication date
SE9804455L (en) 2000-06-22
EP1141944A2 (en) 2001-10-10
WO2000038176A2 (en) 2000-06-29
SE9804455D0 (en) 1998-12-21
AU3093000A (en) 2000-07-12
JP2002533962A (en) 2002-10-08
CA2356152A1 (en) 2000-06-29

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