FI20010769A0 - Förfarande för uppackning av packad audiosignal - Google Patents

Förfarande för uppackning av packad audiosignal

Info

Publication number
FI20010769A0
FI20010769A0 FI20010769A FI20010769A FI20010769A0 FI 20010769 A0 FI20010769 A0 FI 20010769A0 FI 20010769 A FI20010769 A FI 20010769A FI 20010769 A FI20010769 A FI 20010769A FI 20010769 A0 FI20010769 A0 FI 20010769A0
Authority
FI
Finland
Prior art keywords
decompressing
audio signal
compressed audio
compressed
signal
Prior art date
Application number
FI20010769A
Other languages
English (en)
Finnish (fi)
Other versions
FI20010769A (sv
FI110373B (sv
Inventor
Juha Ojanperae
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI20010769A priority Critical patent/FI110373B/sv
Publication of FI20010769A0 publication Critical patent/FI20010769A0/sv
Priority to US10/119,476 priority patent/US20030009328A1/en
Priority to EP20020396049 priority patent/EP1249830A1/en
Publication of FI20010769A publication Critical patent/FI20010769A/sv
Application granted granted Critical
Publication of FI110373B publication Critical patent/FI110373B/sv

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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3066—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction by means of a mask or a bit-map
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
    • H03M7/425—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory for the decoding process only

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FI20010769A 2001-04-11 2001-04-11 Förfarande för uppackning av packad audiosignal FI110373B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20010769A FI110373B (sv) 2001-04-11 2001-04-11 Förfarande för uppackning av packad audiosignal
US10/119,476 US20030009328A1 (en) 2001-04-11 2002-04-09 Method for decompressing a compressed audio signal
EP20020396049 EP1249830A1 (en) 2001-04-11 2002-04-11 A method for decompressing a compressed audio signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20010769A FI110373B (sv) 2001-04-11 2001-04-11 Förfarande för uppackning av packad audiosignal
FI20010769 2001-04-11

Publications (3)

Publication Number Publication Date
FI20010769A0 true FI20010769A0 (sv) 2001-04-11
FI20010769A FI20010769A (sv) 2002-10-12
FI110373B FI110373B (sv) 2002-12-31

Family

ID=8560981

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20010769A FI110373B (sv) 2001-04-11 2001-04-11 Förfarande för uppackning av packad audiosignal

Country Status (3)

Country Link
US (1) US20030009328A1 (sv)
EP (1) EP1249830A1 (sv)
FI (1) FI110373B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7610195B2 (en) 2006-06-01 2009-10-27 Nokia Corporation Decoding of predictively coded data using buffer adaptation
JP4707198B2 (ja) * 2006-10-19 2011-06-22 富士通株式会社 情報検索プログラム、該プログラムを記録した記録媒体、情報検索方法、および情報検索装置
RU2493651C2 (ru) * 2008-07-11 2013-09-20 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Способ кодирования символа, способ декодирования символа, способ передачи символа от передатчика к приемнику, кодер, декодер и система для передачи символа от передатчика к приемнику
US9858925B2 (en) * 2009-06-05 2018-01-02 Apple Inc. Using context information to facilitate processing of commands in a virtual assistant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481739A (en) * 1993-06-23 1996-01-02 Apple Computer, Inc. Vector quantization using thresholds
JPH0969781A (ja) * 1995-08-31 1997-03-11 Nippon Steel Corp オーディオデータ符号化装置
US5774837A (en) * 1995-09-13 1998-06-30 Voxware, Inc. Speech coding system and method using voicing probability determination
US5621674A (en) * 1996-02-15 1997-04-15 Intel Corporation Computer implemented method for compressing 24 bit pixels to 16 bit pixels
US5832288A (en) * 1996-10-18 1998-11-03 Samsung Electronics Co., Ltd. Element-select mechanism for a vector processor
US6008745A (en) * 1998-02-17 1999-12-28 Sun Microsystems, Inc. Variable length decoding using lookup tables
US6891976B2 (en) * 2002-03-12 2005-05-10 Intel Corporation Method to decode variable length codes with regular bit pattern prefixes

Also Published As

Publication number Publication date
US20030009328A1 (en) 2003-01-09
FI20010769A (sv) 2002-10-12
FI110373B (sv) 2002-12-31
EP1249830A1 (en) 2002-10-16

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Legal Events

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MA Patent expired