FI20010770A0 - Menetelmä pakatun audiosignaalin purkamiseksi - Google Patents

Menetelmä pakatun audiosignaalin purkamiseksi

Info

Publication number
FI20010770A0
FI20010770A0 FI20010770A FI20010770A FI20010770A0 FI 20010770 A0 FI20010770 A0 FI 20010770A0 FI 20010770 A FI20010770 A FI 20010770A FI 20010770 A FI20010770 A FI 20010770A FI 20010770 A0 FI20010770 A0 FI 20010770A0
Authority
FI
Finland
Prior art keywords
decompressing
audio signal
compressed audio
compressed
signal
Prior art date
Application number
FI20010770A
Other languages
English (en)
Swedish (sv)
Other versions
FI20010770A (fi
FI110729B (fi
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 FI20010770A priority Critical patent/FI110729B/fi
Publication of FI20010770A0 publication Critical patent/FI20010770A0/fi
Priority to US10/119,450 priority patent/US20020173969A1/en
Priority to EP02396050A priority patent/EP1249837A3/en
Publication of FI20010770A publication Critical patent/FI20010770A/fi
Application granted granted Critical
Publication of FI110729B publication Critical patent/FI110729B/fi

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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • 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
    • G10L19/0204—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 using subband decomposition
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B2020/10935—Digital recording or reproducing wherein a time constraint must be met
    • G11B2020/10953—Concurrent recording or playback of different streams or files
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FI20010770A 2001-04-11 2001-04-11 Menetelmä pakatun audiosignaalin purkamiseksi FI110729B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20010770A FI110729B (fi) 2001-04-11 2001-04-11 Menetelmä pakatun audiosignaalin purkamiseksi
US10/119,450 US20020173969A1 (en) 2001-04-11 2002-04-09 Method for decompressing a compressed audio signal
EP02396050A EP1249837A3 (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
FI20010770 2001-04-11
FI20010770A FI110729B (fi) 2001-04-11 2001-04-11 Menetelmä pakatun audiosignaalin purkamiseksi

Publications (3)

Publication Number Publication Date
FI20010770A0 true FI20010770A0 (fi) 2001-04-11
FI20010770A FI20010770A (fi) 2002-10-12
FI110729B FI110729B (fi) 2003-03-14

Family

ID=8560982

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20010770A FI110729B (fi) 2001-04-11 2001-04-11 Menetelmä pakatun audiosignaalin purkamiseksi

Country Status (3)

Country Link
US (1) US20020173969A1 (fi)
EP (1) EP1249837A3 (fi)
FI (1) FI110729B (fi)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100655894B1 (ko) 2004-05-06 2006-12-08 서울옵토디바이스주식회사 색온도 및 연색성이 우수한 파장변환 발광장치
KR100665299B1 (ko) 2004-06-10 2007-01-04 서울반도체 주식회사 발광물질
US20060143013A1 (en) * 2004-12-28 2006-06-29 Broadcom Corporation Method and system for playing audio at an accelerated rate using multiresolution analysis technique keeping pitch constant
US20060187770A1 (en) * 2005-02-23 2006-08-24 Broadcom Corporation Method and system for playing audio at a decelerated rate using multiresolution analysis technique keeping pitch constant
KR101258397B1 (ko) 2005-11-11 2013-04-30 서울반도체 주식회사 구리 알칼리토 실리케이트 혼성 결정 형광체
US7610195B2 (en) * 2006-06-01 2009-10-27 Nokia Corporation Decoding of predictively coded data using buffer adaptation
US9031851B2 (en) * 2007-09-20 2015-05-12 Lg Electronics Inc. Method and an apparatus for processing a signal
ES2654433T3 (es) 2008-07-11 2018-02-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificador de señal de audio, método para codificar una señal de audio y programa informático
EP2144230A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
MY154452A (en) 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
AU2009267477B2 (en) * 2008-07-11 2013-06-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method for encoding a symbol, method for decoding a symbol, method for transmitting a symbol from a transmitter to a receiver, encoder, decoder and system for transmitting a symbol from a transmitter to a receiver
CA2862715C (en) 2009-10-20 2017-10-17 Ralf Geiger Multi-mode audio codec and celp coding adapted therefore
EP2980795A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor
EP2980794A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and decoder using a frequency domain processor and a time domain processor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5583962A (en) * 1991-01-08 1996-12-10 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
JP3137805B2 (ja) * 1993-05-21 2001-02-26 三菱電機株式会社 音声符号化装置、音声復号化装置、音声後処理装置及びこれらの方法
JP3557674B2 (ja) * 1994-12-15 2004-08-25 ソニー株式会社 高能率符号化方法及び装置
FR2729024A1 (fr) * 1994-12-30 1996-07-05 Matra Communication Annuleur d'echo acoustique avec filtrage en sous-bandes
JPH1084284A (ja) * 1996-09-06 1998-03-31 Sony Corp 信号再生方法および装置
TW391092B (en) * 1996-12-27 2000-05-21 Hitachi Ltd Cellular mobile telephone apparatus and method for transmitting a response message to an caller
JPH1168576A (ja) * 1997-08-22 1999-03-09 Hitachi Ltd データ伸張装置
US6012025A (en) * 1998-01-28 2000-01-04 Nokia Mobile Phones Limited Audio coding method and apparatus using backward adaptive prediction
US6765930B1 (en) * 1998-12-11 2004-07-20 Sony Corporation Decoding apparatus and method, and providing medium
JP2000323993A (ja) * 1999-05-11 2000-11-24 Mitsubishi Electric Corp Ｍｐｅｇ１オーディオレイヤｉｉｉ復号処理装置およびコンピュータをｍｐｅｇ１オーディオレイヤｉｉｉ復号処理装置として機能させるためのプログラムを記録したコンピュータ読取可能な記録媒体
US6842735B1 (en) * 1999-12-17 2005-01-11 Interval Research Corporation Time-scale modification of data-compressed audio information

Also Published As

Publication number Publication date
FI20010770A (fi) 2002-10-12
EP1249837A2 (en) 2002-10-16
EP1249837A3 (en) 2006-10-18
FI110729B (fi) 2003-03-14
US20020173969A1 (en) 2002-11-21

Similar Documents

Publication Publication Date Title
HK1053575A1 (en) Method for audio signal processing
EP2320661B8 (en) Coding distortion removal method
AU2001270575A1 (en) Improved huffman data compression method
PL361764A1 (en) Watermarking a compressed information signal
EE05587B1 (et) Meetod kollageenk„sna valmistamiseks
FI20010770A0 (fi) Menetelmä pakatun audiosignaalin purkamiseksi
EP1653627A4 (en) Audio signal band expansion device and method
AU2002358225A1 (en) Circuit and method for enhancing a stereo signal
AU2002357253A1 (en) Apparatus and method for demultiplexing a polarization-multiplexed signal
FI20010769A0 (fi) Menetelmä pakatun audiosignaalin purkamiseksi
EP1343354A4 (en) METHOD FOR MANUFACTURING A HIGH SPEAKER
EP1209664A3 (en) Method for determining compression factor for audio signal coding
AU2003269351A1 (en) Method for manufacturing a micro-electromechanical device and micro-electromechanical device obtained therewith
FR2830699B1 (fr) Circuit amplificateur audio
GB2375937B (en) Method of analysing a compressed signal for the presence or absence of information content
AUPR433901A0 (en) High frequency signal construction method
AU2002226550A1 (en) A method of data compression
FI20000523A0 (fi) Menetelmä audiosignaalin korjaamiseksi
AU2001284619A1 (en) A method, a device and a system for compressing a musical and voice signal
GB0110614D0 (en) Audio transducer
GB0100029D0 (en) Method for sound signal summation
AU2002310656A1 (en) Method for extracting audio signal parameters and a coder using said method
AU2002341019A1 (en) Device for amplifying a high frequency signal
AU2002344278A1 (en) Method for extracting the fundamental frequency of a sound signal
GB2367460B (en) Improved huffman data compression method

Legal Events

Date Code Title Description
MA Patent expired