WO1998057436A3 - Source coding enhancement using spectral-band replication - Google Patents

Source coding enhancement using spectral-band replication Download PDF

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Publication number
WO1998057436A3
WO1998057436A3 PCT/IB1998/000893 IB9800893W WO9857436A3 WO 1998057436 A3 WO1998057436 A3 WO 1998057436A3 IB 9800893 W IB9800893 W IB 9800893W WO 9857436 A3 WO9857436 A3 WO 9857436A3
Authority
WO
WIPO (PCT)
Prior art keywords
spectral
codec
source coding
band replication
combination
Prior art date
Application number
PCT/IB1998/000893
Other languages
French (fr)
Other versions
WO1998057436A2 (en
Inventor
Lars Gustaf Liljeryd
Per Rune Albin Ekstrand
Lars Fredrik Henn
Hans Magnus Kristofe Kjoerling
Original Assignee
Lars Gustaf Liljeryd
Per Rune Albin Ekstrand
Lars Fredrik Henn
Hans Magnus Kristofe Kjoerling
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
Priority claimed from SE9702213A external-priority patent/SE9702213D0/en
Priority claimed from SE9704634A external-priority patent/SE9704634D0/en
Application filed by Lars Gustaf Liljeryd, Per Rune Albin Ekstrand, Lars Fredrik Henn, Hans Magnus Kristofe Kjoerling filed Critical Lars Gustaf Liljeryd
Priority to AT98921697T priority Critical patent/ATE257987T1/en
Priority to US09/230,799 priority patent/US6680972B1/en
Priority to AU74465/98A priority patent/AU7446598A/en
Priority to EP98921697A priority patent/EP0940015B1/en
Priority to JP50196299A priority patent/JP3871347B2/en
Priority to BRPI9805989-0A priority patent/BR9805989B1/en
Priority to DE69821089T priority patent/DE69821089T2/en
Publication of WO1998057436A2 publication Critical patent/WO1998057436A2/en
Publication of WO1998057436A3 publication Critical patent/WO1998057436A3/en
Priority to HK01101733A priority patent/HK1030843A1/en
Priority to US10/680,224 priority patent/US6925116B2/en
Priority to US10/681,105 priority patent/US7328162B2/en
Priority to US10/682,030 priority patent/US7283955B2/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Abstract

The present invention proposes a new method and apparatus for the enhancement of source coding systems. The invention employs bandwidth reduction (101) prior to or in the encoder (103), followed by spectral-band replication (105) at the decoder (107). This is accomplished by the use of new transposition methods, in combination with spectral envelope adjustments. Reduced bitrate at a given perceptual quality or an improved perceptual quality at a given bitrate is offered. The invention is preferably integrated in a hardware or software codec, but can also be implemented as a separate processor in combination with a codec. The invention offers substantial improvements practically independent of codec type and technological progress.
PCT/IB1998/000893 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication WO1998057436A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
AT98921697T ATE257987T1 (en) 1997-06-10 1998-06-09 IMPROVEMENT OF SOURCE ENCODING USING SPECTRAL BAND REPLICATION
US09/230,799 US6680972B1 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
AU74465/98A AU7446598A (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
EP98921697A EP0940015B1 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
JP50196299A JP3871347B2 (en) 1997-06-10 1998-06-09 Enhancing Primitive Coding Using Spectral Band Replication
BRPI9805989-0A BR9805989B1 (en) 1997-06-10 1998-06-09 method and apparatus for decoding a coded signal.
DE69821089T DE69821089T2 (en) 1997-06-10 1998-06-09 IMPROVE SOURCE ENCODING USING SPECTRAL BAND REPLICATION
HK01101733A HK1030843A1 (en) 1997-06-10 2001-03-12 Source coding enhancement using spectral-band replication.
US10/680,224 US6925116B2 (en) 1997-06-10 2003-10-08 Source coding enhancement using spectral-band replication
US10/681,105 US7328162B2 (en) 1997-06-10 2003-10-09 Source coding enhancement using spectral-band replication
US10/682,030 US7283955B2 (en) 1997-06-10 2003-10-10 Source coding enhancement using spectral-band replication

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE9702213A SE9702213D0 (en) 1997-06-10 1997-06-10 A method and a device for bit-rate reduction using synthetic bandwidth expansion
SE9704634A SE9704634D0 (en) 1997-12-12 1997-12-12 Synthetic bandwidth expansion of audio signals
SE9800268-6 1998-01-30
SE9800268A SE512719C2 (en) 1997-06-10 1998-01-30 A method and apparatus for reducing data flow based on harmonic bandwidth expansion
SE9702213-1 1998-01-30
SE9704634-6 1998-01-30

Related Child Applications (5)

Application Number Title Priority Date Filing Date
US09230799 A-371-Of-International 1998-06-09
US09/230,799 A-371-Of-International US6680972B1 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
US10/680,224 Division US6925116B2 (en) 1997-06-10 2003-10-08 Source coding enhancement using spectral-band replication
US10/681,105 Division US7328162B2 (en) 1997-06-10 2003-10-09 Source coding enhancement using spectral-band replication
US10/682,030 Division US7283955B2 (en) 1997-06-10 2003-10-10 Source coding enhancement using spectral-band replication

Publications (2)

Publication Number Publication Date
WO1998057436A2 WO1998057436A2 (en) 1998-12-17
WO1998057436A3 true WO1998057436A3 (en) 2000-02-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/000893 WO1998057436A2 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication

Country Status (14)

Country Link
US (4) US6680972B1 (en)
EP (2) EP1367566B1 (en)
JP (2) JP3871347B2 (en)
CN (2) CN1206816C (en)
AT (2) ATE303679T1 (en)
AU (1) AU7446598A (en)
BR (1) BR9805989B1 (en)
DE (2) DE69821089T2 (en)
DK (2) DK1367566T3 (en)
ES (2) ES2247466T3 (en)
HK (2) HK1030843A1 (en)
PT (2) PT1367566E (en)
SE (1) SE512719C2 (en)
WO (1) WO1998057436A2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100917464B1 (en) * 2003-03-07 2009-09-14 삼성전자주식회사 Method and apparatus for encoding/decoding digital data using bandwidth extension technology
KR100923300B1 (en) * 2003-03-22 2009-10-23 삼성전자주식회사 Method and apparatus for encoding/decoding audio data using bandwidth extension technology
KR100923301B1 (en) * 2003-03-22 2009-10-23 삼성전자주식회사 Method and apparatus for encoding/decoding audio data using bandwidth extension technology
CN101505144B (en) * 2002-09-18 2012-05-16 瑞典商编码技术股份公司 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
US9218818B2 (en) 2001-07-10 2015-12-22 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US9431020B2 (en) 2001-11-29 2016-08-30 Dolby International Ab Methods for improving high frequency reconstruction

Families Citing this family (408)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879465B1 (en) * 1996-11-07 2005-11-16 Koninklijke Philips Electronics N.V. Data processing of a bitstream signal
JP4193243B2 (en) * 1998-10-07 2008-12-10 ソニー株式会社 Acoustic signal encoding method and apparatus, acoustic signal decoding method and apparatus, and recording medium
SE9903552D0 (en) * 1999-01-27 1999-10-01 Lars Liljeryd Efficient spectral envelope coding using dynamic scalefactor grouping and time / frequency switching
SE9903553D0 (en) 1999-01-27 1999-10-01 Lars Liljeryd Enhancing conceptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US7085377B1 (en) * 1999-07-30 2006-08-01 Lucent Technologies Inc. Information delivery in a multi-stream digital broadcasting system
US6978236B1 (en) 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
AU2820701A (en) * 2000-01-18 2001-07-31 National Research Council Of Canada Parallel correlator archtitecture
FI119576B (en) * 2000-03-07 2008-12-31 Nokia Corp Speech processing device and procedure for speech processing, as well as a digital radio telephone
CN1154975C (en) * 2000-03-15 2004-06-23 皇家菲利浦电子有限公司 Laguerre fonction for audio coding
FR2807897B1 (en) * 2000-04-18 2003-07-18 France Telecom SPECTRAL ENRICHMENT METHOD AND DEVICE
US7742927B2 (en) 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
US7330814B2 (en) * 2000-05-22 2008-02-12 Texas Instruments Incorporated Wideband speech coding with modulated noise highband excitation system and method
SE0001926D0 (en) 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation / folding in the subband domain
US6718300B1 (en) * 2000-06-02 2004-04-06 Agere Systems Inc. Method and apparatus for reducing aliasing in cascaded filter banks
JP3538122B2 (en) * 2000-06-14 2004-06-14 株式会社ケンウッド Frequency interpolation device, frequency interpolation method, and recording medium
JP3576935B2 (en) * 2000-07-21 2004-10-13 株式会社ケンウッド Frequency thinning device, frequency thinning method and recording medium
JP3576941B2 (en) * 2000-08-25 2004-10-13 株式会社ケンウッド Frequency thinning device, frequency thinning method and recording medium
US20020049586A1 (en) * 2000-09-11 2002-04-25 Kousuke Nishio Audio encoder, audio decoder, and broadcasting system
SE0004163D0 (en) * 2000-11-14 2000-11-14 Coding Technologies Sweden Ab Enhancing perceptual performance or high frequency reconstruction coding methods by adaptive filtering
SE0004187D0 (en) 2000-11-15 2000-11-15 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
SE0004818D0 (en) 2000-12-22 2000-12-22 Coding Technologies Sweden Ab Enhancing source coding systems by adaptive transposition
US20020087315A1 (en) * 2000-12-29 2002-07-04 Lee Victor Wai Leung Computer-implemented multi-scanning language method and system
US6845170B2 (en) 2001-01-11 2005-01-18 Sony Corporation Watermark resistant to resizing and rotation
US20020128839A1 (en) * 2001-01-12 2002-09-12 Ulf Lindgren Speech bandwidth extension
KR100830857B1 (en) * 2001-01-19 2008-05-22 코닌클리케 필립스 일렉트로닉스 엔.브이. An audio transmission system, An audio receiver, A method of transmitting, A method of receiving, and A speech decoder
US7660424B2 (en) 2001-02-07 2010-02-09 Dolby Laboratories Licensing Corporation Audio channel spatial translation
FR2821475B1 (en) * 2001-02-23 2003-05-09 France Telecom METHOD AND DEVICE FOR SPECTRALLY RECONSTRUCTING MULTI-CHANNEL SIGNALS, ESPECIALLY STEREOPHONIC SIGNALS
FR2821476B1 (en) * 2001-02-23 2003-04-11 France Telecom METHOD FOR SPECTRAL RECONSTRUCTION OF AN AUDIO SIGNAL WITH INCOMPLETE SPECTRUM AND CORRESPONDING DEVICE
FR2821501B1 (en) * 2001-02-23 2004-07-16 France Telecom METHOD AND DEVICE FOR SPECTRAL RECONSTRUCTION OF AN INCOMPLETE SPECTRUM SIGNAL AND CODING / DECODING SYSTEM THEREOF
JP4008244B2 (en) * 2001-03-02 2007-11-14 松下電器産業株式会社 Encoding device and decoding device
US7602936B2 (en) * 2001-03-08 2009-10-13 Sony Corporation Method to make wavelet watermarks resistant to affine transformations
US6865273B2 (en) * 2002-06-05 2005-03-08 Sony Corporation Method and apparatus to detect watermark that are resistant to resizing, rotation and translation
SE0101175D0 (en) * 2001-04-02 2001-04-02 Coding Technologies Sweden Ab Aliasing reduction using complex-exponential-modulated filter banks
AUPR433901A0 (en) 2001-04-10 2001-05-17 Lake Technology Limited High frequency signal construction method
US7711123B2 (en) * 2001-04-13 2010-05-04 Dolby Laboratories Licensing Corporation Segmenting audio signals into auditory events
US7400651B2 (en) 2001-06-29 2008-07-15 Kabushiki Kaisha Kenwood Device and method for interpolating frequency components of signal
US8605911B2 (en) 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
WO2003007480A1 (en) 2001-07-13 2003-01-23 Matsushita Electric Industrial Co., Ltd. Audio signal decoding device and audio signal encoding device
JP2003108197A (en) * 2001-07-13 2003-04-11 Matsushita Electric Ind Co Ltd Audio signal decoding device and audio signal encoding device
JP4012506B2 (en) * 2001-08-24 2007-11-21 株式会社ケンウッド Apparatus and method for adaptively interpolating frequency components of a signal
JP2005506584A (en) * 2001-10-25 2005-03-03 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Method for transmitting wideband audio signals over a reduced bandwidth transmission path
EP1440300B1 (en) 2001-11-02 2005-12-28 Matsushita Electric Industrial Co., Ltd. Encoding device, decoding device and audio data distribution system
DE10154932B4 (en) * 2001-11-08 2008-01-03 Grundig Multimedia B.V. Method for audio coding
JP3926726B2 (en) * 2001-11-14 2007-06-06 松下電器産業株式会社 Encoding device and decoding device
JP4308229B2 (en) * 2001-11-14 2009-08-05 パナソニック株式会社 Encoding device and decoding device
KR100935961B1 (en) * 2001-11-14 2010-01-08 파나소닉 주식회사 Encoding device and decoding device
US20030108108A1 (en) * 2001-11-15 2003-06-12 Takashi Katayama Decoder, decoding method, and program distribution medium therefor
US20040199383A1 (en) * 2001-11-16 2004-10-07 Yumiko Kato Speech encoder, speech decoder, speech endoding method, and speech decoding method
US7317811B2 (en) * 2001-11-28 2008-01-08 Sony Electronics Inc. Method to decode temporal watermarks in compressed video
US7433489B2 (en) * 2001-11-28 2008-10-07 Sony Electronics Inc. Method to ensure temporal synchronization and reduce complexity in the detection of temporal watermarks
JP4317355B2 (en) * 2001-11-30 2009-08-19 パナソニック株式会社 Encoding apparatus, encoding method, decoding apparatus, decoding method, and acoustic data distribution system
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
KR100949232B1 (en) 2002-01-30 2010-03-24 파나소닉 주식회사 Encoding device, decoding device and methods thereof
JP3751001B2 (en) * 2002-03-06 2006-03-01 株式会社東芝 Audio signal reproducing method and reproducing apparatus
EP1492292B1 (en) * 2002-03-20 2010-12-29 Dounaev, Igor Borisovich Methods and systems for digital data transmission
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
WO2003085644A1 (en) 2002-04-11 2003-10-16 Matsushita Electric Industrial Co., Ltd. Encoding device and decoding device
JP4296752B2 (en) 2002-05-07 2009-07-15 ソニー株式会社 Encoding method and apparatus, decoding method and apparatus, and program
US7447631B2 (en) 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US7921445B2 (en) * 2002-06-06 2011-04-05 International Business Machines Corporation Audio/video speedup system and method in a server-client streaming architecture
TWI288915B (en) * 2002-06-17 2007-10-21 Dolby Lab Licensing Corp Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
KR100462615B1 (en) 2002-07-11 2004-12-20 삼성전자주식회사 Audio decoding method recovering high frequency with small computation, and apparatus thereof
US7376280B2 (en) * 2002-07-14 2008-05-20 Apple Inc Video encoding and decoding
US7379956B2 (en) * 2002-07-14 2008-05-27 Apple Inc. Encoding and decoding data arrays
JP4227772B2 (en) * 2002-07-19 2009-02-18 日本電気株式会社 Audio decoding apparatus, decoding method, and program
KR100602975B1 (en) * 2002-07-19 2006-07-20 닛본 덴끼 가부시끼가이샤 Audio decoding apparatus and decoding method and computer-readable recording medium
JP4313993B2 (en) * 2002-07-19 2009-08-12 パナソニック株式会社 Audio decoding apparatus and audio decoding method
KR100723753B1 (en) * 2002-08-01 2007-05-30 마츠시타 덴끼 산교 가부시키가이샤 Audio decoding apparatus and audio decoding method based on spectral band replication
JP3861770B2 (en) * 2002-08-21 2006-12-20 ソニー株式会社 Signal encoding apparatus and method, signal decoding apparatus and method, program, and recording medium
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
JP3881943B2 (en) * 2002-09-06 2007-02-14 松下電器産業株式会社 Acoustic encoding apparatus and acoustic encoding method
TW564375B (en) * 2002-09-17 2003-12-01 Ind Tech Res Inst Amplitude phase shift information embedding and detecting method based on phase features
AU2006235813B2 (en) * 2002-09-18 2009-03-12 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
DE60303689T2 (en) * 2002-09-19 2006-10-19 Matsushita Electric Industrial Co., Ltd., Kadoma AUDIO DECODING DEVICE AND METHOD
US7191136B2 (en) * 2002-10-01 2007-03-13 Ibiquity Digital Corporation Efficient coding of high frequency signal information in a signal using a linear/non-linear prediction model based on a low pass baseband
KR100501930B1 (en) * 2002-11-29 2005-07-18 삼성전자주식회사 Audio decoding method recovering high frequency with small computation and apparatus thereof
JP4041385B2 (en) * 2002-11-29 2008-01-30 株式会社ケンウッド Signal interpolation device, signal interpolation method and program
AU2002953284A0 (en) * 2002-12-12 2003-01-02 Lake Technology Limited Digital multirate filtering
KR100524065B1 (en) * 2002-12-23 2005-10-26 삼성전자주식회사 Advanced method for encoding and/or decoding digital audio using time-frequency correlation and apparatus thereof
US20040252772A1 (en) * 2002-12-31 2004-12-16 Markku Renfors Filter bank based signal processing
TWI220753B (en) * 2003-01-20 2004-09-01 Mediatek Inc Method for determining quantization parameters
US7318027B2 (en) 2003-02-06 2008-01-08 Dolby Laboratories Licensing Corporation Conversion of synthesized spectral components for encoding and low-complexity transcoding
JP4380174B2 (en) * 2003-02-27 2009-12-09 沖電気工業株式会社 Band correction device
RU2244386C2 (en) * 2003-03-28 2005-01-10 Корпорация "Самсунг Электроникс" Method and device for recovering audio-signal high-frequency component
PL1621047T3 (en) * 2003-04-17 2007-09-28 Koninl Philips Electronics Nv Audio signal generation
ATE355590T1 (en) 2003-04-17 2006-03-15 Koninkl Philips Electronics Nv AUDIO SIGNAL SYNTHESIS
US7318035B2 (en) * 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
JP2005010621A (en) * 2003-06-20 2005-01-13 Matsushita Electric Ind Co Ltd Voice band expanding device and band expanding method
DE10328777A1 (en) 2003-06-25 2005-01-27 Coding Technologies Ab Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal
JP2005024756A (en) * 2003-06-30 2005-01-27 Toshiba Corp Decoding process circuit and mobile terminal device
ES2354427T3 (en) 2003-06-30 2011-03-14 Koninklijke Philips Electronics N.V. IMPROVEMENT OF THE DECODED AUDIO QUALITY THROUGH THE ADDITION OF NOISE.
FI118550B (en) * 2003-07-14 2007-12-14 Nokia Corp Enhanced excitation for higher frequency band coding in a codec utilizing band splitting based coding methods
US7082573B2 (en) 2003-07-30 2006-07-25 America Online, Inc. Method and system for managing digital assets
US7724827B2 (en) * 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US7844992B2 (en) * 2003-09-10 2010-11-30 Thomson Licensing Video on demand server system and method
US7844451B2 (en) * 2003-09-16 2010-11-30 Panasonic Corporation Spectrum coding/decoding apparatus and method for reducing distortion of two band spectrums
DE602004032587D1 (en) 2003-09-16 2011-06-16 Panasonic Corp Coding device and decoding device
JP4679049B2 (en) 2003-09-30 2011-04-27 パナソニック株式会社 Scalable decoding device
DE602004030594D1 (en) * 2003-10-07 2011-01-27 Panasonic Corp METHOD OF DECIDING THE TIME LIMIT FOR THE CODING OF THE SPECTRO-CASE AND FREQUENCY RESOLUTION
US7461003B1 (en) * 2003-10-22 2008-12-02 Tellabs Operations, Inc. Methods and apparatus for improving the quality of speech signals
US7949057B2 (en) * 2003-10-23 2011-05-24 Panasonic Corporation Spectrum coding apparatus, spectrum decoding apparatus, acoustic signal transmission apparatus, acoustic signal reception apparatus and methods thereof
KR101106026B1 (en) * 2003-10-30 2012-01-17 돌비 인터네셔널 에이비 Audio signal encoding or decoding
US7672838B1 (en) 2003-12-01 2010-03-02 The Trustees Of Columbia University In The City Of New York Systems and methods for speech recognition using frequency domain linear prediction polynomials to form temporal and spectral envelopes from frequency domain representations of signals
KR100587953B1 (en) * 2003-12-26 2006-06-08 한국전자통신연구원 Packet loss concealment apparatus for high-band in split-band wideband speech codec, and system for decoding bit-stream using the same
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
US8438026B2 (en) * 2004-02-18 2013-05-07 Nuance Communications, Inc. Method and system for generating training data for an automatic speech recognizer
WO2005104094A1 (en) 2004-04-23 2005-11-03 Matsushita Electric Industrial Co., Ltd. Coding equipment
RU2006137841A (en) * 2004-04-27 2008-05-10 Мацусита Электрик Индастриал Ко., Лтд. (Jp) SCALABLE CODING DEVICE, SCALABLE DECODING DEVICE AND METHOD FOR THIS
JP2007535773A (en) 2004-04-30 2007-12-06 ヒルクレスト・ラボラトリーズ・インコーポレイテッド Free space pointing device and pointing method
US8629836B2 (en) 2004-04-30 2014-01-14 Hillcrest Laboratories, Inc. 3D pointing devices with orientation compensation and improved usability
EP1744139B1 (en) 2004-05-14 2015-11-11 Panasonic Intellectual Property Corporation of America Decoding apparatus and method thereof
CN101656076B (en) * 2004-05-14 2013-01-23 松下电器产业株式会社 Audio encoding apparatus and method, communication terminals and base station apparatus
CN1954363B (en) 2004-05-19 2011-10-12 松下电器产业株式会社 Encoding device and method thereof
US8065139B2 (en) 2004-06-21 2011-11-22 Koninklijke Philips Electronics N.V. Method of audio encoding
GB2416285A (en) 2004-07-14 2006-01-18 British Broadcasting Corp Transmission of a data signal in an audio signal
KR100608062B1 (en) * 2004-08-04 2006-08-02 삼성전자주식회사 Method and apparatus for decoding high frequency of audio data
WO2006018748A1 (en) * 2004-08-17 2006-02-23 Koninklijke Philips Electronics N.V. Scalable audio coding
KR100640893B1 (en) * 2004-09-07 2006-11-02 엘지전자 주식회사 Baseband modem and mobile terminal for voice recognition
US7860721B2 (en) * 2004-09-17 2010-12-28 Panasonic Corporation Audio encoding device, decoding device, and method capable of flexibly adjusting the optimal trade-off between a code rate and sound quality
US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
US7620675B1 (en) * 2004-09-23 2009-11-17 Texas Instruments Incorporated Image and audio transform methods
JP4618634B2 (en) * 2004-10-07 2011-01-26 Ｋｄｄｉ株式会社 Compressed audio data processing method
JP4815780B2 (en) * 2004-10-20 2011-11-16 ヤマハ株式会社 Oversampling system, decoding LSI, and oversampling method
US7555081B2 (en) * 2004-10-29 2009-06-30 Harman International Industries, Incorporated Log-sampled filter system
US8255231B2 (en) 2004-11-02 2012-08-28 Koninklijke Philips Electronics N.V. Encoding and decoding of audio signals using complex-valued filter banks
SE0402652D0 (en) 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi-channel reconstruction
US7769584B2 (en) 2004-11-05 2010-08-03 Panasonic Corporation Encoder, decoder, encoding method, and decoding method
US8137195B2 (en) 2004-11-23 2012-03-20 Hillcrest Laboratories, Inc. Semantic gaming and application transformation
KR100657916B1 (en) * 2004-12-01 2006-12-14 삼성전자주식회사 Apparatus and method for processing audio signal using correlation between bands
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
EP1840874B1 (en) * 2005-01-11 2019-04-10 NEC Corporation Audio encoding device, audio encoding method, and audio encoding program
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
DE602006021402D1 (en) * 2005-02-24 2011-06-01 Panasonic Corp DATA PLAYBACK DEVICE
JP4761506B2 (en) * 2005-03-01 2011-08-31 国立大学法人北陸先端科学技術大学院大学 Audio processing method and apparatus, program, and audio system
JP4645241B2 (en) * 2005-03-10 2011-03-09 ヤマハ株式会社 Voice processing apparatus and program
KR100707186B1 (en) * 2005-03-24 2007-04-13 삼성전자주식회사 Audio coding and decoding apparatus and method, and recoding medium thereof
US8078474B2 (en) * 2005-04-01 2011-12-13 Qualcomm Incorporated Systems, methods, and apparatus for highband time warping
KR100818268B1 (en) * 2005-04-14 2008-04-02 삼성전자주식회사 Apparatus and method for audio encoding/decoding with scalability
US7627481B1 (en) 2005-04-19 2009-12-01 Apple Inc. Adapting masking thresholds for encoding a low frequency transient signal in audio data
US8086451B2 (en) 2005-04-20 2011-12-27 Qnx Software Systems Co. System for improving speech intelligibility through high frequency compression
US7813931B2 (en) * 2005-04-20 2010-10-12 QNX Software Systems, Co. System for improving speech quality and intelligibility with bandwidth compression/expansion
US8249861B2 (en) * 2005-04-20 2012-08-21 Qnx Software Systems Limited High frequency compression integration
PL1875463T3 (en) 2005-04-22 2019-03-29 Qualcomm Incorporated Systems, methods, and apparatus for gain factor smoothing
DK1742509T3 (en) 2005-07-08 2013-11-04 Oticon As A system and method for eliminating feedback and noise in a hearing aid
DE102005032724B4 (en) * 2005-07-13 2009-10-08 Siemens Ag Method and device for artificially expanding the bandwidth of speech signals
KR100803205B1 (en) 2005-07-15 2008-02-14 삼성전자주식회사 Method and apparatus for encoding/decoding audio signal
US7630882B2 (en) * 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
US7562021B2 (en) * 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US20070030923A1 (en) * 2005-08-02 2007-02-08 Xiaoming Yu High accuracy non data-aided frequency estimator for M-ary phase shift keying modulation
US8599925B2 (en) * 2005-08-12 2013-12-03 Microsoft Corporation Efficient coding and decoding of transform blocks
JP4715385B2 (en) * 2005-08-19 2011-07-06 株式会社ケンウッド Interpolation device, audio playback device, interpolation method, and interpolation program
WO2007028407A1 (en) 2005-09-06 2007-03-15 Nero Ag Method for signing a data package and signing apparatus
JP4627548B2 (en) * 2005-09-08 2011-02-09 パイオニア株式会社 Bandwidth expansion device, bandwidth expansion method, and bandwidth expansion program
BRPI0616624A2 (en) 2005-09-30 2011-06-28 Matsushita Electric Ind Co Ltd speech coding apparatus and speech coding method
US7953605B2 (en) * 2005-10-07 2011-05-31 Deepen Sinha Method and apparatus for audio encoding and decoding using wideband psychoacoustic modeling and bandwidth extension
US20070118361A1 (en) * 2005-10-07 2007-05-24 Deepen Sinha Window apparatus and method
CN101273403B (en) * 2005-10-14 2012-01-18 松下电器产业株式会社 Scalable encoding apparatus, scalable decoding apparatus, and methods of them
KR100739180B1 (en) * 2005-10-20 2007-07-13 엘지전자 주식회사 Apparatus and method for transmitting/receiving multimedia data of mobile communication terminal
BRPI0520729B1 (en) * 2005-11-04 2019-04-02 Nokia Technologies Oy METHOD FOR CODING AND DECODING AUDIO SIGNALS, CODER FOR CODING AND DECODER FOR DECODING AUDIO SIGNS AND SYSTEM FOR DIGITAL AUDIO COMPRESSION.
JP5034228B2 (en) * 2005-11-30 2012-09-26 株式会社Ｊｖｃケンウッド Interpolation device, sound reproduction device, interpolation method and interpolation program
WO2007063913A1 (en) * 2005-11-30 2007-06-07 Matsushita Electric Industrial Co., Ltd. Subband coding apparatus and method of coding subband
US7489111B2 (en) 2005-12-08 2009-02-10 Robert W. Wise Holstered cordless power tool
US7536299B2 (en) * 2005-12-19 2009-05-19 Dolby Laboratories Licensing Corporation Correlating and decorrelating transforms for multiple description coding systems
TWI311856B (en) * 2006-01-04 2009-07-01 Quanta Comp Inc Synthesis subband filtering method and apparatus
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
KR100739786B1 (en) * 2006-01-20 2007-07-13 삼성전자주식회사 Multi-channel digital amplifier and method for processing thereof
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
WO2007098258A1 (en) * 2006-02-24 2007-08-30 Neural Audio Corporation Audio codec conditioning system and method
US7590523B2 (en) * 2006-03-20 2009-09-15 Mindspeed Technologies, Inc. Speech post-processing using MDCT coefficients
CA2646961C (en) * 2006-03-28 2013-09-03 Sascha Disch Enhanced method for signal shaping in multi-channel audio reconstruction
US20090248407A1 (en) * 2006-03-31 2009-10-01 Panasonic Corporation Sound encoder, sound decoder, and their methods
US8392176B2 (en) * 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
JP5190359B2 (en) * 2006-05-10 2013-04-24 パナソニック株式会社 Encoding apparatus and encoding method
JP2007310298A (en) * 2006-05-22 2007-11-29 Oki Electric Ind Co Ltd Out-of-band signal creation apparatus and frequency band spreading apparatus
US9159333B2 (en) 2006-06-21 2015-10-13 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
KR101390188B1 (en) * 2006-06-21 2014-04-30 삼성전자주식회사 Method and apparatus for encoding and decoding adaptive high frequency band
US8010352B2 (en) 2006-06-21 2011-08-30 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
CN101479790B (en) * 2006-06-29 2012-05-23 Nxp股份有限公司 Noise synthesis
ES2712457T3 (en) * 2006-07-04 2019-05-13 Dolby Int Ab Filter system comprising a filter converter and a filter compressor and method for operating the filter system
EP1881485A1 (en) 2006-07-18 2008-01-23 Deutsche Thomson-Brandt Gmbh Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal
WO2008022181A2 (en) * 2006-08-15 2008-02-21 Broadcom Corporation Updating of decoder states after packet loss concealment
JP2008066851A (en) * 2006-09-05 2008-03-21 Sony Corp Unit and method for information processing, recording medium, and program
CN101140759B (en) * 2006-09-08 2010-05-12 华为技术有限公司 Band-width spreading method and system for voice or audio signal
US8126721B2 (en) * 2006-10-18 2012-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8417532B2 (en) * 2006-10-18 2013-04-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8041578B2 (en) * 2006-10-18 2011-10-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8295507B2 (en) * 2006-11-09 2012-10-23 Sony Corporation Frequency band extending apparatus, frequency band extending method, player apparatus, playing method, program and recording medium
JP5141180B2 (en) * 2006-11-09 2013-02-13 ソニー株式会社 Frequency band expanding apparatus, frequency band expanding method, reproducing apparatus and reproducing method, program, and recording medium
JP5103880B2 (en) * 2006-11-24 2012-12-19 富士通株式会社 Decoding device and decoding method
JP4967618B2 (en) 2006-11-24 2012-07-04 富士通株式会社 Decoding device and decoding method
EP1927981B1 (en) * 2006-12-01 2013-02-20 Nuance Communications, Inc. Spectral refinement of audio signals
WO2008084688A1 (en) * 2006-12-27 2008-07-17 Panasonic Corporation Encoding device, decoding device, and method thereof
KR101379263B1 (en) * 2007-01-12 2014-03-28 삼성전자주식회사 Method and apparatus for decoding bandwidth extension
EP1947644B1 (en) * 2007-01-18 2019-06-19 Nuance Communications, Inc. Method and apparatus for providing an acoustic signal with extended band-width
CA2623823A1 (en) * 2007-03-02 2008-09-02 Sean C. Carroll Non-orthogonal frequency-division multiplexed communication through a non-linear transmission medium
GB0704622D0 (en) * 2007-03-09 2007-04-18 Skype Ltd Speech coding system and method
US8983830B2 (en) * 2007-03-30 2015-03-17 Panasonic Intellectual Property Corporation Of America Stereo signal encoding device including setting of threshold frequencies and stereo signal encoding method including setting of threshold frequencies
US7774205B2 (en) * 2007-06-15 2010-08-10 Microsoft Corporation Coding of sparse digital media spectral data
US7761290B2 (en) 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
JP5098492B2 (en) * 2007-07-30 2012-12-12 ソニー株式会社 Signal processing apparatus, signal processing method, and program
US20090198500A1 (en) * 2007-08-24 2009-08-06 Qualcomm Incorporated Temporal masking in audio coding based on spectral dynamics in frequency sub-bands
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
ES2375192T3 (en) 2007-08-27 2012-02-27 Telefonaktiebolaget L M Ericsson (Publ) CODIFICATION FOR IMPROVED SPEECH TRANSFORMATION AND AUDIO SIGNALS.
WO2009055718A1 (en) * 2007-10-24 2009-04-30 Red Shift Company, Llc Producing phonitos based on feature vectors
US20090271196A1 (en) * 2007-10-24 2009-10-29 Red Shift Company, Llc Classifying portions of a signal representing speech
EP2202729B1 (en) 2007-10-26 2017-03-15 D&M Holdings, Inc. Audio signal interpolation device and audio signal interpolation method
US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
WO2009057327A1 (en) * 2007-10-31 2009-05-07 Panasonic Corporation Encoder and decoder
EP2207166B1 (en) * 2007-11-02 2013-06-19 Huawei Technologies Co., Ltd. An audio decoding method and device
WO2009059631A1 (en) * 2007-11-06 2009-05-14 Nokia Corporation Audio coding apparatus and method thereof
US20100250260A1 (en) * 2007-11-06 2010-09-30 Lasse Laaksonen Encoder
US9082397B2 (en) * 2007-11-06 2015-07-14 Nokia Technologies Oy Encoder
EP2210253A4 (en) * 2007-11-21 2010-12-01 Lg Electronics Inc A method and an apparatus for processing a signal
KR100970446B1 (en) * 2007-11-21 2010-07-16 한국전자통신연구원 Apparatus and method for deciding adaptive noise level for frequency extension
US8688441B2 (en) 2007-11-29 2014-04-01 Motorola Mobility Llc Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content
US9275648B2 (en) * 2007-12-18 2016-03-01 Lg Electronics Inc. Method and apparatus for processing audio signal using spectral data of audio signal
CN101903945B (en) 2007-12-21 2014-01-01 松下电器产业株式会社 Encoder, decoder, and encoding method
WO2009084221A1 (en) * 2007-12-27 2009-07-09 Panasonic Corporation Encoding device, decoding device, and method thereof
ATE518224T1 (en) * 2008-01-04 2011-08-15 Dolby Int Ab AUDIO ENCODERS AND DECODERS
KR101413968B1 (en) * 2008-01-29 2014-07-01 삼성전자주식회사 Method and apparatus for encoding audio signal, and method and apparatus for decoding audio signal
DE102008015702B4 (en) 2008-01-31 2010-03-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for bandwidth expansion of an audio signal
US8433582B2 (en) * 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
US20090201983A1 (en) 2008-02-07 2009-08-13 Motorola, Inc. Method and apparatus for estimating high-band energy in a bandwidth extension system
US20090203395A1 (en) * 2008-02-08 2009-08-13 Sony Ericsson Mobile Communications Ab Amplitude modulation radio transmission with extended bandwidth
KR101230481B1 (en) 2008-03-10 2013-02-06 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Device and method for manipulating an audio signal having a transient event
JP5326311B2 (en) 2008-03-19 2013-10-30 沖電気工業株式会社 Voice band extending apparatus, method and program, and voice communication apparatus
EP3296992B1 (en) * 2008-03-20 2021-09-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for modifying a parameterized representation
JP2009300707A (en) * 2008-06-13 2009-12-24 Sony Corp Information processing device and method, and program
US8909361B2 (en) * 2008-06-19 2014-12-09 Broadcom Corporation Method and system for processing high quality audio in a hardware audio codec for audio transmission
US9378751B2 (en) * 2008-06-19 2016-06-28 Broadcom Corporation Method and system for digital gain processing in a hardware audio CODEC for audio transmission
WO2009157280A1 (en) * 2008-06-26 2009-12-30 独立行政法人科学技術振興機構 Audio signal compression device, audio signal compression method, audio signal demodulation device, and audio signal demodulation method
US8010313B2 (en) 2008-06-27 2011-08-30 Movea Sa Hand held pointing device with roll compensation
US20140184509A1 (en) 2013-01-02 2014-07-03 Movea Sa Hand held pointing device with roll compensation
USRE47180E1 (en) * 2008-07-11 2018-12-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
PL2346029T3 (en) * 2008-07-11 2013-11-29 Fraunhofer Ges Forschung Audio encoder, method for encoding an audio signal and corresponding computer program
US8880410B2 (en) 2008-07-11 2014-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
KR101278546B1 (en) * 2008-07-11 2013-06-24 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. An apparatus and a method for generating bandwidth extension output data
RU2491658C2 (en) * 2008-07-11 2013-08-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Audio signal synthesiser and audio signal encoder
WO2010003557A1 (en) * 2008-07-11 2010-01-14 Frauenhofer- Gesellschaft Zur Förderung Der Angewandten Forschung E. V. Apparatus and method for generating a bandwidth extended signal
KR101756834B1 (en) * 2008-07-14 2017-07-12 삼성전자주식회사 Method and apparatus for encoding and decoding of speech and audio signal
US8463412B2 (en) 2008-08-21 2013-06-11 Motorola Mobility Llc Method and apparatus to facilitate determining signal bounding frequencies
US8326640B2 (en) * 2008-08-26 2012-12-04 Broadcom Corporation Method and system for multi-band amplitude estimation and gain control in an audio CODEC
JP2010079275A (en) * 2008-08-29 2010-04-08 Sony Corp Device and method for expanding frequency band, device and method for encoding, device and method for decoding, and program
US8515747B2 (en) * 2008-09-06 2013-08-20 Huawei Technologies Co., Ltd. Spectrum harmonic/noise sharpness control
US8407046B2 (en) * 2008-09-06 2013-03-26 Huawei Technologies Co., Ltd. Noise-feedback for spectral envelope quantization
US8532998B2 (en) 2008-09-06 2013-09-10 Huawei Technologies Co., Ltd. Selective bandwidth extension for encoding/decoding audio/speech signal
US8352279B2 (en) * 2008-09-06 2013-01-08 Huawei Technologies Co., Ltd. Efficient temporal envelope coding approach by prediction between low band signal and high band signal
US8532983B2 (en) * 2008-09-06 2013-09-10 Huawei Technologies Co., Ltd. Adaptive frequency prediction for encoding or decoding an audio signal
US8577673B2 (en) * 2008-09-15 2013-11-05 Huawei Technologies Co., Ltd. CELP post-processing for music signals
WO2010031003A1 (en) * 2008-09-15 2010-03-18 Huawei Technologies Co., Ltd. Adding second enhancement layer to celp based core layer
US8831958B2 (en) 2008-09-25 2014-09-09 Lg Electronics Inc. Method and an apparatus for a bandwidth extension using different schemes
EP2184929B1 (en) 2008-11-10 2013-04-03 Oticon A/S N band FM demodulation to aid cochlear hearing impaired persons
US8548816B1 (en) * 2008-12-01 2013-10-01 Marvell International Ltd. Efficient scalefactor estimation in advanced audio coding and MP3 encoder
CN101751925B (en) * 2008-12-10 2011-12-21 华为技术有限公司 Tone decoding method and device
GB0822537D0 (en) 2008-12-10 2009-01-14 Skype Ltd Regeneration of wideband speech
US9947340B2 (en) * 2008-12-10 2018-04-17 Skype Regeneration of wideband speech
GB2466201B (en) * 2008-12-10 2012-07-11 Skype Ltd Regeneration of wideband speech
EP4053838B1 (en) 2008-12-15 2023-06-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
AU2013203159B2 (en) * 2008-12-15 2015-09-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and bandwidth extension decoder
WO2010070770A1 (en) * 2008-12-19 2010-06-24 富士通株式会社 Voice band extension device and voice band extension method
UA99878C2 (en) * 2009-01-16 2012-10-10 Долби Интернешнл Аб Cross product enhanced harmonic transposition
EP2211339B1 (en) 2009-01-23 2017-05-31 Oticon A/s Listening system
US20100191534A1 (en) * 2009-01-23 2010-07-29 Qualcomm Incorporated Method and apparatus for compression or decompression of digital signals
PL3246919T3 (en) 2009-01-28 2021-03-08 Dolby International Ab Improved harmonic transposition
AU2013211560B2 (en) * 2009-01-28 2016-04-28 Dolby International Ab Improved harmonic transposition
PL3751570T3 (en) 2009-01-28 2022-03-07 Dolby International Ab Improved harmonic transposition
AU2015221516B2 (en) * 2009-01-28 2017-08-10 Dolby International Ab Improved Harmonic Transposition
EP2214165A3 (en) 2009-01-30 2010-09-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for manipulating an audio signal comprising a transient event
US8463599B2 (en) * 2009-02-04 2013-06-11 Motorola Mobility Llc Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder
DK2394442T3 (en) 2009-02-06 2017-02-27 Oticon As Spectral band substitution to avoid the sheath and suboscillation
TWI618350B (en) 2009-02-18 2018-03-11 杜比國際公司 Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
TWI716833B (en) * 2009-02-18 2021-01-21 瑞典商杜比國際公司 Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
CA2754671C (en) 2009-03-17 2017-01-10 Dolby International Ab Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding
JP5267257B2 (en) * 2009-03-23 2013-08-21 沖電気工業株式会社 Audio mixing apparatus, method and program, and audio conference system
RU2452044C1 (en) * 2009-04-02 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Apparatus, method and media with programme code for generating representation of bandwidth-extended signal on basis of input signal representation using combination of harmonic bandwidth-extension and non-harmonic bandwidth-extension
EP2239732A1 (en) 2009-04-09 2010-10-13 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
JP4921611B2 (en) * 2009-04-03 2012-04-25 株式会社エヌ・ティ・ティ・ドコモ Speech decoding apparatus, speech decoding method, and speech decoding program
JP4932917B2 (en) 2009-04-03 2012-05-16 株式会社エヌ・ティ・ティ・ドコモ Speech decoding apparatus, speech decoding method, and speech decoding program
CN101521014B (en) * 2009-04-08 2011-09-14 武汉大学 Audio bandwidth expansion coding and decoding devices
CO6440537A2 (en) 2009-04-09 2012-05-15 Fraunhofer Ges Forschung APPARATUS AND METHOD TO GENERATE A SYNTHESIS AUDIO SIGNAL AND TO CODIFY AN AUDIO SIGNAL
AU2013207549B2 (en) * 2009-04-09 2015-06-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
AU2015264887B2 (en) * 2009-05-27 2017-12-07 Dolby International Ab Efficient Combined Harmonic Transposition
TWI643187B (en) * 2009-05-27 2018-12-01 瑞典商杜比國際公司 Systems and methods for generating a high frequency component of a signal from a low frequency component of the signal, a set-top box, a computer program product and storage medium thereof
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
AU2013263712B2 (en) * 2009-05-27 2015-11-12 Dolby International Ab Efficient Combined Harmonic Transposition
US8971551B2 (en) 2009-09-18 2015-03-03 Dolby International Ab Virtual bass synthesis using harmonic transposition
AU2014201331B2 (en) * 2009-06-29 2015-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
EP2273493B1 (en) * 2009-06-29 2012-12-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Bandwidth extension encoding and decoding
JP5365380B2 (en) * 2009-07-07 2013-12-11 ソニー株式会社 Acoustic signal processing apparatus, processing method thereof, and program
EP2306456A1 (en) * 2009-09-04 2011-04-06 Thomson Licensing Method for decoding an audio signal that has a base layer and an enhancement layer
JP5031006B2 (en) * 2009-09-04 2012-09-19 パナソニック株式会社 Scalable decoding apparatus and scalable decoding method
KR101405022B1 (en) * 2009-09-18 2014-06-10 돌비 인터네셔널 에이비 A system and method for transposing and input signal, a storage medium comprising a software program and a coputer program product for performing the method
JP5754899B2 (en) * 2009-10-07 2015-07-29 ソニー株式会社 Decoding apparatus and method, and program
WO2011048010A1 (en) 2009-10-19 2011-04-28 Dolby International Ab Metadata time marking information for indicating a section of an audio object
EP3291231B1 (en) 2009-10-21 2020-06-10 Dolby International AB Oversampling in a combined transposer filterbank
AU2010310041B2 (en) 2009-10-21 2013-08-15 Dolby International Ab Apparatus and method for generating a high frequency audio signal using adaptive oversampling
WO2011048792A1 (en) * 2009-10-21 2011-04-28 パナソニック株式会社 Sound signal processing apparatus, sound encoding apparatus and sound decoding apparatus
US20110257978A1 (en) * 2009-10-23 2011-10-20 Brainlike, Inc. Time Series Filtering, Data Reduction and Voice Recognition in Communication Device
TWI484473B (en) 2009-10-30 2015-05-11 Dolby Int Ab Method and system for extracting tempo information of audio signal from an encoded bit-stream, and estimating perceptually salient tempo of audio signal
WO2011062538A1 (en) * 2009-11-19 2011-05-26 Telefonaktiebolaget Lm Ericsson (Publ) Bandwidth extension of a low band audio signal
JP5812998B2 (en) * 2009-11-19 2015-11-17 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Method and apparatus for loudness and sharpness compensation in audio codecs
EP2502230B1 (en) * 2009-11-19 2014-05-21 Telefonaktiebolaget L M Ericsson (PUBL) Improved excitation signal bandwidth extension
BR112012014856B1 (en) * 2009-12-16 2022-10-18 Dolby International Ab METHOD FOR MERGING SBR PARAMETER SOURCE SETS TO SBR PARAMETER TARGET SETS, NON-TRAINER STORAGE AND SBR PARAMETER FUSING UNIT
KR20230003596A (en) * 2010-01-19 2023-01-06 돌비 인터네셔널 에이비 Improved subband block based harmonic transposition
AU2014200151B2 (en) * 2010-01-19 2015-04-16 Dolby International Ab Improved subband block based harmonic transposition
AU2015203065B2 (en) * 2010-01-19 2017-05-11 Dolby International Ab Improved subband block based harmonic transposition
KR101712101B1 (en) * 2010-01-28 2017-03-03 삼성전자 주식회사 Signal processing method and apparatus
EP2362375A1 (en) 2010-02-26 2011-08-31 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for modifying an audio signal using harmonic locking
RU2596033C2 (en) * 2010-03-09 2016-08-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Device and method of producing improved frequency characteristics and temporary phasing by bandwidth expansion using audio signals in phase vocoder
KR101412117B1 (en) 2010-03-09 2014-06-26 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Apparatus and method for handling transient sound events in audio signals when changing the replay speed or pitch
AU2011226212B2 (en) 2010-03-09 2014-03-27 Dolby International Ab Apparatus and method for processing an input audio signal using cascaded filterbanks
DK2375782T3 (en) * 2010-04-09 2019-03-18 Oticon As Improvements in sound perception by using frequency transposing by moving the envelope
JP5609737B2 (en) 2010-04-13 2014-10-22 ソニー株式会社 Signal processing apparatus and method, encoding apparatus and method, decoding apparatus and method, and program
JP5850216B2 (en) 2010-04-13 2016-02-03 ソニー株式会社 Signal processing apparatus and method, encoding apparatus and method, decoding apparatus and method, and program
TR201904117T4 (en) * 2010-04-16 2019-05-21 Fraunhofer Ges Forschung Apparatus, method and computer program for generating a broadband signal using guided bandwidth extension and blind bandwidth extension.
US8452826B2 (en) 2010-05-04 2013-05-28 Raytheon Applied Signal Technology, Inc. Digital frequency channelizer
US8751225B2 (en) 2010-05-12 2014-06-10 Electronics And Telecommunications Research Institute Apparatus and method for coding signal in a communication system
US8600737B2 (en) * 2010-06-01 2013-12-03 Qualcomm Incorporated Systems, methods, apparatus, and computer program products for wideband speech coding
HUE028738T2 (en) * 2010-06-09 2017-01-30 Panasonic Ip Corp America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
KR102304093B1 (en) 2010-07-19 2021-09-23 돌비 인터네셔널 에이비 Processing of audio signals during high frequency reconstruction
JP6075743B2 (en) 2010-08-03 2017-02-08 ソニー株式会社 Signal processing apparatus and method, and program
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
AU2011288406B2 (en) 2010-08-12 2014-07-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
BR122019025115B1 (en) 2010-09-16 2021-04-13 Dolby International Ab SYSTEM AND METHOD FOR GENERATING AN EXTENDED TIME AND / OR FREQUENCY SIGN TRANSPOSED FROM AN ENTRY SIGNAL AND STORAGE MEDIA LEGIBLE BY NON-TRANSITIONAL COMPUTER
JP5552988B2 (en) * 2010-09-27 2014-07-16 富士通株式会社 Voice band extending apparatus and voice band extending method
JP5707842B2 (en) 2010-10-15 2015-04-30 ソニー株式会社 Encoding apparatus and method, decoding apparatus and method, and program
US8868432B2 (en) * 2010-10-15 2014-10-21 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
US8924200B2 (en) * 2010-10-15 2014-12-30 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
KR20120046627A (en) * 2010-11-02 2012-05-10 삼성전자주식회사 Speaker adaptation method and apparatus
TWI412022B (en) * 2010-12-30 2013-10-11 Univ Nat Cheng Kung Recursive discrete cosine transform and inverse discrete cosine transform system
JP5743137B2 (en) 2011-01-14 2015-07-01 ソニー株式会社 Signal processing apparatus and method, and program
AR085361A1 (en) 2011-02-14 2013-09-25 Fraunhofer Ges Forschung CODING AND DECODING POSITIONS OF THE PULSES OF THE TRACKS OF AN AUDIO SIGNAL
ES2534972T3 (en) 2011-02-14 2015-04-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Linear prediction based on coding scheme using spectral domain noise conformation
ES2458436T3 (en) * 2011-02-14 2014-05-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal representation using overlay transform
BR112013020482B1 (en) 2011-02-14 2021-02-23 Fraunhofer Ges Forschung apparatus and method for processing a decoded audio signal in a spectral domain
ES2623291T3 (en) 2011-02-14 2017-07-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding a portion of an audio signal using transient detection and quality result
DK3407352T3 (en) * 2011-02-18 2022-06-07 Ntt Docomo Inc SPEECH DECODES, SPEECH CODES, SPEECH DECODATION PROCEDURE, SPEECH CODING PROCEDURE, SPEECH DECODING PROGRAM AND SPEECH CODING PROGRAM
ES2741559T3 (en) * 2011-04-15 2020-02-11 Ericsson Telefon Ab L M Adaptive sharing of gain-form speed
US9536534B2 (en) * 2011-04-20 2017-01-03 Panasonic Intellectual Property Corporation Of America Speech/audio encoding apparatus, speech/audio decoding apparatus, and methods thereof
EP2709103B1 (en) * 2011-06-09 2015-10-07 Panasonic Intellectual Property Corporation of America Voice coding device, voice decoding device, voice coding method and voice decoding method
US9070361B2 (en) * 2011-06-10 2015-06-30 Google Technology Holdings LLC Method and apparatus for encoding a wideband speech signal utilizing downmixing of a highband component
US20130006644A1 (en) * 2011-06-30 2013-01-03 Zte Corporation Method and device for spectral band replication, and method and system for audio decoding
DE102011106034A1 (en) * 2011-06-30 2013-01-03 Zte Corporation Method for enabling spectral band replication in e.g. digital audio broadcast, involves determining spectral band replication period and source frequency segment, and performing spectral band replication on null bit code sub bands at period
EP2562751B1 (en) 2011-08-22 2014-06-11 Svox AG Temporal interpolation of adjacent spectra
JP5975243B2 (en) 2011-08-24 2016-08-23 ソニー株式会社 Encoding apparatus and method, and program
JP6037156B2 (en) 2011-08-24 2016-11-30 ソニー株式会社 Encoding apparatus and method, and program
JP5807453B2 (en) * 2011-08-30 2015-11-10 富士通株式会社 Encoding method, encoding apparatus, and encoding program
US8774308B2 (en) * 2011-11-01 2014-07-08 At&T Intellectual Property I, L.P. Method and apparatus for improving transmission of data on a bandwidth mismatched channel
US8781023B2 (en) * 2011-11-01 2014-07-15 At&T Intellectual Property I, L.P. Method and apparatus for improving transmission of data on a bandwidth expanded channel
EP2777042B1 (en) 2011-11-11 2019-08-14 Dolby International AB Upsampling using oversampled sbr
JP5817499B2 (en) 2011-12-15 2015-11-18 富士通株式会社 Decoding device, encoding device, encoding / decoding system, decoding method, encoding method, decoding program, and encoding program
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
US9905236B2 (en) 2012-03-23 2018-02-27 Dolby Laboratories Licensing Corporation Enabling sampling rate diversity in a voice communication system
US8965290B2 (en) * 2012-03-29 2015-02-24 General Electric Company Amplitude enhanced frequency modulation
JP5997592B2 (en) 2012-04-27 2016-09-28 株式会社Ｎｔｔドコモ Speech decoder
EP2682941A1 (en) * 2012-07-02 2014-01-08 Technische Universität Ilmenau Device, method and computer program for freely selectable frequency shifts in the sub-band domain
JP6065452B2 (en) * 2012-08-14 2017-01-25 富士通株式会社 Data embedding device and method, data extraction device and method, and program
EP2704142B1 (en) 2012-08-27 2015-09-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal
EP2709106A1 (en) 2012-09-17 2014-03-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal
US9129600B2 (en) * 2012-09-26 2015-09-08 Google Technology Holdings LLC Method and apparatus for encoding an audio signal
MX347062B (en) 2013-01-29 2017-04-10 Fraunhofer Ges Forschung Audio encoder, audio decoder, method for providing an encoded audio information, method for providing a decoded audio information, computer program and encoded representation using a signal-adaptive bandwidth extension.
JP6146069B2 (en) 2013-03-18 2017-06-14 富士通株式会社 Data embedding device and method, data extraction device and method, and program
EP3742440A1 (en) * 2013-04-05 2020-11-25 Dolby International AB Audio encoder and decoder for interleaved waveform coding
KR20190134821A (en) * 2013-04-05 2019-12-04 돌비 인터네셔널 에이비 Stereo audio encoder and decoder
US8804971B1 (en) 2013-04-30 2014-08-12 Dolby International Ab Hybrid encoding of higher frequency and downmixed low frequency content of multichannel audio
SG11201510162WA (en) 2013-06-10 2016-01-28 Fraunhofer Ges Forschung Apparatus and method for audio signal envelope encoding, processing and decoding by modelling a cumulative sum representation employing distribution quantization and coding
AU2014280256B2 (en) 2013-06-10 2016-10-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for audio signal envelope encoding, processing and decoding by splitting the audio signal envelope employing distribution quantization and coding
EP2822263B1 (en) 2013-07-05 2019-03-27 Sennheiser Communications A/S Communication device with echo suppression
EP2830054A1 (en) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling framework
EP2830055A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Context-based entropy coding of sample values of a spectral envelope
US9875746B2 (en) 2013-09-19 2018-01-23 Sony Corporation Encoding device and method, decoding device and method, and program
EP2871641A1 (en) * 2013-11-12 2015-05-13 Dialog Semiconductor B.V. Enhancement of narrowband audio signals using a single sideband AM modulation
WO2015077641A1 (en) * 2013-11-22 2015-05-28 Qualcomm Incorporated Selective phase compensation in high band coding
WO2015098564A1 (en) 2013-12-27 2015-07-02 ソニー株式会社 Decoding device, method, and program
CN103795420B (en) * 2014-02-10 2017-04-05 南京邮电大学 A kind of SBR multiattribute data compression methods based on segmentation
MX361028B (en) 2014-02-28 2018-11-26 Fraunhofer Ges Forschung Decoding device, encoding device, decoding method, encoding method, terminal device, and base station device.
JP6439296B2 (en) * 2014-03-24 2018-12-19 ソニー株式会社 Decoding apparatus and method, and program
MX367639B (en) 2014-03-31 2019-08-29 Fraunhofer Ges Forschung Encoder, decoder, encoding method, decoding method, and program.
EP2963648A1 (en) 2014-07-01 2016-01-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio processor and method for processing an audio signal using vertical phase correction
KR102125410B1 (en) * 2015-02-26 2020-06-22 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Apparatus and method for processing audio signal to obtain processed audio signal using target time domain envelope
TWI693595B (en) * 2015-03-13 2020-05-11 瑞典商杜比國際公司 Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element
TWI693594B (en) 2015-03-13 2020-05-11 瑞典商杜比國際公司 Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element
WO2016180704A1 (en) 2015-05-08 2016-11-17 Dolby International Ab Dialog enhancement complemented with frequency transposition
US9837089B2 (en) * 2015-06-18 2017-12-05 Qualcomm Incorporated High-band signal generation
US10847170B2 (en) 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges
US10861475B2 (en) * 2015-11-10 2020-12-08 Dolby International Ab Signal-dependent companding system and method to reduce quantization noise
EP3182411A1 (en) 2015-12-14 2017-06-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an encoded audio signal
US10395664B2 (en) 2016-01-26 2019-08-27 Dolby Laboratories Licensing Corporation Adaptive Quantization
JP6763194B2 (en) * 2016-05-10 2020-09-30 株式会社Ｊｖｃケンウッド Encoding device, decoding device, communication system
EP3246923A1 (en) * 2016-05-20 2017-11-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing a multichannel audio signal
JP6621709B2 (en) * 2016-05-26 2019-12-18 アルパイン株式会社 Audio processing apparatus, audio processing method, and computer program
CN107845385B (en) * 2016-09-19 2021-07-13 南宁富桂精密工业有限公司 Coding and decoding method and system for information hiding
GB201620317D0 (en) * 2016-11-30 2017-01-11 Microsoft Technology Licensing Llc Audio signal processing
NO343581B1 (en) * 2017-03-01 2019-04-08 Dolby Int Ab Procedure, device and program for spectral envelope adjustment
CN109215675B (en) * 2017-07-05 2021-08-03 苏州谦问万答吧教育科技有限公司 Howling suppression method, device and equipment
US10714098B2 (en) * 2017-12-21 2020-07-14 Dolby Laboratories Licensing Corporation Selective forward error correction for spatial audio codecs
CN112189231A (en) 2018-04-25 2021-01-05 杜比国际公司 Integration of high frequency audio reconstruction techniques
KR102310937B1 (en) 2018-04-25 2021-10-12 돌비 인터네셔널 에이비 Integration of high-frequency reconstruction technology with reduced post-processing delay
EP3671741A1 (en) * 2018-12-21 2020-06-24 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Audio processor and method for generating a frequency-enhanced audio signal using pulse processing
CN113113032A (en) * 2020-01-10 2021-07-13 华为技术有限公司 Audio coding and decoding method and audio coding and decoding equipment
JPWO2022097242A1 (en) * 2020-11-05 2022-05-12
WO2022097240A1 (en) * 2020-11-05 2022-05-12 日本電信電話株式会社 Sound-signal high-frequency compensation method, sound-signal postprocessing method, sound signal decoding method, apparatus therefor, program, and recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US5068899A (en) * 1985-04-03 1991-11-26 Northern Telecom Limited Transmission of wideband speech signals
US5127054A (en) * 1988-04-29 1992-06-30 Motorola, Inc. Speech quality improvement for voice coders and synthesizers

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150253A (en) * 1976-03-15 1979-04-17 Inter-Technology Exchange Ltd. Signal distortion circuit and method of use
US4790016A (en) * 1985-11-14 1988-12-06 Gte Laboratories Incorporated Adaptive method and apparatus for coding speech
SE444750B (en) * 1985-06-04 1986-04-28 Lars Gustaf Liljeryd METHOD OF ELECTRONICALLY ASTADCOM MAKING EXPLANATION OF SOUND OR IMAGE INFORMATION EQUIPMENT FOR EXECUTING THE METHOD
US4776014A (en) * 1986-09-02 1988-10-04 General Electric Company Method for pitch-aligned high-frequency regeneration in RELP vocoders
US4771465A (en) 1986-09-11 1988-09-13 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech sinusoidal vocoder with transmission of only subset of harmonics
US5040217A (en) 1989-10-18 1991-08-13 At&T Bell Laboratories Perceptual coding of audio signals
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
US5436940A (en) * 1992-06-11 1995-07-25 Massachusetts Institute Of Technology Quadrature mirror filter banks and method
CA2106440C (en) * 1992-11-30 1997-11-18 Jelena Kovacevic Method and apparatus for reducing correlated errors in subband coding systems with quantizers
US5684920A (en) 1994-03-17 1997-11-04 Nippon Telegraph And Telephone Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein
US5717823A (en) * 1994-04-14 1998-02-10 Lucent Technologies Inc. Speech-rate modification for linear-prediction based analysis-by-synthesis speech coders
US5687340A (en) * 1995-05-16 1997-11-11 Hewlett-Packard Company Reduced area floating point processor control logic utilizing a decoder between a control unit and the FPU
US5692050A (en) * 1995-06-15 1997-11-25 Binaura Corporation Method and apparatus for spatially enhancing stereo and monophonic signals
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US5687191A (en) 1995-12-06 1997-11-11 Solana Technology Development Corporation Post-compression hidden data transport
US5822370A (en) * 1996-04-16 1998-10-13 Aura Systems, Inc. Compression/decompression for preservation of high fidelity speech quality at low bandwidth
US6049766A (en) * 1996-11-07 2000-04-11 Creative Technology Ltd. Time-domain time/pitch scaling of speech or audio signals with transient handling
JP3017715B2 (en) * 1997-10-31 2000-03-13 松下電器産業株式会社 Audio playback device
EP0957579A1 (en) * 1998-05-15 1999-11-17 Deutsche Thomson-Brandt Gmbh Method and apparatus for sampling-rate conversion of audio signals
JP3546755B2 (en) * 1999-05-06 2004-07-28 ヤマハ株式会社 Method and apparatus for companding time axis of rhythm sound source signal
US6988066B2 (en) * 2001-10-04 2006-01-17 At&T Corp. Method of bandwidth extension for narrow-band speech

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US5068899A (en) * 1985-04-03 1991-11-26 Northern Telecom Limited Transmission of wideband speech signals
US5127054A (en) * 1988-04-29 1992-06-30 Motorola, Inc. Speech quality improvement for voice coders and synthesizers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A J S FERREIRA: "Audio Spectral Coder", AES REPRINT 4201, 100TH CONVENTION, COPENHAGEN, 11 May 1996 (1996-05-11) - 14 May 1996 (1996-05-14), XP002100534 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9218818B2 (en) 2001-07-10 2015-12-22 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US9431020B2 (en) 2001-11-29 2016-08-30 Dolby International Ab Methods for improving high frequency reconstruction
CN101505144B (en) * 2002-09-18 2012-05-16 瑞典商编码技术股份公司 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
US9542950B2 (en) 2002-09-18 2017-01-10 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
KR100917464B1 (en) * 2003-03-07 2009-09-14 삼성전자주식회사 Method and apparatus for encoding/decoding digital data using bandwidth extension technology
KR100923300B1 (en) * 2003-03-22 2009-10-23 삼성전자주식회사 Method and apparatus for encoding/decoding audio data using bandwidth extension technology
KR100923301B1 (en) * 2003-03-22 2009-10-23 삼성전자주식회사 Method and apparatus for encoding/decoding audio data using bandwidth extension technology

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