[go: up one dir, main page]

BRPI0515814A - dispositivo de codificação de banda larga, dispositivo de predição de lsp de banda larga, dispositivo de codificação de banda escalonável, método de codificação de banda larga - Google Patents

dispositivo de codificação de banda larga, dispositivo de predição de lsp de banda larga, dispositivo de codificação de banda escalonável, método de codificação de banda larga

Info

Publication number
BRPI0515814A
BRPI0515814A BRPI0515814-1A BRPI0515814A BRPI0515814A BR PI0515814 A BRPI0515814 A BR PI0515814A BR PI0515814 A BRPI0515814 A BR PI0515814A BR PI0515814 A BRPI0515814 A BR PI0515814A
Authority
BR
Brazil
Prior art keywords
wideband
band
wide
encoding
lsp
Prior art date
Application number
BRPI0515814-1A
Other languages
English (en)
Inventor
Hiroyuki Ehara
Koji Yoshida
Toshiyuki Morii
Original Assignee
Matsushita Electric Ind Co 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BRPI0515814A publication Critical patent/BRPI0515814A/pt

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
    • G10L19/04—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 predictive techniques
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] vocoders
    • 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
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Amplifiers (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

"DISPOSITIVO DE CODIFICAçãO DE BANDA LARGA, DISPOSITIVO DE PREDIçãO DE LSP DE BANDA LARGA, DISPOSITIVO DE CODIFICAçãO DE BANDA ESCALONáVEL, MéTODO DE CODIFICAçãO DE BANDA LARGA". A presente invenção refere-se a um dispositivo de predição de LSPs de banda larga e outros capazes de predizer um LSPs de banda larga de um LSPs de banda estreita com uma alta eficiência de quantização e uma alta precisão, ao mesmo tempo em que suprime o tamanho de uma tabela de conversão, correlacionando o LSPs de banda estreita com o LSPs de banda larga. Nesse dispositivo, uma unidade de predição não-linear (102) realiza predição não-linear pelo uso de um LSPs de banda larga convertido introduzido de uma unidade de conversão de banda estreita/ banda larga (101) e introduz o resultado da predição não-linear em um amplificador (103). O LSPs de banda larga convertido é introduzido em um amplificador (104). Um somador (122) adiciona os resultados da multiplicação (vetores) introduzidos dos amplificadores (103, 104).
BRPI0515814-1A 2004-12-10 2005-12-09 dispositivo de codificação de banda larga, dispositivo de predição de lsp de banda larga, dispositivo de codificação de banda escalonável, método de codificação de banda larga BRPI0515814A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2004358260 2004-12-10
JP2005095345 2005-03-29
JP2005286532 2005-09-30
PCT/JP2005/022690 WO2006062202A1 (ja) 2004-12-10 2005-12-09 広帯域符号化装置、広帯域ｌｓｐ予測装置、帯域スケーラブル符号化装置及び広帯域符号化方法

Publications (1)

Publication Number Publication Date
BRPI0515814A true BRPI0515814A (pt) 2008-08-05

Family

ID=36578022

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0515814-1A BRPI0515814A (pt) 2004-12-10 2005-12-09 dispositivo de codificação de banda larga, dispositivo de predição de lsp de banda larga, dispositivo de codificação de banda escalonável, método de codificação de banda larga

Country Status (8)

Country Link
US (1) US8229749B2 (pt)
EP (1) EP1818913B1 (pt)
JP (1) JP4903053B2 (pt)
KR (1) KR20070085982A (pt)
CN (1) CN101076853B (pt)
AT (1) ATE520124T1 (pt)
BR (1) BRPI0515814A (pt)
WO (1) WO2006062202A1 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8260609B2 (en) * 2006-07-31 2012-09-04 Qualcomm Incorporated Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
JP5300733B2 (ja) * 2007-10-12 2013-09-25 パナソニック株式会社 ベクトル量子化装置、ベクトル逆量子化装置、およびこれらの方法
EP2234104B1 (en) * 2008-01-16 2017-06-14 III Holdings 12, LLC Vector quantizer, vector inverse quantizer, and methods therefor
JP5423684B2 (ja) * 2008-12-19 2014-02-19 富士通株式会社 音声帯域拡張装置及び音声帯域拡張方法
EP2398149B1 (en) * 2009-02-13 2014-05-07 Panasonic Corporation Vector quantization device, vector inverse-quantization device, and associated methods
WO2010111876A1 (zh) 2009-03-31 2010-10-07 华为技术有限公司 一种信号去噪的方法和装置及音频解码系统
US8447617B2 (en) * 2009-12-21 2013-05-21 Mindspeed Technologies, Inc. Method and system for speech bandwidth extension
US20130024191A1 (en) * 2010-04-12 2013-01-24 Freescale Semiconductor, Inc. Audio communication device, method for outputting an audio signal, and communication system
US8000968B1 (en) 2011-04-26 2011-08-16 Huawei Technologies Co., Ltd. Method and apparatus for switching speech or audio signals
CN102339607A (zh) * 2010-07-16 2012-02-01 华为技术有限公司 一种频带扩展的方法和装置
ES2592522T3 (es) * 2011-11-02 2016-11-30 Telefonaktiebolaget L M Ericsson (Publ) Codificación de audio basada en representación de coeficientes auto-regresivos
US9378746B2 (en) 2012-03-21 2016-06-28 Samsung Electronics Co., Ltd. Method and apparatus for encoding and decoding high frequency for bandwidth extension
EP2830065A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequency
US20150170655A1 (en) * 2013-12-15 2015-06-18 Qualcomm Incorporated Systems and methods of blind bandwidth extension
WO2016142002A1 (en) 2015-03-09 2016-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
KR102002681B1 (ko) 2017-06-27 2019-07-23 한양대학교 산학협력단 생성적 대립 망 기반의 음성 대역폭 확장기 및 확장 방법
US11599773B2 (en) 2018-12-27 2023-03-07 Micron Technology, Inc. Neural networks and systems for decoding encoded data
US11424764B2 (en) * 2019-11-13 2022-08-23 Micron Technology, Inc. Recurrent neural networks and systems for decoding encoded data
US11563449B2 (en) 2021-04-27 2023-01-24 Micron Technology, Inc. Systems for error reduction of encoded data using neural networks
US11755408B2 (en) 2021-10-07 2023-09-12 Micron Technology, Inc. Systems for estimating bit error rate (BER) of encoded data using neural networks

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2779886B2 (ja) 1992-10-05 1998-07-23 日本電信電話株式会社 広帯域音声信号復元方法
JP3483958B2 (ja) * 1994-10-28 2004-01-06 三菱電機株式会社 広帯域音声復元装置及び広帯域音声復元方法及び音声伝送システム及び音声伝送方法
JP2956548B2 (ja) * 1995-10-05 1999-10-04 松下電器産業株式会社 音声帯域拡大装置
JP3189614B2 (ja) * 1995-03-13 2001-07-16 松下電器産業株式会社 音声帯域拡大装置
DE69713633T2 (de) * 1996-11-07 2002-10-31 Matsushita Electric Industrial Co., Ltd. Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
JP3541680B2 (ja) * 1998-06-15 2004-07-14 日本電気株式会社 音声音楽信号の符号化装置および復号装置
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
FI119576B (fi) * 2000-03-07 2008-12-31 Nokia Corp Puheenkäsittelylaite ja menetelmä puheen käsittelemiseksi, sekä digitaalinen radiopuhelin
KR20020035109A (ko) * 2000-05-26 2002-05-09 요트.게.아. 롤페즈 협대역으로 인코딩된 신호를 송신하는 송신기, 수신단에서 이 인코딩된 신호의 대역을 확장하는 수신기, 해당송신 방법과 수신 방법 및 시스템
JP2002055699A (ja) * 2000-08-10 2002-02-20 Mitsubishi Electric Corp 音声符号化装置および音声符号化方法
EP1199711A1 (en) * 2000-10-20 2002-04-24 Telefonaktiebolaget Lm Ericsson Encoding of audio signal using bandwidth expansion
JP2002202799A (ja) * 2000-10-30 2002-07-19 Fujitsu Ltd 音声符号変換装置
US7113522B2 (en) * 2001-01-24 2006-09-26 Qualcomm, Incorporated Enhanced conversion of wideband signals to narrowband signals
BR0206395A (pt) * 2001-11-14 2004-02-10 Matsushita Electric Ind Co Ltd Dispositivo de codificação, dispositivo de decodificação e sistema dos mesmos
JP2003323199A (ja) * 2002-04-26 2003-11-14 Matsushita Electric Ind Co Ltd 符号化装置、復号化装置及び符号化方法、復号化方法
CN100346392C (zh) 2002-04-26 2007-10-31 松下电器产业株式会社 编码设备、解码设备、编码方法和解码方法
JP3881943B2 (ja) * 2002-09-06 2007-02-14 松下電器産業株式会社 音響符号化装置及び音響符号化方法
ATE318405T1 (de) * 2002-09-19 2006-03-15 Matsushita Electric Ind Co Ltd Audiodecodierungsvorrichtung und -verfahren
US7254533B1 (en) * 2002-10-17 2007-08-07 Dilithium Networks Pty Ltd. Method and apparatus for a thin CELP voice codec
DE602005009374D1 (de) * 2004-09-06 2008-10-09 Matsushita Electric Ind Co Ltd Skalierbare codierungseinrichtung und skalierbares codierungsverfahren
KR100721537B1 (ko) * 2004-12-08 2007-05-23 한국전자통신연구원 광대역 음성 부호화기의 고대역 음성 부호화 장치 및 그방법
US7596491B1 (en) * 2005-04-19 2009-09-29 Texas Instruments Incorporated Layered CELP system and method
PT1875463T (pt) * 2005-04-22 2019-01-24 Qualcomm Inc Sistemas, métodos e aparelho para nivelamento de fator de ganho

Also Published As

Publication number Publication date
US20090292537A1 (en) 2009-11-26
CN101076853A (zh) 2007-11-21
EP1818913A1 (en) 2007-08-15
EP1818913B1 (en) 2011-08-10
US8229749B2 (en) 2012-07-24
CN101076853B (zh) 2010-10-13
ATE520124T1 (de) 2011-08-15
WO2006062202A1 (ja) 2006-06-15
KR20070085982A (ko) 2007-08-27
EP1818913A4 (en) 2009-01-14
JPWO2006062202A1 (ja) 2008-06-12
JP4903053B2 (ja) 2012-03-21

Similar Documents

Publication Publication Date Title
BRPI0515814A (pt) dispositivo de codificação de banda larga, dispositivo de predição de lsp de banda larga, dispositivo de codificação de banda escalonável, método de codificação de banda larga
TWI319565B (en) Methods, and apparatus for generating highband excitation signal
RU2012148131A (ru) Аудио- или видеокодер, аудио или видео и относящиеся к ним способы для обработки многоканальных аудио- или видеосигналов с использованием переменного направления предсказания
BRPI0515453A (pt) aparelho de codificação escalável, aparelho de decodificação escalável, método de codificação escalável método de decodificação escalável, aparelho de terminal de comunicação, e aparelho de estação de base
DK1825461T3 (da) Fremgangsmåde og indretning til kunstig udvidelse af båndbredden af talesignaler
DE602006000239D1 (de) Energieabhängige quantisierung für effiziente kodierung räumlicher audioparameter
RU2013124065A (ru) Кодирование обобщенных аудиосигналов на низких скоростях передачи битов и с низкой задержкой
EP1755109A4 (en) DEVICE FOR SCALABLE CODING, DEVICE FOR SCALABLE DECODING AND METHOD THEREFOR
WO2008108081A1 (ja) 適応音源ベクトル量子化装置および適応音源ベクトル量子化方法
DE602005006551D1 (de) Kodierungs-, dekodierungsvorrichtung und methode dafür
MY152167A (en) Encoding device and encoding method
ATE550739T1 (de) Bildverarbeitungsgerät und bildverarbeitungsverfahren
BRPI0512763A (pt) equipamento e método para gerar um sinal de saìda multicanais
DK1853089T4 (da) Fremgangsmåde til undertrykkelse af tilbagekoblinger og til spektraludvidelse i høreapparater
RU2011104350A (ru) Устройство сглаживания спектра, устройство кодирования, устройство декодирования, устройство терминала связи, устройство базовой станции и способ сглаживания спектра
ATE511720T1 (de) Vorrichtung und verfahren zur berechnung der maximalen leistungsreduktion für ein umts-signal
CN105612578B (zh) 用于信号处理的方法和设备
ATE537536T1 (de) Sprachkodierungsvorrichtung und sprachkodierungsverfahren
ATE448539T1 (de) Audiokodierungsvorrichtung und audiokodierungsmethode
RU2013142151A (ru) Устройство и способ для квантования усилений адаптивного и фиксированного вкладов возбуждения в кодеке celp
NL1030729A1 (nl) Beweging-adaptief beeldverwerkingstoestel en bewegingsadaptieve werkwijze daarvoor.
ATE536051T1 (de) Bildverarbeitungsvorrichtung, bildverarbeitungsverfahren und programm
EP1801783A4 (en) DEVICE FOR SCALABLE CODING, DEVICE FOR SCALABLE DECODING AND METHOD THEREFOR
EP2595147A4 (en) CODING METHOD AND DEVICE FOR AUDIO FILES
NO20055148L (no) Pulsmodulator og fremgangsmate for pulsmodulering

Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. AS CLASSIFICACOES IPC ANTERIORES ERAM: G10L 21/04; G10L 19/14.

Ipc: G10L 19/24 (2013.01), G10L 19/07 (2013.01), G10L 2

Ipc: G10L 19/24 (2013.01), G10L 19/07 (2013.01), G10L 2