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
lsps
broadband
encoding
wide band
Prior art date
Application number
BRPI0515814-1A
Other languages
English (en)
Inventor
Hiroyuki Ehara
Koji Yoshida
Toshiyuki Morii
Original Assignee
Matsushita Electric Industrial 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial 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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Amplifiers (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)

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CN101911185B (zh) * 2008-01-16 2013-04-03 松下电器产业株式会社 矢量量化装置、矢量反量化装置及其方法
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
JP5335004B2 (ja) * 2009-02-13 2013-11-06 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
JP5459688B2 (ja) * 2009-03-31 2014-04-02 ▲ホア▼▲ウェイ▼技術有限公司 復号信号のスペクトルを調整する方法、装置、および音声復号システム
US8447617B2 (en) * 2009-12-21 2013-05-21 Mindspeed Technologies, Inc. Method and system for speech bandwidth extension
WO2011128723A1 (en) * 2010-04-12 2011-10-20 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
EP3279895B1 (en) * 2011-11-02 2019-07-10 Telefonaktiebolaget LM Ericsson (publ) Audio encoding based on an efficient representation of auto-regressive coefficients
EP3611728A1 (en) 2012-03-21 2020-02-19 Samsung Electronics Co., Ltd. Method and apparatus for high-frequency encoding/decoding for bandwidth extension
EP2830064A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selection
US9524720B2 (en) 2013-12-15 2016-12-20 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

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Also Published As

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

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Books Type of publication: Idiap-RR Citation: Motlicek_Idiap-RR-71-2008 Number: Idiap-RR-71-2008 Year: 2008 Month: 11

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