BRPI0510400A - dispositivo de codificação, dispositivo de decodificação e método dos mesmos - Google Patents

dispositivo de codificação, dispositivo de decodificação e método dos mesmos

Info

Publication number
BRPI0510400A
BRPI0510400A BRPI0510400-9A BRPI0510400A BRPI0510400A BR PI0510400 A BRPI0510400 A BR PI0510400A BR PI0510400 A BRPI0510400 A BR PI0510400A BR PI0510400 A BRPI0510400 A BR PI0510400A
Authority
BR
Brazil
Prior art keywords
subbands
coding
gain
spectrum
frequency band
Prior art date
Application number
BRPI0510400-9A
Other languages
English (en)
Inventor
Masahiro Oshikiri
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 BRPI0510400A publication Critical patent/BRPI0510400A/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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Error Detection And Correction (AREA)

Abstract

DISPOSITIVO DE CODIFICAçãO, DISPOSITIVO DE DECODIFICAçãO E MéTODO DOS MESMOS. é mostrado um dispositivo de codificação capaz de melhorar a similaridade entre o espectro de banda de freqüência alta do sinal original e um novo espectro a ser gerado, enquanto se realiza uma taxa de bit baixa quando da codificação de um espectro de sinal de banda larga. O dispositivo de codificação tem as unidades de cálculo de amplitude de sub-banda (122, 128) para o cálculo da amplitude das respectivas sub-bandas para o espectro de banda de freqüência alta obtido a partir do sinal de banda larga. Uma unidade de busca (124) e um livro de código de ganho (125) selecionam algumas sub-bandas a partir de uma pluralidade de sub-bandas e apenas o ganho das sub-bandas selecionadas é submetido a uma codificação. Uma unidade de interpolação (126) expressa o ganho da sub-banda não selecionada pela interpolação mútua dos ganhos selecionados.
BRPI0510400-9A 2004-05-19 2005-05-17 dispositivo de codificação, dispositivo de decodificação e método dos mesmos BRPI0510400A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004148901 2004-05-19
PCT/JP2005/008963 WO2005112001A1 (ja) 2004-05-19 2005-05-17 符号化装置、復号化装置、およびこれらの方法

Publications (1)

Publication Number Publication Date
BRPI0510400A true BRPI0510400A (pt) 2007-10-23

Family

ID=35394381

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0510400-9A BRPI0510400A (pt) 2004-05-19 2005-05-17 dispositivo de codificação, dispositivo de decodificação e método dos mesmos

Country Status (9)

Country Link
US (2) US8463602B2 (pt)
EP (3) EP1742202B1 (pt)
JP (2) JP5013863B2 (pt)
KR (1) KR20070012832A (pt)
CN (2) CN102280109B (pt)
AT (1) ATE394774T1 (pt)
BR (1) BRPI0510400A (pt)
DE (1) DE602005006551D1 (pt)
WO (1) WO2005112001A1 (pt)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2888699A1 (fr) * 2005-07-13 2007-01-19 France Telecom Dispositif de codage/decodage hierachique
KR100717058B1 (ko) * 2005-11-28 2007-05-14 삼성전자주식회사 고주파 성분 복원 방법 및 그 장치
JP2007310298A (ja) * 2006-05-22 2007-11-29 Oki Electric Ind Co Ltd 帯域外信号生成装置及び周波数帯域拡張装置
JP5103880B2 (ja) * 2006-11-24 2012-12-19 富士通株式会社 復号化装置および復号化方法
JP4967618B2 (ja) 2006-11-24 2012-07-04 富士通株式会社 復号化装置および復号化方法
JP5339919B2 (ja) * 2006-12-15 2013-11-13 パナソニック株式会社 符号化装置、復号装置およびこれらの方法
JP5294713B2 (ja) * 2007-03-02 2013-09-18 パナソニック株式会社 符号化装置、復号装置およびそれらの方法
GB2448201A (en) * 2007-04-04 2008-10-08 Zarlink Semiconductor Inc Cancelling non-linear echo during full duplex communication in a hands free communication system.
US8149752B2 (en) * 2007-07-06 2012-04-03 Alcatel Lucent Media-access-control protocol for a network employing multi-user wireless channels
EP2212884B1 (en) * 2007-11-06 2013-01-02 Nokia Corporation An encoder
WO2009059632A1 (en) * 2007-11-06 2009-05-14 Nokia Corporation An encoder
CN101896968A (zh) * 2007-11-06 2010-11-24 诺基亚公司 音频编码装置及其方法
JP2009116245A (ja) * 2007-11-09 2009-05-28 Yamaha Corp 音声強調装置
JP2010079275A (ja) * 2008-08-29 2010-04-08 Sony Corp 周波数帯域拡大装置及び方法、符号化装置及び方法、復号化装置及び方法、並びにプログラム
CN101727906B (zh) * 2008-10-29 2012-02-01 华为技术有限公司 高频带信号的编解码方法及装置
JP5754899B2 (ja) 2009-10-07 2015-07-29 ソニー株式会社 復号装置および方法、並びにプログラム
JPWO2011048741A1 (ja) * 2009-10-20 2013-03-07 日本電気株式会社 マルチバンドコンプレッサ
JP5746974B2 (ja) * 2009-11-13 2015-07-08 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 符号化装置、復号装置およびこれらの方法
CN102081927B (zh) * 2009-11-27 2012-07-18 中兴通讯股份有限公司 一种可分层音频编码、解码方法及系统
JP5850216B2 (ja) 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5609737B2 (ja) 2010-04-13 2014-10-22 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
US9047875B2 (en) * 2010-07-19 2015-06-02 Futurewei Technologies, Inc. Spectrum flatness control for bandwidth extension
JP6075743B2 (ja) 2010-08-03 2017-02-08 ソニー株式会社 信号処理装置および方法、並びにプログラム
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
KR101826331B1 (ko) * 2010-09-15 2018-03-22 삼성전자주식회사 고주파수 대역폭 확장을 위한 부호화/복호화 장치 및 방법
JP5552988B2 (ja) * 2010-09-27 2014-07-16 富士通株式会社 音声帯域拡張装置および音声帯域拡張方法
JP5707842B2 (ja) 2010-10-15 2015-04-30 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
AU2015202393B2 (en) * 2010-12-29 2016-06-16 Samsung Electronics Co., Ltd. Apparatus and method for encoding/decoding for high-frequency bandwidth extension
ES2564504T3 (es) * 2010-12-29 2016-03-23 Samsung Electronics Co., Ltd Aparato de codificación y aparato de descodificación con una ampliación de ancho de banda
JP2012163919A (ja) * 2011-02-09 2012-08-30 Sony Corp 音声信号処理装置、および音声信号処理方法、並びにプログラム
CN102800317B (zh) * 2011-05-25 2014-09-17 华为技术有限公司 信号分类方法及设备、编解码方法及设备
JP6011758B2 (ja) * 2011-09-09 2016-10-19 国立研究開発法人情報通信研究機構 音声合成システム、音声合成方法、およびプログラム
CN103854653B (zh) 2012-12-06 2016-12-28 华为技术有限公司 信号解码的方法和设备
US9100466B2 (en) * 2013-05-13 2015-08-04 Intel IP Corporation Method for processing an audio signal and audio receiving circuit
EP2830061A1 (en) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an encoded audio signal using temporal noise/patch shaping
KR102329309B1 (ko) * 2013-09-12 2021-11-19 돌비 인터네셔널 에이비 Qmf 기반 처리 데이터의 시간 정렬
US9875746B2 (en) 2013-09-19 2018-01-23 Sony Corporation Encoding device and method, decoding device and method, and program
CA3162763A1 (en) 2013-12-27 2015-07-02 Sony Corporation Decoding apparatus and method, and program
CN111312277B (zh) 2014-03-03 2023-08-15 三星电子株式会社 用于带宽扩展的高频解码的方法及设备
EP3913628A1 (en) 2014-03-24 2021-11-24 Samsung Electronics Co., Ltd. High-band encoding method
CN110444217B (zh) 2014-05-01 2022-10-21 日本电信电话株式会社 解码装置、解码方法、记录介质
JP6401521B2 (ja) * 2014-07-04 2018-10-10 クラリオン株式会社 信号処理装置及び信号処理方法
CN112992164A (zh) * 2014-07-28 2021-06-18 日本电信电话株式会社 编码方法、装置、程序以及记录介质
JP2016038435A (ja) * 2014-08-06 2016-03-22 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
EP3800639B1 (en) * 2015-03-27 2022-12-28 Dolby Laboratories Licensing Corporation Adaptive audio filtering
JPWO2017119284A1 (ja) * 2016-01-08 2018-11-08 日本電気株式会社 信号処理装置、利得調整方法および利得調整プログラム
JP6763194B2 (ja) * 2016-05-10 2020-09-30 株式会社Ｊｖｃケンウッド 符号化装置、復号装置、通信システム
JP7016660B2 (ja) * 2017-10-05 2022-02-07 キヤノン株式会社 符号化装置、その制御方法、および制御プログラム、並びに撮像装置

Family Cites Families (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62234435A (ja) * 1986-04-04 1987-10-14 Kokusai Denshin Denwa Co Ltd <Kdd> 符号化音声の復号化方式
US5765127A (en) 1992-03-18 1998-06-09 Sony Corp High efficiency encoding method
JP3237178B2 (ja) 1992-03-18 2001-12-10 ソニー株式会社 符号化方法及び復号化方法
JPH0685607A (ja) * 1992-08-31 1994-03-25 Alpine Electron Inc 高域成分復元装置
US5455888A (en) * 1992-12-04 1995-10-03 Northern Telecom Limited Speech bandwidth extension method and apparatus
JP3106749B2 (ja) * 1992-12-10 2000-11-06 ソニー株式会社 適応型ダイナミックレンジ符号化装置
WO1997017692A1 (en) * 1995-11-07 1997-05-15 Euphonics, Incorporated Parametric signal modeling musical synthesizer
US5687191A (en) * 1995-12-06 1997-11-11 Solana Technology Development Corporation Post-compression hidden data transport
CN1126264C (zh) * 1996-02-08 2003-10-29 松下电器产业株式会社 宽频带声音信号编码装置和宽频带声音信号编码解码装置
TW326070B (en) * 1996-12-19 1998-02-01 Holtek Microelectronics Inc The estimation method of the impulse gain for coding vocoder
EP0878790A1 (en) * 1997-05-15 1998-11-18 Hewlett-Packard Company Voice coding system and method
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
EP0945852A1 (en) * 1998-03-25 1999-09-29 BRITISH TELECOMMUNICATIONS public limited company Speech synthesis
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
SE9903553D0 (sv) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US6324505B1 (en) * 1999-07-19 2001-11-27 Qualcomm Incorporated Amplitude quantization scheme for low-bit-rate speech coders
US6691082B1 (en) * 1999-08-03 2004-02-10 Lucent Technologies Inc Method and system for sub-band hybrid coding
US7039581B1 (en) * 1999-09-22 2006-05-02 Texas Instruments Incorporated Hybrid speed coding and system
US7139700B1 (en) * 1999-09-22 2006-11-21 Texas Instruments Incorporated Hybrid speech coding and system
US7136810B2 (en) * 2000-05-22 2006-11-14 Texas Instruments Incorporated Wideband speech coding system and method
WO2001095496A1 (fr) * 2000-06-06 2001-12-13 Sakai, Yasue Procede et appareil de compression, procede et appareil d'expansion, systeme de compression expansion
US6615169B1 (en) * 2000-10-18 2003-09-02 Nokia Corporation High frequency enhancement layer coding in wideband speech codec
JP3590342B2 (ja) * 2000-10-18 2004-11-17 日本電信電話株式会社 信号符号化方法、装置及び信号符号化プログラムを記録した記録媒体
US6889182B2 (en) * 2001-01-12 2005-05-03 Telefonaktiebolaget L M Ericsson (Publ) Speech bandwidth extension
US6931373B1 (en) * 2001-02-13 2005-08-16 Hughes Electronics Corporation Prototype waveform phase modeling for a frequency domain interpolative speech codec system
SE522553C2 (sv) * 2001-04-23 2004-02-17 Ericsson Telefon Ab L M Bandbreddsutsträckning av akustiska signaler
US6895375B2 (en) * 2001-10-04 2005-05-17 At&T Corp. System for bandwidth extension of Narrow-band speech
US6988066B2 (en) * 2001-10-04 2006-01-17 At&T Corp. Method of bandwidth extension for narrow-band speech
CN100395817C (zh) 2001-11-14 2008-06-18 松下电器产业株式会社 编码设备、解码设备和解码方法
JP3926726B2 (ja) * 2001-11-14 2007-06-06 松下電器産業株式会社 符号化装置および復号化装置
US6950794B1 (en) * 2001-11-20 2005-09-27 Cirrus Logic, Inc. Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression
WO2003046891A1 (en) * 2001-11-29 2003-06-05 Coding Technologies Ab Methods for improving high frequency reconstruction
JP4272897B2 (ja) * 2002-01-30 2009-06-03 パナソニック株式会社 符号化装置、復号化装置およびその方法
CN1288625C (zh) * 2002-01-30 2006-12-06 松下电器产业株式会社 音频编码与解码设备及其方法
JP2003255973A (ja) 2002-02-28 2003-09-10 Nec Corp 音声帯域拡張システムおよび方法
EP1489599B1 (en) 2002-04-26 2016-05-11 Panasonic Intellectual Property Corporation of America Coding device and decoding device
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
CA2388352A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for frequency-selective pitch enhancement of synthesized speed
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US7555434B2 (en) * 2002-07-19 2009-06-30 Nec Corporation Audio decoding device, decoding method, and program
JP4227772B2 (ja) * 2002-07-19 2009-02-18 日本電気株式会社 オーディオ復号装置と復号方法およびプログラム
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
BRPI0306434B1 (pt) * 2002-09-19 2018-06-12 Nec Corporation Aparelho e método de decodificação de áudio
JP2004198485A (ja) * 2002-12-16 2004-07-15 Victor Co Of Japan Ltd 音響符号化信号復号化装置及び音響符号化信号復号化プログラム
JP4380174B2 (ja) * 2003-02-27 2009-12-09 沖電気工業株式会社 帯域補正装置
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
JP2005004119A (ja) * 2003-06-16 2005-01-06 Victor Co Of Japan Ltd 音響信号符号化装置及び音響信号復号化装置
US8417515B2 (en) * 2004-05-14 2013-04-09 Panasonic Corporation Encoding device, decoding device, and method thereof
JP4876574B2 (ja) * 2005-12-26 2012-02-15 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
JP5265487B2 (ja) 2009-09-03 2013-08-14 光洋自動機株式会社 掘進装置

Also Published As

Publication number Publication date
CN102280109B (zh) 2016-04-27
JPWO2005112001A1 (ja) 2008-03-27
CN1954363B (zh) 2011-10-12
EP3118849B1 (en) 2020-01-01
US20080262835A1 (en) 2008-10-23
EP1939862B1 (en) 2016-10-05
US8463602B2 (en) 2013-06-11
EP1939862A1 (en) 2008-07-02
EP3118849A1 (en) 2017-01-18
JP2011248378A (ja) 2011-12-08
EP1742202B1 (en) 2008-05-07
DE602005006551D1 (de) 2008-06-19
CN102280109A (zh) 2011-12-14
US8688440B2 (en) 2014-04-01
CN1954363A (zh) 2007-04-25
US20130246075A1 (en) 2013-09-19
KR20070012832A (ko) 2007-01-29
EP1742202A4 (en) 2007-10-10
WO2005112001A1 (ja) 2005-11-24
JP5230782B2 (ja) 2013-07-10
ATE394774T1 (de) 2008-05-15
EP1742202A1 (en) 2007-01-10
JP5013863B2 (ja) 2012-08-29

Similar Documents

Publication Publication Date Title
BRPI0510400A (pt) dispositivo de codificação, dispositivo de decodificação e método dos mesmos
US10297263B2 (en) High band excitation signal generation
CN1272911C (zh) 音频信号解码装置及音频信号编码装置
JP6364518B2 (ja) オーディオ信号符号化及び復号化方法並びにオーディオ信号符号化及び復号化装置
WO2006020826A3 (en) Method and apparatus for fast encoding of data symbols according to half-weight codes
US9293143B2 (en) Bandwidth extension mode selection
CA2602806A1 (en) Methods and apparatus for encoding and decoding an highband portion of a speech signal
RU2012111784A (ru) Устройство и способ обработки сигнала и программа
KR20100086000A (ko) 오디오 신호 처리 방법 및 장치
EP2584561A4 (en) DECODING DEVICE, CODING DEVICE AND METHOD THEREFOR
JP2005107255A5 (pt)
RU2007126655A (ru) Способ создания представления результата вычисления, линейно зависимого от квадрата значения
JP2013084002A (ja) 音声コーデックの品質向上装置およびその方法
CA2912477C (en) Signal encoding and decoding methods and devices
RU2016146916A (ru) Усовершенствованная коррекция потери кадров с помощью речевой информации
JP5808092B2 (ja) 基本層及び拡張層を有する音声信号を検出する方法
JP2016035501A (ja) 音声符号化装置、音声符号化方法、音声符号化用コンピュータプログラム、音声復号装置、音声復号方法及び音声復号用コンピュータプログラム
JP2007304258A (ja) オーディオ信号符号化およびその復号化装置、方法ならびにプログラム
TH1901004699A (th) การอินทิเกรตตัวสับเปลี่ยนฮาร์มอนิกให้ใช้งานกับรุ่นก่อนหน้านี้ได้เพื่อสร้างสัญญาณเสียงผ่านโสตขึ้นใหม่โดยมีความถี่สูง
TH1601000274A (th) เครื่อง และวิธีการสำหรับการถอดรหัสหรือเข้ารหัสสัญญาณเสียงด้วยการใช้ค่าสารสนเทศพลังงานสำหรับแถบการสร้างขึ้นมาใหม่
TH77173B (th) โคเดกเสียงที่ใช้การสังเคราะห์สัญญาณรบกวนในระหว่างเฟสที่ไม่มีการใช้งาน
JP2015227912A (ja) オーディオ符号化装置、および方法
TH127544A (th) เครื่องประมวลผลสัญญาณและวิธีประมวลผลสัญญาณ ตัวเข้ารหัส และวิธีการเข้ารหัส ตัวถอนรหัสและวิธีการถอดรหัส และโปรแกรม

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]