MX346927B - Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia. - Google Patents

Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia.

Info

Publication number
MX346927B
MX346927B MX2015009752A MX2015009752A MX346927B MX 346927 B MX346927 B MX 346927B MX 2015009752 A MX2015009752 A MX 2015009752A MX 2015009752 A MX2015009752 A MX 2015009752A MX 346927 B MX346927 B MX 346927B
Authority
MX
Mexico
Prior art keywords
predictive coding
linear predictive
frequency
spectrum
coding coefficients
Prior art date
Application number
MX2015009752A
Other languages
English (en)
Other versions
MX2015009752A (es
Inventor
Grill Bernhard
Rettelbach Nikolaus
Helmrich Christian
Döhla Stefan
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2015009752A publication Critical patent/MX2015009752A/es
Publication of MX346927B publication Critical patent/MX346927B/es

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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/26—Pre-filtering or post-filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

Abstract

La invención proporciona un codificador de audio y método para codificar una señal de audio no vocal con el fin de producir una corriente de bits a partir de la misma, en el que el codificador de audio comprende: una combinación (2, 3) de un filtro de codificación de predicción lineal (2) que tiene una pluralidad de coeficientes de codificación de predicción lineal (LC) y un convertidor de tiempo-frecuencia (3), en el que la combinación (2, 3) está configurada para filtrar y convertir un cuadro (FI) de la señal de audio (AS) en un dominio de frecuencia con el fin de emitir un espectro (SP) basado en el cuadro (FI) y en los coeficientes de codificación de predicción lineal (LC); un enfatizador de bajas frecuencias (4) configurado para calcular un espectro procesado (PS) basado en el espectro (SP), en el que se enfatizan las líneas espectrales (SL) del espectro procesado (PS) que representan una frecuencia más baja que una línea espectral de referencia (RSL); y un dispositivo de control (5) configurado para controlar el cálculo del espectro procesado (PS) por el enfatizador de bajas frecuencias (4) en función de los coeficientes de codificación de predicción lineal (LC) del filtro de codificación de predicción lineal (2) Asimismo, la invención proporciona un decodificador de audio correspondiente, un sistema, un método para decodificar una corriente de bits que contiene espectros cuantificados y una pluralidad de coeficientes de codificación de predicción lineal y un programa informático correspondiente.
MX2015009752A 2013-01-29 2014-01-28 Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia. MX346927B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361758103P 2013-01-29 2013-01-29
PCT/EP2014/051585 WO2014118152A1 (en) 2013-01-29 2014-01-28 Low-frequency emphasis for lpc-based coding in frequency domain

Publications (2)

Publication Number Publication Date
MX2015009752A MX2015009752A (es) 2015-11-06
MX346927B true MX346927B (es) 2017-04-05

Family

ID=50030281

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015009752A MX346927B (es) 2013-01-29 2014-01-28 Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia.

Country Status (20)

Country Link
US (5) US10176817B2 (es)
EP (1) EP2951814B1 (es)
JP (1) JP6148811B2 (es)
KR (1) KR101792712B1 (es)
CN (2) CN110047500B (es)
AR (2) AR094682A1 (es)
AU (1) AU2014211520B2 (es)
BR (1) BR112015018040B1 (es)
CA (1) CA2898677C (es)
ES (1) ES2635142T3 (es)
HK (1) HK1218018A1 (es)
MX (1) MX346927B (es)
MY (1) MY178306A (es)
PL (1) PL2951814T3 (es)
PT (1) PT2951814T (es)
RU (1) RU2612589C2 (es)
SG (1) SG11201505911SA (es)
TW (1) TWI536369B (es)
WO (1) WO2014118152A1 (es)
ZA (1) ZA201506314B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2898677C (en) 2013-01-29 2017-12-05 Stefan Dohla Low-frequency emphasis for lpc-based coding in frequency domain
FR3024582A1 (fr) * 2014-07-29 2016-02-05 Orange Gestion de la perte de trame dans un contexte de transition fd/lpd
US9338627B1 (en) 2015-01-28 2016-05-10 Arati P Singh Portable device for indicating emergency events
WO2018049279A1 (en) * 2016-09-09 2018-03-15 Dts, Inc. System and method for long-term prediction in audio codecs
EP3382701A1 (en) * 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for post-processing an audio signal using prediction based shaping
RU2745298C1 (ru) * 2017-10-27 2021-03-23 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство, способ или компьютерная программа для генерации аудиосигнала с расширенной полосой с использованием процессора нейронной сети
US10847172B2 (en) * 2018-12-17 2020-11-24 Microsoft Technology Licensing, Llc Phase quantization in a speech encoder
US10957331B2 (en) 2018-12-17 2021-03-23 Microsoft Technology Licensing, Llc Phase reconstruction in a speech decoder
BR112021012753A2 (pt) * 2019-01-13 2021-09-08 Huawei Technologies Co., Ltd. Método implementado por computador para codificação de áudio, dispositivo eletrônico e meio legível por computador não transitório
TWI789577B (zh) * 2020-04-01 2023-01-11 同響科技股份有限公司 音訊資料重建方法及系統

Family Cites Families (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139732A (en) * 1975-01-24 1979-02-13 Larynogograph Limited Apparatus for speech pattern derivation
JPH0738118B2 (ja) * 1987-02-04 1995-04-26 日本電気株式会社 マルチパルス符号化装置
US5548647A (en) * 1987-04-03 1996-08-20 Texas Instruments Incorporated Fixed text speaker verification method and apparatus
US4890327A (en) * 1987-06-03 1989-12-26 Itt Corporation Multi-rate digital voice coder apparatus
US5173941A (en) * 1991-05-31 1992-12-22 Motorola, Inc. Reduced codebook search arrangement for CELP vocoders
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor
JP3360423B2 (ja) * 1994-06-21 2002-12-24 三菱電機株式会社 音声強調装置
US5774846A (en) * 1994-12-19 1998-06-30 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus
US5774837A (en) * 1995-09-13 1998-06-30 Voxware, Inc. Speech coding system and method using voicing probability determination
EP0763818B1 (en) * 1995-09-14 2003-05-14 Kabushiki Kaisha Toshiba Formant emphasis method and formant emphasis filter device
JPH09230896A (ja) * 1996-02-28 1997-09-05 Sony Corp 音声合成装置
JP3357795B2 (ja) * 1996-08-16 2002-12-16 株式会社東芝 音声符号化方法および装置
SE9700772D0 (sv) * 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
GB9811019D0 (en) * 1998-05-21 1998-07-22 Univ Surrey Speech coders
JP4308345B2 (ja) * 1998-08-21 2009-08-05 パナソニック株式会社 マルチモード音声符号化装置及び復号化装置
US6975254B1 (en) * 1998-12-28 2005-12-13 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Methods and devices for coding or decoding an audio signal or bit stream
US6278972B1 (en) * 1999-01-04 2001-08-21 Qualcomm Incorporated System and method for segmentation and recognition of speech signals
JP3526776B2 (ja) * 1999-03-26 2004-05-17 ローム株式会社 音源装置及び携帯機器
US6782361B1 (en) * 1999-06-18 2004-08-24 Mcgill University Method and apparatus for providing background acoustic noise during a discontinued/reduced rate transmission mode of a voice transmission system
JP2001117573A (ja) * 1999-10-20 2001-04-27 Toshiba Corp 音声スペクトル強調方法／装置及び音声復号化装置
US6754618B1 (en) * 2000-06-07 2004-06-22 Cirrus Logic, Inc. Fast implementation of MPEG audio coding
US6748363B1 (en) * 2000-06-28 2004-06-08 Texas Instruments Incorporated TI window compression/expansion method
US6898566B1 (en) * 2000-08-16 2005-05-24 Mindspeed Technologies, Inc. Using signal to noise ratio of a speech signal to adjust thresholds for extracting speech parameters for coding the speech signal
SE0004187D0 (sv) * 2000-11-15 2000-11-15 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
JP2002318594A (ja) * 2001-04-20 2002-10-31 Sony Corp 言語処理装置および言語処理方法、並びにプログラムおよび記録媒体
US20040153313A1 (en) * 2001-05-11 2004-08-05 Roland Aubauer Method for enlarging the band width of a narrow-band filtered voice signal, especially a voice signal emitted by a telecommunication appliance
EP1423847B1 (en) * 2001-11-29 2005-02-02 Coding Technologies AB Reconstruction of high frequency components
BR0305556A (pt) * 2002-07-16 2004-09-28 Koninkl Philips Electronics Nv Método e codificador para codificar pelo menos parte de um sinal de áudio a fim de obter um sinal codificado, sinal codificado representando pelo menos parte de um sinal de áudio, meio de armazenamento, método e decodificador para decodificar um sinal codificado, transmissor, receptor, e, sistema
US8019598B2 (en) * 2002-11-15 2011-09-13 Texas Instruments Incorporated Phase locking method for frequency domain time scale modification based on a bark-scale spectral partition
SG135920A1 (en) * 2003-03-07 2007-10-29 St Microelectronics Asia Device and process for use in encoding audio data
US6988064B2 (en) * 2003-03-31 2006-01-17 Motorola, Inc. System and method for combined frequency-domain and time-domain pitch extraction for speech signals
WO2004097798A1 (ja) * 2003-05-01 2004-11-11 Fujitsu Limited 音声復号化装置、音声復号化方法、プログラム、記録媒体
DE10321983A1 (de) * 2003-05-15 2004-12-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Einbetten einer binären Nutzinformation in ein Trägersignal
US7640157B2 (en) * 2003-09-26 2009-12-29 Ittiam Systems (P) Ltd. Systems and methods for low bit rate audio coders
CA2457988A1 (en) 2004-02-18 2005-08-18 Voiceage Corporation Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization
ES2294506T3 (es) * 2004-05-14 2008-04-01 Loquendo S.P.A. Reduccion de ruido para el reconocimiento automatico del habla.
US7536302B2 (en) * 2004-07-13 2009-05-19 Industrial Technology Research Institute Method, process and device for coding audio signals
EP2273494A3 (en) * 2004-09-17 2012-11-14 Panasonic Corporation Scalable encoding apparatus, scalable decoding apparatus
US20070147518A1 (en) * 2005-02-18 2007-06-28 Bruno Bessette Methods and devices for low-frequency emphasis during audio compression based on ACELP/TCX
US20100023575A1 (en) * 2005-03-11 2010-01-28 Agency For Science, Technology And Research Predictor
US7599833B2 (en) * 2005-05-30 2009-10-06 Electronics And Telecommunications Research Institute Apparatus and method for coding residual signals of audio signals into a frequency domain and apparatus and method for decoding the same
RU2414009C2 (ru) * 2006-01-18 2011-03-10 ЭлДжи ЭЛЕКТРОНИКС ИНК. Устройство и способ для кодирования и декодирования сигнала
WO2007088853A1 (ja) * 2006-01-31 2007-08-09 Matsushita Electric Industrial Co., Ltd. 音声符号化装置、音声復号装置、音声符号化システム、音声符号化方法及び音声復号方法
EP2118892B1 (en) * 2007-02-12 2010-07-14 Dolby Laboratories Licensing Corporation Improved ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners
US20110022924A1 (en) * 2007-06-14 2011-01-27 Vladimir Malenovsky Device and Method for Frame Erasure Concealment in a PCM Codec Interoperable with the ITU-T Recommendation G. 711
US8515767B2 (en) * 2007-11-04 2013-08-20 Qualcomm Incorporated Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs
KR101439205B1 (ko) * 2007-12-21 2014-09-11 삼성전자주식회사 오디오 매트릭스 인코딩 및 디코딩 방법 및 장치
EP2077551B1 (en) * 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
EP2410522B1 (en) * 2008-07-11 2017-10-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio signal encoder, method for encoding an audio signal and computer program
CA2730315C (en) * 2008-07-11 2014-12-16 Jeremie Lecomte Audio encoder and decoder for encoding frames of sampled audio signals
AU2009267459B2 (en) * 2008-07-11 2014-01-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, methods for encoding and decoding an audio signal, audio stream and computer program
US8457975B2 (en) * 2009-01-28 2013-06-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program
MX2012004116A (es) 2009-10-08 2012-05-22 Fraunhofer Ges Forschung Decodificador multimodo para señal de audio, codificador multimodo para señal de audio, metodo y programa de computacion que usan un modelado de ruido en base a linealidad-prediccion-codi ficacion.
EP2489041B1 (en) * 2009-10-15 2020-05-20 VoiceAge Corporation Simultaneous time-domain and frequency-domain noise shaping for tdac transforms
KR101411759B1 (ko) * 2009-10-20 2014-06-25 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 신호 인코더, 오디오 신호 디코더, 앨리어싱-소거를 이용하여 오디오 신호를 인코딩 또는 디코딩하는 방법
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
WO2012144128A1 (ja) * 2011-04-20 2012-10-26 パナソニック株式会社 音声音響符号化装置、音声音響復号装置、およびこれらの方法
US9934780B2 (en) * 2012-01-17 2018-04-03 GM Global Technology Operations LLC Method and system for using sound related vehicle information to enhance spoken dialogue by modifying dialogue's prompt pitch
EP2673776B1 (en) * 2012-01-20 2015-06-17 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for audio encoding and decoding employing sinusoidal substitution
CA2898677C (en) 2013-01-29 2017-12-05 Stefan Dohla Low-frequency emphasis for lpc-based coding in frequency domain
US20140358529A1 (en) * 2013-05-29 2014-12-04 Tencent Technology (Shenzhen) Company Limited Systems, Devices and Methods for Processing Speech Signals

Also Published As

Publication number Publication date
JP6148811B2 (ja) 2017-06-14
US20180240467A1 (en) 2018-08-23
CA2898677A1 (en) 2014-08-07
CN105122357A (zh) 2015-12-02
CN105122357B (zh) 2019-04-23
BR112015018040A2 (es) 2017-07-11
JP2016508618A (ja) 2016-03-22
EP2951814B1 (en) 2017-05-10
PT2951814T (pt) 2017-07-25
RU2015136223A (ru) 2017-03-06
SG11201505911SA (en) 2015-08-28
HK1218018A1 (zh) 2017-01-27
US11568883B2 (en) 2023-01-31
PL2951814T3 (pl) 2017-10-31
KR101792712B1 (ko) 2017-11-02
US20230087652A1 (en) 2023-03-23
CN110047500B (zh) 2023-09-05
MY178306A (en) 2020-10-07
BR112015018040B1 (pt) 2022-01-18
TWI536369B (zh) 2016-06-01
RU2612589C2 (ru) 2017-03-09
US20150332695A1 (en) 2015-11-19
TW201435861A (zh) 2014-09-16
KR20150110708A (ko) 2015-10-02
AU2014211520A1 (en) 2015-09-17
US10692513B2 (en) 2020-06-23
WO2014118152A1 (en) 2014-08-07
US20200327896A1 (en) 2020-10-15
US10176817B2 (en) 2019-01-08
ES2635142T3 (es) 2017-10-02
CN110047500A (zh) 2019-07-23
EP2951814A1 (en) 2015-12-09
AU2014211520B2 (en) 2017-04-06
CA2898677C (en) 2017-12-05
MX2015009752A (es) 2015-11-06
AR094682A1 (es) 2015-08-19
US20180293993A9 (en) 2018-10-11
ZA201506314B (en) 2016-07-27
US20240119953A1 (en) 2024-04-11
AR115901A2 (es) 2021-03-10
US11854561B2 (en) 2023-12-26

Similar Documents

Publication Publication Date Title
MX2015009752A (es) Enfasis de bajas frecuencias para codificacion basada en lpc (codificacion de predicion lineal) en el dominio de frecuencia.
AR123837A2 (es) Codificador de audio para la codificación de una señal de múltiples canales, un decodificador de audio para la decodificación de una señal de audio codificada, métodos y programa de computación
MY184661A (en) Mdct-based complex prediction stereo coding
JP2011522472A5 (es)
RS53336B (en) AUDIO DECODE USING EFFECTIVE CHANNEL CONNECTION
TW201129970A (en) Audio signal encoder, audio signal decoder, method for encoding or decoding and audio signal using an aliasing-cancellation
MY162251A (en) Audio signal encoder,audio signal decoder,method for providing an encoded representation of an audio content,method for providing a decoded representation of an audio content and computer program for use in low delay applications
MX2016011692A (es) Codificador, descodificador y metodo para codificar y descodificar.
MY192540A (en) Audio encoder and decoder using a frequency domain processor, a time domain processor, and a cross processor for continuous initialization
SG194706A1 (en) Apparatus and method for audio encoding and decoding employing sinusoidalsubstitution
MX2017011494A (es) Codificador de audio, decodificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada.
MY185176A (en) 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
MY160265A (en) Apparatus and Method for Encoding and Decoding an Audio Signal Using an Aligned Look-Ahead Portion
WO2011059254A3 (en) An apparatus for processing a signal and method thereof
MX2016004923A (es) Concepto para codificar una señal de audio y decodificar una señal de audio usando informacion de conformacion espectral relacionada con la voz.
MX2019012711A (es) Decodificador y codificador de audio.
RU2016105517A (ru) Заполнение шумом при многоканальном кодировании аудио
MY187944A (en) Concept for encoding an audio signal and decoding an audio signal using deterministic and noise like information
MY176406A (en) Encoder, decoder, system and method employing a residual concept for parametric audio object coding
ATE547786T1 (de) Codierungseinrichtung und codierungsverfahren
MX2015009753A (es) Cuantificacion de señales de audio adaptables por tonalidad de baja complejidad.
MY163240A (en) Signal encoding and decoding methods and devices
TH1501004235A (th) การเน้นย้ำความสำคัญของความถี่ต่ำสำหรับการลงรหัสที่มีแอลพีซีเป็นพื้นฐานในโดเมนความถี่
AU2014200719B2 (en) Mdct-based complex prediction stereo coding

Legal Events

Date Code Title Description
HH Correction or change in general
FG Grant or registration