MX346012B - Aparato y metodo para procesar una señal codificada y codificador y metodo par a generar una señal codificada. - Google Patents

Aparato y metodo para procesar una señal codificada y codificador y metodo par a generar una señal codificada.

Info

Publication number
MX346012B
MX346012B MX2015009599A MX2015009599A MX346012B MX 346012 B MX346012 B MX 346012B MX 2015009599 A MX2015009599 A MX 2015009599A MX 2015009599 A MX2015009599 A MX 2015009599A MX 346012 B MX346012 B MX 346012B
Authority
MX
Mexico
Prior art keywords
encoded signal
bass post
filter
audio signal
encoded
Prior art date
Application number
MX2015009599A
Other languages
English (en)
Other versions
MX2015009599A (es
Inventor
Manfred Lutzky
Bernhard Grill
Markus Multrus
Guillaume Fuchs
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 MX2015009599A publication Critical patent/MX2015009599A/es
Publication of MX346012B publication Critical patent/MX346012B/es

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
    • G10L19/02—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
    • G10L19/0204—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 subband decomposition
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

Un aparato para procesar una señal codificada (110), la señal codificada comprende una señal de audio codificada que tiene información sobre un retardo tonal o una ganancia tonal, y un parámetro de control de filtro de frecuencias bajas posterior (101), comprende: un decodificador de señal de audio (110) para decodificar una señal de audio codificada utilizando la información sobre el retardo tonal o la ganancia tonal para obtener una señal de audio decodificada (103); un filtro de frecuencias bajas posterior controlable (112) para filtrar la señal de audio decodificada (103) para obtener una señal procesada (113), donde el filtro de frecuencias bajas posterior controlable (112) tiene la característica variable de filtro de frecuencias bajas posterior controlable mediante el parámetro de control de filtro de frecuencias bajas posterior (101); y un controlador (114) para configurar la característica variable de filtro de frecuencias bajas posterior de acuerdo con el parámetro de control de filtro de frecuencias bajas posterior (101) incluida en la señal codificada (102).
MX2015009599A 2013-01-29 2014-01-28 Aparato y metodo para procesar una señal codificada y codificador y metodo par a generar una señal codificada. MX346012B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361758075P 2013-01-29 2013-01-29
PCT/EP2014/051593 WO2014118157A1 (en) 2013-01-29 2014-01-28 Apparatus and method for processing an encoded signal and encoder and method for generating an encoded signal

Publications (2)

Publication Number Publication Date
MX2015009599A MX2015009599A (es) 2015-11-25
MX346012B true MX346012B (es) 2017-02-28

Family

ID=50029032

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015009599A MX346012B (es) 2013-01-29 2014-01-28 Aparato y metodo para procesar una señal codificada y codificador y metodo par a generar una señal codificada.

Country Status (20)

Country Link
US (1) US9640191B2 (es)
EP (1) EP2936484B1 (es)
JP (1) JP6253674B2 (es)
KR (1) KR101757344B1 (es)
CN (1) CN105122358B (es)
AR (1) AR094680A1 (es)
AU (1) AU2014211525B2 (es)
BR (1) BR112015018022B1 (es)
CA (1) CA2898575C (es)
ES (1) ES2659182T3 (es)
HK (1) HK1216799A1 (es)
MX (1) MX346012B (es)
MY (1) MY172712A (es)
PL (1) PL2936484T3 (es)
PT (1) PT2936484T (es)
RU (1) RU2622860C2 (es)
SG (1) SG11201505910PA (es)
TW (1) TWI540570B (es)
WO (1) WO2014118157A1 (es)
ZA (1) ZA201506270B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY191093A (en) * 2016-02-17 2022-05-30 Fraunhofer Ges Forschung Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing
EP3992743B1 (en) * 2020-11-03 2023-08-30 Volkswagen Aktiengesellschaft Vehicle, apparatus for a vehicle, computer program, and method for processing information for communication in a tele-operated driving session

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI980132A (fi) * 1998-01-21 1999-07-22 Nokia Mobile Phones Ltd Adaptoituva jälkisuodatin
US7233896B2 (en) * 2002-07-30 2007-06-19 Motorola Inc. Regular-pulse excitation speech coder
WO2006049204A1 (ja) * 2004-11-05 2006-05-11 Matsushita Electric Industrial Co., Ltd. 符号化装置、復号化装置、符号化方法及び復号化方法
US20070282601A1 (en) * 2006-06-02 2007-12-06 Texas Instruments Inc. Packet loss concealment for a conjugate structure algebraic code excited linear prediction decoder
US8073697B2 (en) * 2006-09-12 2011-12-06 International Business Machines Corporation Establishing a multimodal personality for a multimodal application
JPWO2008072701A1 (ja) * 2006-12-13 2010-04-02 パナソニック株式会社 ポストフィルタおよびフィルタリング方法
CN101622666B (zh) * 2007-03-02 2012-08-15 艾利森电话股份有限公司 非因果后置滤波器
JP5291004B2 (ja) * 2007-03-02 2013-09-18 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） 通信ネットワークにおける方法及び装置
EP2116998B1 (en) * 2007-03-02 2018-08-15 III Holdings 12, LLC Post-filter, decoding device, and post-filter processing method
MY146431A (en) 2007-06-11 2012-08-15 Fraunhofer Ges Forschung Audio encoder for encoding an audio signal having an impulse-like portion and stationary portion, encoding methods, decoder, decoding method, and encoded audio signal
RU2520402C2 (ru) * 2008-10-08 2014-06-27 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Переключаемая аудио кодирующая/декодирующая схема с мультиразрешением
KR101622950B1 (ko) * 2009-01-28 2016-05-23 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 그 장치
MX2011008685A (es) * 2009-02-26 2011-09-06 Panasonic Corp Codificador, decodificador y metodo para los mismos.
CA3160488C (en) 2010-07-02 2023-09-05 Dolby International Ab Audio decoding with selective post filtering
US8738385B2 (en) * 2010-10-20 2014-05-27 Broadcom Corporation Pitch-based pre-filtering and post-filtering for compression of audio signals
MY164797A (en) * 2011-02-14 2018-01-30 Fraunhofer Ges Zur Foederung Der Angewandten Forschung E V Apparatus and method for processing a decoded audio signal in a spectral domain

Also Published As

Publication number Publication date
KR20150117671A (ko) 2015-10-20
TWI540570B (zh) 2016-07-01
WO2014118157A1 (en) 2014-08-07
RU2622860C2 (ru) 2017-06-20
US9640191B2 (en) 2017-05-02
PL2936484T3 (pl) 2018-06-29
ES2659182T3 (es) 2018-03-14
AU2014211525A1 (en) 2015-08-27
BR112015018022A2 (es) 2017-08-22
US20150332700A1 (en) 2015-11-19
RU2015136851A (ru) 2017-03-06
CN105122358A (zh) 2015-12-02
EP2936484B1 (en) 2018-01-03
KR101757344B1 (ko) 2017-07-14
EP2936484A1 (en) 2015-10-28
MX2015009599A (es) 2015-11-25
MY172712A (en) 2019-12-11
CN105122358B (zh) 2019-02-15
CA2898575A1 (en) 2014-08-07
AR094680A1 (es) 2015-08-19
JP2016513270A (ja) 2016-05-12
HK1216799A1 (zh) 2016-12-02
BR112015018022B1 (pt) 2022-01-04
SG11201505910PA (en) 2015-08-28
ZA201506270B (en) 2016-07-27
PT2936484T (pt) 2018-03-29
JP6253674B2 (ja) 2017-12-27
AU2014211525B2 (en) 2016-09-01
CA2898575C (en) 2018-09-11
TW201443884A (zh) 2014-11-16

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