BRPI0507815A - método e equipamento para a determinação de uma estimativa - Google Patents

método e equipamento para a determinação de uma estimativa

Info

Publication number
BRPI0507815A
BRPI0507815A BRPI0507815-6A BRPI0507815A BRPI0507815A BR PI0507815 A BRPI0507815 A BR PI0507815A BR PI0507815 A BRPI0507815 A BR PI0507815A BR PI0507815 A BRPI0507815 A BR PI0507815A
Authority
BR
Brazil
Prior art keywords
estimate
determining
equipment
frequency band
signal
Prior art date
Application number
BRPI0507815-6A
Other languages
English (en)
Inventor
Michael Schug
Johannes Hilpert
Stefan Geyersberger
Max Neuendorf
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 BRPI0507815A publication Critical patent/BRPI0507815A/pt
Publication of BRPI0507815B1 publication Critical patent/BRPI0507815B1/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
    • G10L19/02—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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Control Of Ac Motors In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

"MéTODO E QUIPAMENTO PARA DETERMINAçãO DE UMA ESTIMATIVA" Para a determinação de uma estimativa da necessidade de unidades de informações para a codificação de um sinal, é levada em conta uma medida (nl) (b) para a distriuição da energia na banda de frequências (102, 106) além da interferência admissível para uma banda frequências e uma energia da banda de frequências. Com isso, é obtida uma melhor estimativa da necessidade de unidades de informações, de maneira a ser feita uma codificação mais eficiente e mais preciosa.
BRPI0507815A 2004-03-01 2005-02-17 método e equipamento para a determinação de uma estimativa BRPI0507815B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004009949A DE102004009949B4 (de) 2004-03-01 2004-03-01 Vorrichtung und Verfahren zum Ermitteln eines Schätzwertes
PCT/EP2005/001651 WO2005083680A1 (de) 2004-03-01 2005-02-17 Vorrichtung und verfahren zum ermitteln eines schätzwerts

Publications (2)

Publication Number Publication Date
BRPI0507815A true BRPI0507815A (pt) 2007-07-10
BRPI0507815B1 BRPI0507815B1 (pt) 2018-09-11

Family

ID=34894902

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0507815A BRPI0507815B1 (pt) 2004-03-01 2005-02-17 método e equipamento para a determinação de uma estimativa

Country Status (19)

Country Link
US (1) US7318028B2 (pt)
EP (3) EP1697931B1 (pt)
JP (1) JP4673882B2 (pt)
KR (1) KR100852482B1 (pt)
CN (1) CN1938758B (pt)
AT (1) ATE532173T1 (pt)
AU (1) AU2005217507B2 (pt)
BR (1) BRPI0507815B1 (pt)
CA (1) CA2559354C (pt)
DE (1) DE102004009949B4 (pt)
DK (1) DK1697931T3 (pt)
ES (3) ES2376887T3 (pt)
HK (1) HK1093813A1 (pt)
IL (1) IL176978A (pt)
NO (1) NO338917B1 (pt)
PL (2) PL3544003T3 (pt)
PT (2) PT2034473T (pt)
RU (1) RU2337414C2 (pt)
WO (1) WO2005083680A1 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2707873B1 (en) 2011-05-09 2015-04-08 Dolby International AB Method and encoder for processing a digital stereo audio signal
FR2977439A1 (fr) * 2011-06-28 2013-01-04 France Telecom Fenetres de ponderation en codage/decodage par transformee avec recouvrement, optimisees en retard.
CN110998722B (zh) * 2017-07-03 2023-11-10 杜比国际公司 低复杂性密集瞬态事件检测和译码
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
EP3483880A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
EP3483879A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
EP3483878A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder supporting a set of different loss concealment tools
CN111405419B (zh) * 2020-03-26 2022-02-15 海信视像科技股份有限公司 音频信号处理方法、装置及可读存储介质
CN116707557B (zh) * 2022-12-20 2024-05-03 荣耀终端有限公司 信道选择方法、接收机及存储介质

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DE69127842T2 (de) * 1990-03-09 1998-01-29 At & T Corp Hybride wahrnehmungsgebundene Kodierung von Audiosignalen
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
CA2090052C (en) * 1992-03-02 1998-11-24 Anibal Joao De Sousa Ferreira Method and apparatus for the perceptual coding of audio signals
EP0559348A3 (en) * 1992-03-02 1993-11-03 AT&T Corp. Rate control loop processor for perceptual encoder/decoder
ES2122021T3 (es) * 1992-06-24 1998-12-16 British Telecomm Metodo y aparato para la medicion objetiva de la calidad del habla de equipos de telecomunicacion.
JP2927660B2 (ja) * 1993-01-25 1999-07-28 シャープ株式会社 樹脂封止型半導体装置の製造方法
US5632003A (en) * 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
US5623577A (en) * 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
DE19736669C1 (de) * 1997-08-22 1998-10-22 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Erfassen eines Anschlags in einem zeitdiskreten Audiosignal sowie Vorrichtung und Verfahren zum Codieren eines Audiosignals
DE19747132C2 (de) * 1997-10-24 2002-11-28 Fraunhofer Ges Forschung Verfahren und Vorrichtungen zum Codieren von Audiosignalen sowie Verfahren und Vorrichtungen zum Decodieren eines Bitstroms
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JP3762579B2 (ja) * 1999-08-05 2006-04-05 株式会社リコー デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体
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Also Published As

Publication number Publication date
JP2007525715A (ja) 2007-09-06
NO338917B1 (no) 2016-10-31
EP2034473A2 (de) 2009-03-11
CA2559354C (en) 2011-08-02
RU2337414C2 (ru) 2008-10-27
WO2005083680A1 (de) 2005-09-09
DE102004009949A1 (de) 2005-09-29
IL176978A0 (en) 2006-12-10
ES2847237T3 (es) 2021-08-02
PT2034473T (pt) 2019-08-05
RU2006134638A (ru) 2008-04-10
HK1093813A1 (en) 2007-03-09
NO20064432L (no) 2006-09-29
KR100852482B1 (ko) 2008-08-18
CN1938758A (zh) 2007-03-28
EP2034473A3 (de) 2015-09-16
KR20060121978A (ko) 2006-11-29
EP3544003A1 (de) 2019-09-25
EP3544003B1 (de) 2020-12-23
CN1938758B (zh) 2010-11-10
PL3544003T3 (pl) 2021-07-12
ES2739544T3 (es) 2020-01-31
IL176978A (en) 2012-08-30
AU2005217507A1 (en) 2005-09-09
CA2559354A1 (en) 2005-09-09
US7318028B2 (en) 2008-01-08
EP2034473B1 (de) 2019-05-15
EP1697931A1 (de) 2006-09-06
ATE532173T1 (de) 2011-11-15
BRPI0507815B1 (pt) 2018-09-11
ES2376887T3 (es) 2012-03-20
DE102004009949B4 (de) 2006-03-09
JP4673882B2 (ja) 2011-04-20
AU2005217507B2 (en) 2008-08-14
PL2034473T3 (pl) 2019-11-29
EP1697931B1 (de) 2011-11-02
DK1697931T3 (da) 2012-02-27
PT3544003T (pt) 2021-02-04
US20070129940A1 (en) 2007-06-07

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 11/09/2018, OBSERVADAS AS CONDICOES LEGAIS.