BR112012026984A2 - Aparelho e método para modificar um sinal de áudio de entrada - Google Patents

Aparelho e método para modificar um sinal de áudio de entrada

Info

Publication number
BR112012026984A2
BR112012026984A2 BR112012026984A BR112012026984A BR112012026984A2 BR 112012026984 A2 BR112012026984 A2 BR 112012026984A2 BR 112012026984 A BR112012026984 A BR 112012026984A BR 112012026984 A BR112012026984 A BR 112012026984A BR 112012026984 A2 BR112012026984 A2 BR 112012026984A2
Authority
BR
Brazil
Prior art keywords
audio signal
input audio
modifying
excitation
spectral weighting
Prior art date
Application number
BR112012026984A
Other languages
English (en)
Other versions
BR112012026984B1 (pt
Inventor
Uhle Christian
Herre Jürgen
Hellmuth Oliver
Finauer 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 BR112012026984A2 publication Critical patent/BR112012026984A2/pt
Publication of BR112012026984B1 publication Critical patent/BR112012026984B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • 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
    • 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
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/69—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for evaluating synthetic or decoded voice signals

Landscapes

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

Abstract

APARELHO E MÉTODO PARA MODIFICAR UM SINAL DE ÁUDIO DE ENTRADA. Um aparelho para modificar um sinal de áudio de entrada compreende um determinado de excitação, um dispositivo de armazenamento e um modificador de sinal. O determinador de excitação determina um valor de um parâmetro de excitação de uma subfaixa de uma pluralidade de subfaixas do sinal de áudio de entrada com base em um conteúdo de energia da subfaixa. Ainda, o dispositivo de armazenamento armazena uma tabela de consulta que contém uma pluralidade de fatores de ponderação espectral. Um fator de ponderação espectral da pluralidade de fatores de ponderação espectral é associado um valor predefinido do parâmetro de excitação e uma subfaixa da pluralidade de subfaixas. O dispositivo de armazenamento provê um fator de ponderação espectral correspondente ao valor determinado do parâmetro de excitação e correspondente à subfaixa, para a qual o valor de parâmetro de excitação é determinado.
BR112012026984-4A 2010-04-22 2011-04-20 aparelho e método para modificar um sinal de áudio de entrada BR112012026984B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10160679.6 2010-04-22
EP10160679.6A EP2381574B1 (en) 2010-04-22 2010-04-22 Apparatus and method for modifying an input audio signal
PCT/EP2011/056355 WO2011131732A1 (en) 2010-04-22 2011-04-20 Apparatus and method for modifying an input audio signal

Publications (2)

Publication Number Publication Date
BR112012026984A2 true BR112012026984A2 (pt) 2017-10-03
BR112012026984B1 BR112012026984B1 (pt) 2021-06-08

Family

ID=42570834

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012026984-4A BR112012026984B1 (pt) 2010-04-22 2011-04-20 aparelho e método para modificar um sinal de áudio de entrada

Country Status (14)

Country Link
US (1) US8812308B2 (pt)
EP (1) EP2381574B1 (pt)
JP (1) JP5632532B2 (pt)
KR (1) KR101469339B1 (pt)
CN (1) CN102986136B (pt)
AU (1) AU2011244268B2 (pt)
BR (1) BR112012026984B1 (pt)
CA (1) CA2796948C (pt)
ES (1) ES2526761T3 (pt)
HK (1) HK1161443A1 (pt)
MX (1) MX2012012113A (pt)
PL (1) PL2381574T3 (pt)
RU (1) RU2573246C2 (pt)
WO (1) WO2011131732A1 (pt)

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CN110083714B (zh) 2013-04-05 2024-02-13 杜比实验室特许公司 用于自动文件检测的对来自基于文件的媒体的特有信息的获取、恢复和匹配
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CN109979472B (zh) 2013-09-12 2023-12-15 杜比实验室特许公司 用于各种回放环境的动态范围控制
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CN110010154B (zh) * 2019-03-26 2021-04-09 北京雷石天地电子技术有限公司 一种音量均衡方法及装置
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Also Published As

Publication number Publication date
PL2381574T3 (pl) 2015-05-29
CA2796948A1 (en) 2011-10-27
MX2012012113A (es) 2013-02-26
RU2012149697A (ru) 2014-05-27
KR101469339B1 (ko) 2014-12-04
JP5632532B2 (ja) 2014-11-26
AU2011244268B2 (en) 2014-07-24
EP2381574B1 (en) 2014-12-03
HK1161443A1 (en) 2012-08-24
US20130046546A1 (en) 2013-02-21
ES2526761T3 (es) 2015-01-15
KR20130008609A (ko) 2013-01-22
BR112012026984B1 (pt) 2021-06-08
WO2011131732A1 (en) 2011-10-27
CA2796948C (en) 2016-10-18
CN102986136B (zh) 2016-02-10
RU2573246C2 (ru) 2016-01-20
EP2381574A1 (en) 2011-10-26
US8812308B2 (en) 2014-08-19
CN102986136A (zh) 2013-03-20
JP2013537726A (ja) 2013-10-03

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Legal Events

Date Code Title Description
B15I Others concerning applications: loss of priority
B12F Other appeals [chapter 12.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 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: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/04/2011, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF