BR112015011820A2 - sistema para potencialização e restauração percebida de sinais de áudio comprimidos - Google Patents

sistema para potencialização e restauração percebida de sinais de áudio comprimidos

Info

Publication number
BR112015011820A2
BR112015011820A2 BR112015011820A BR112015011820A BR112015011820A2 BR 112015011820 A2 BR112015011820 A2 BR 112015011820A2 BR 112015011820 A BR112015011820 A BR 112015011820A BR 112015011820 A BR112015011820 A BR 112015011820A BR 112015011820 A2 BR112015011820 A2 BR 112015011820A2
Authority
BR
Brazil
Prior art keywords
signal
audio signals
restoration
perceived
enhancement
Prior art date
Application number
BR112015011820A
Other languages
English (en)
Other versions
BR112015011820B1 (pt
Inventor
Arthur Joseph Soulodre Gilbert
Original Assignee
Harman Int Ind
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 Harman Int Ind filed Critical Harman Int Ind
Publication of BR112015011820A2 publication Critical patent/BR112015011820A2/pt
Publication of BR112015011820B1 publication Critical patent/BR112015011820B1/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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/02—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
    • G10L19/0208—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
    • G10L19/02—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
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers 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

Landscapes

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

Abstract

resumo patente de invenção: "sistema para potencialização e restauração percebida de sinais de áudio comprimidos". um sistema para processamento de áudio comprimido inclui um módulo potencializador de sinal configurado para gerar um ou mais tratamentos de sinal. os um ou mais tratamentos de sinal podem ser gerados pelo módulo potencializador de sinal com base na análise do sinal de entrada de áudio. como alternativa, ou além disso, as características do sinal de entrada de áudio podem ser providas para o módulo potencializador de sinal para uso em geração dos um ou mais tratamentos de sinal. os um ou mais tratamentos de sinal podem ser adicionados para os sinais de áudio.
BR112015011820-8A 2012-11-26 2013-11-01 Sistema para potencialização e restauração percebida de sinais de áudio comprimidos BR112015011820B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201261730053P 2012-11-26 2012-11-26
US61/730,053 2012-11-26
US13/842,479 US9135920B2 (en) 2012-11-26 2013-03-15 System for perceived enhancement and restoration of compressed audio signals
US13/842,479 2013-03-15
PCT/US2013/067981 WO2014081548A1 (en) 2012-11-26 2013-11-01 System, computer-readable storage medium and method for repair of compressed audio signals

Publications (2)

Publication Number Publication Date
BR112015011820A2 true BR112015011820A2 (pt) 2017-07-11
BR112015011820B1 BR112015011820B1 (pt) 2021-11-09

Family

ID=50774017

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015011820-8A BR112015011820B1 (pt) 2012-11-26 2013-11-01 Sistema para potencialização e restauração percebida de sinais de áudio comprimidos

Country Status (7)

Country Link
US (3) US9135920B2 (pt)
EP (1) EP2923355B1 (pt)
JP (1) JP6212567B2 (pt)
KR (1) KR101825507B1 (pt)
CN (1) CN104823237B (pt)
BR (1) BR112015011820B1 (pt)
WO (1) WO2014081548A1 (pt)

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CA3018039C (en) * 2016-03-24 2023-08-29 Harman International Industries, Incorporated Signal quality-based enhancement and compensation of compressed audio signals
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Also Published As

Publication number Publication date
JP6212567B2 (ja) 2017-10-11
BR112015011820B1 (pt) 2021-11-09
KR101825507B1 (ko) 2018-02-05
US20140149126A1 (en) 2014-05-29
CN104823237B (zh) 2019-06-11
JP2016502139A (ja) 2016-01-21
US9135920B2 (en) 2015-09-15
US9576584B2 (en) 2017-02-21
KR20150088253A (ko) 2015-07-31
US20150379999A1 (en) 2015-12-31
WO2014081548A1 (en) 2014-05-30
US20170162208A1 (en) 2017-06-08
EP2923355A1 (en) 2015-09-30
US10311880B2 (en) 2019-06-04
CN104823237A (zh) 2015-08-05
EP2923355B1 (en) 2018-07-04

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 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 01/11/2013, OBSERVADAS AS CONDICOES LEGAIS.