BR112015017632B1 - Aparelho e método para gerar um sinal melhorado da frequência utilizando nivelamento temporal de sub-bandas - Google Patents

Aparelho e método para gerar um sinal melhorado da frequência utilizando nivelamento temporal de sub-bandas Download PDF

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BR112015017632B1
BR112015017632B1 BR112015017632-1A BR112015017632A BR112015017632B1 BR 112015017632 B1 BR112015017632 B1 BR 112015017632B1 BR 112015017632 A BR112015017632 A BR 112015017632A BR 112015017632 B1 BR112015017632 B1 BR 112015017632B1
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frequency
signal
audio signal
enhancement
subband signals
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BR112015017632-1A
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Portuguese (pt)
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BR112015017632A2 (pt
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Disch Sascha
Geiger Ralf
Helmrich Christian
Multrus Markus
Schmidt Konstantin
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Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
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Publication of BR112015017632B1 publication Critical patent/BR112015017632B1/pt

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    • 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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • 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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS 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
    • G10L21/0388—Details of processing therefor
    • 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
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • 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
    • G10L19/02—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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
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  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
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  • Acoustics & Sound (AREA)
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  • Circuit Arrangements For Discharge Lamps (AREA)
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BR112015017632-1A 2013-01-29 2014-01-28 Aparelho e método para gerar um sinal melhorado da frequência utilizando nivelamento temporal de sub-bandas BR112015017632B1 (pt)

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US201361758090P 2013-01-29 2013-01-29
US61/758,090 2013-01-29
PCT/EP2014/051601 WO2014118160A1 (en) 2013-01-29 2014-01-28 Apparatus and method for generating a frequency enhanced signal using temporal smoothing of subbands

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BR112015017632B1 true BR112015017632B1 (pt) 2022-06-07

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BR112015017868-5A BR112015017868B1 (pt) 2013-01-29 2014-01-28 Aparelho e método para gerar um sinal de melhoria de frequência utilizando uma operação de limitação de energia
BR112015017632-1A BR112015017632B1 (pt) 2013-01-29 2014-01-28 Aparelho e método para gerar um sinal melhorado da frequência utilizando nivelamento temporal de sub-bandas
BR112015017866-9A BR112015017866B1 (pt) 2013-01-29 2014-01-28 Aparelho e método para gerar um sinal melhorado da frequência utilizando a formação do sinal de melhoria

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MX2015009536A (es) 2015-10-30
MY172161A (en) 2019-11-15
BR112015017866A2 (pt) 2018-05-08
CA2899072A1 (en) 2014-08-07
MY185159A (en) 2021-04-30
BR112015017866B1 (pt) 2021-12-21
EP2951825B1 (en) 2021-11-24
ZA201506268B (en) 2016-11-30
US9741353B2 (en) 2017-08-22
RU2624104C2 (ru) 2017-06-30
JP6301368B2 (ja) 2018-03-28
EP3136386A1 (en) 2017-03-01
AR094670A1 (es) 2015-08-19
RU2625945C2 (ru) 2017-07-19
TW201443887A (zh) 2014-11-16
EP2951825A1 (en) 2015-12-09
WO2014118160A1 (en) 2014-08-07
AU2014211528B2 (en) 2016-10-20
AU2014211527A1 (en) 2015-08-06
AU2014211529B2 (en) 2016-12-22
AR094672A1 (es) 2015-08-19
JP6321684B2 (ja) 2018-05-09
ES2905846T3 (es) 2022-04-12
AU2014211527B2 (en) 2017-03-30
CN105103228A (zh) 2015-11-25
ES2899781T3 (es) 2022-03-14
EP2951826B1 (en) 2022-04-20
KR20150109416A (ko) 2015-10-01
CA2899072C (en) 2017-12-19
MX2015009598A (es) 2015-11-25
PT2951825T (pt) 2022-02-02
TW201435860A (zh) 2014-09-16
BR112015017868B1 (pt) 2022-02-15
JP2016510428A (ja) 2016-04-07
CA2899080C (en) 2018-10-02
BR112015017868A2 (enExample) 2017-08-22
MX351191B (es) 2017-10-04
CN105264601B (zh) 2019-05-31
TWI524332B (zh) 2016-03-01
SG11201505883WA (en) 2015-08-28
MY172710A (en) 2019-12-11
MX346945B (es) 2017-04-06
CA2899080A1 (en) 2014-08-07
KR20150114483A (ko) 2015-10-12
EP2951826A1 (en) 2015-12-09
EP2951827A1 (en) 2015-12-09
CN105103228B (zh) 2019-04-09
US10354665B2 (en) 2019-07-16
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