PT3175454T - Aparelho e método para processamento de um sinal de áudio utilizando um pós-filtro harmónico - Google Patents

Aparelho e método para processamento de um sinal de áudio utilizando um pós-filtro harmónico

Info

Publication number
PT3175454T
PT3175454T PT15742238T PT15742238T PT3175454T PT 3175454 T PT3175454 T PT 3175454T PT 15742238 T PT15742238 T PT 15742238T PT 15742238 T PT15742238 T PT 15742238T PT 3175454 T PT3175454 T PT 3175454T
Authority
PT
Portugal
Prior art keywords
filter
processing
audio signal
harmonic post
harmonic
Prior art date
Application number
PT15742238T
Other languages
English (en)
Inventor
Neusinger Matthias
Dietz Martin
Jander Manuel
Markovic Goran
Disch Sascha
Helmrich Christian
Ravelli Emmanuel
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 PT3175454T publication Critical patent/PT3175454T/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
    • G10L19/04—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G01L21/02—Vacuum gauges having a compression chamber in which gas, whose pressure is to be measured, is compressed
    • 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
    • G10L19/02—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
    • G10L19/0212—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 orthogonal transformation
    • 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

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)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Stereophonic System (AREA)
PT15742238T 2014-07-28 2015-07-24 Aparelho e método para processamento de um sinal de áudio utilizando um pós-filtro harmónico PT3175454T (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14178820.8A EP2980799A1 (en) 2014-07-28 2014-07-28 Apparatus and method for processing an audio signal using a harmonic post-filter

Publications (1)

Publication Number Publication Date
PT3175454T true PT3175454T (pt) 2018-10-08

Family

ID=51224878

Family Applications (1)

Application Number Title Priority Date Filing Date
PT15742238T PT3175454T (pt) 2014-07-28 2015-07-24 Aparelho e método para processamento de um sinal de áudio utilizando um pós-filtro harmónico

Country Status (17)

Country Link
US (4) US10242688B2 (pt)
EP (2) EP2980799A1 (pt)
JP (4) JP6546264B2 (pt)
KR (1) KR101959211B1 (pt)
CN (2) CN106663444B (pt)
AR (1) AR101340A1 (pt)
AU (1) AU2015295603B2 (pt)
CA (1) CA2955255C (pt)
ES (1) ES2676584T3 (pt)
MX (1) MX360555B (pt)
MY (1) MY179023A (pt)
PL (1) PL3175454T3 (pt)
PT (1) PT3175454T (pt)
RU (1) RU2665259C1 (pt)
SG (1) SG11201700696UA (pt)
TW (1) TWI590238B (pt)
WO (1) WO2016016121A1 (pt)

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CN110444219B (zh) 2014-07-28 2023-06-13 弗劳恩霍夫应用研究促进协会 选择第一编码演算法或第二编码演算法的装置与方法
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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
EP3483880A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
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
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
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
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CN113302684B (zh) 2019-01-13 2024-05-17 华为技术有限公司 高分辨率音频编解码
CN112467744B (zh) * 2020-12-11 2022-06-17 东北电力大学 面向配网频率偏移的apf抗频扰谐波指令电流预测方法
EP4120256A1 (en) * 2021-07-14 2023-01-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Processor for generating a prediction spectrum based on long-term prediction and/or harmonic post-filtering

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Also Published As

Publication number Publication date
MY179023A (en) 2020-10-26
AU2015295603B2 (en) 2018-02-08
KR101959211B1 (ko) 2019-03-18
JP6877488B2 (ja) 2021-05-26
CN106663444A (zh) 2017-05-10
RU2665259C1 (ru) 2018-08-28
JP2021064009A (ja) 2021-04-22
JP2019194716A (ja) 2019-11-07
US20190198034A1 (en) 2019-06-27
JP2017522604A (ja) 2017-08-10
JP7340553B2 (ja) 2023-09-07
US20210125624A1 (en) 2021-04-29
CA2955255C (en) 2019-04-30
JP6546264B2 (ja) 2019-07-17
TWI590238B (zh) 2017-07-01
EP3175454A1 (en) 2017-06-07
EP2980799A1 (en) 2016-02-03
US20230282223A1 (en) 2023-09-07
US11694704B2 (en) 2023-07-04
AU2015295603A1 (en) 2017-03-16
TW201618086A (zh) 2016-05-16
WO2016016121A1 (en) 2016-02-04
JP2023072014A (ja) 2023-05-23
ES2676584T3 (es) 2018-07-23
SG11201700696UA (en) 2017-02-27
US11037580B2 (en) 2021-06-15
MX360555B (es) 2018-11-07
US20170140769A1 (en) 2017-05-18
KR20170035987A (ko) 2017-03-31
EP3175454B1 (en) 2018-06-20
BR112017001631A2 (pt) 2017-11-21
CN112420061A (zh) 2021-02-26
CN106663444B (zh) 2020-12-01
US10242688B2 (en) 2019-03-26
PL3175454T3 (pl) 2018-11-30
AR101340A1 (es) 2016-12-14
CA2955255A1 (en) 2016-02-04
MX2017001242A (es) 2017-07-07

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