PL3751570T3 - Ulepszona transpozycja harmonicznych - Google Patents

Ulepszona transpozycja harmonicznych

Info

Publication number
PL3751570T3
PL3751570T3 PL20188167T PL20188167T PL3751570T3 PL 3751570 T3 PL3751570 T3 PL 3751570T3 PL 20188167 T PL20188167 T PL 20188167T PL 20188167 T PL20188167 T PL 20188167T PL 3751570 T3 PL3751570 T3 PL 3751570T3
Authority
PL
Poland
Prior art keywords
harmonic transposition
improved harmonic
improved
transposition
harmonic
Prior art date
Application number
PL20188167T
Other languages
English (en)
Inventor
Per Ekstrand
Lars Villemoes
Original Assignee
Dolby International Ab
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 Dolby International Ab filed Critical Dolby International Ab
Priority claimed from EP13182785.9A external-priority patent/EP2674943B1/en
Publication of PL3751570T3 publication Critical patent/PL3751570T3/pl

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech 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
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0212Speech 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/022Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/16Vocoder architecture
    • G10L19/18Vocoders using multiple modes
    • G10L19/24Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech 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
    • G10L21/04Time compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Inorganic Insulating Materials (AREA)
PL20188167T 2009-01-28 2010-03-12 Ulepszona transpozycja harmonicznych PL3751570T3 (pl)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
SE0900087 2009-01-28
US24362409P 2009-09-18 2009-09-18
EP13182785.9A EP2674943B1 (en) 2009-01-28 2010-03-12 Improved harmonic transposition
EP20188167.9A EP3751570B1 (en) 2009-01-28 2010-03-12 Improved harmonic transposition
EP17175871.7A EP3246919B1 (en) 2009-01-28 2010-03-12 Improved harmonic transposition
EP10708984.9A EP2392005B1 (en) 2009-01-28 2010-03-12 Improved harmonic transposition
EP15176581.5A EP2953131B1 (en) 2009-01-28 2010-03-12 Improved harmonic transposition
PCT/EP2010/053222 WO2010086461A1 (en) 2009-01-28 2010-03-12 Improved harmonic transposition

Publications (1)

Publication Number Publication Date
PL3751570T3 true PL3751570T3 (pl) 2022-03-07

Family

ID=50896666

Family Applications (2)

Application Number Title Priority Date Filing Date
PL20188167T PL3751570T3 (pl) 2009-01-28 2010-03-12 Ulepszona transpozycja harmonicznych
PL21211941.6T PL3985666T3 (pl) 2009-01-28 2010-03-12 Ulepszona transpozycja harmonicznych

Family Applications After (1)

Application Number Title Priority Date Filing Date
PL21211941.6T PL3985666T3 (pl) 2009-01-28 2010-03-12 Ulepszona transpozycja harmonicznych

Country Status (7)

Country Link
US (1) US11562755B2 (pl)
EP (2) EP4120254A1 (pl)
BR (4) BR122019023709B1 (pl)
CA (2) CA3162808C (pl)
ES (3) ES2930054T3 (pl)
HK (2) HK1165077A1 (pl)
PL (2) PL3751570T3 (pl)

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WO2011047887A1 (en) * 2009-10-21 2011-04-28 Dolby International Ab Oversampling in a combined transposer filter bank
EP2980795A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor
EP2980792A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating an enhanced signal using independent noise-filling
KR20220104049A (ko) * 2019-11-27 2022-07-25 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 코딩을 위한 음조 신호의 주파수 도메인 장기 예측을 위한 인코더, 디코더, 인코딩 방법 및 디코딩 방법
CN111294367B (zh) * 2020-05-14 2020-09-01 腾讯科技(深圳)有限公司 音频信号后处理方法和装置、存储介质及电子设备

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Also Published As

Publication number Publication date
US20210383817A1 (en) 2021-12-09
BR122019023713B1 (pt) 2020-10-27
ES2826324T3 (es) 2021-05-18
EP3985666B1 (en) 2022-08-17
US11562755B2 (en) 2023-01-24
HK1213079A1 (zh) 2016-06-24
CA3162808C (en) 2023-10-10
CA3210604A1 (en) 2010-08-05
HK1165077A1 (en) 2012-09-28
BR122019023709B1 (pt) 2020-10-27
EP4120254A1 (en) 2023-01-18
ES2930054T3 (es) 2022-12-05
PL3985666T3 (pl) 2023-05-08
ES2906255T3 (es) 2022-04-13
CA3162808A1 (en) 2010-08-05
BR122019023712B1 (pt) 2020-10-27
BRPI1007528B1 (pt) 2020-10-13
BRPI1007528A2 (pt) 2019-12-24
EP3985666A1 (en) 2022-04-20

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