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AR113497A1 - Función de ventana de análisis / síntesis para la transformación con solape modulada - Google Patents

Función de ventana de análisis / síntesis para la transformación con solape modulada

Info

Publication number
AR113497A1
AR113497A1 ARP180103303A ARP180103303A AR113497A1 AR 113497 A1 AR113497 A1 AR 113497A1 AR P180103303 A ARP180103303 A AR P180103303A AR P180103303 A ARP180103303 A AR P180103303A AR 113497 A1 AR113497 A1 AR 113497A1
Authority
AR
Argentina
Prior art keywords
analysis
window function
transformation
flap
modulated
Prior art date
Application number
ARP180103303A
Other languages
English (en)
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 AR113497A1 publication Critical patent/AR113497A1/es

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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
    • G10L19/02—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
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/11—Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems
    • G06F17/12—Simultaneous equations, e.g. systems of linear equations
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • 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
    • G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Discrete Mathematics (AREA)
  • Operations Research (AREA)
  • Lubricants (AREA)
  • Detection And Correction Of Errors (AREA)
  • Detergent Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Materials For Photolithography (AREA)
  • Complex Calculations (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Image Analysis (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Optical Filters (AREA)

Abstract

Se proporcionan métodos y aparatos para realizar una transformación de coseno modificada (TCMD) con una función de ventana de análisis / síntesis, utilizando una función de ventana de análisis (40, 50, 60, 70, 240) que tiene una porción serpenteante (44, 64, 244) que pasa por una función lineal (40’, 240’) en correspondencia con al menos cuatro puntos (#1, #2, #3, #4).
ARP180103303A 2017-11-10 2018-11-12 Función de ventana de análisis / síntesis para la transformación con solape modulada AR113497A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17201086.0A EP3483879A1 (en) 2017-11-10 2017-11-10 Analysis/synthesis windowing function for modulated lapped transformation

Publications (1)

Publication Number Publication Date
AR113497A1 true AR113497A1 (es) 2020-05-13

Family

ID=60301905

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP180103303A AR113497A1 (es) 2017-11-10 2018-11-12 Función de ventana de análisis / síntesis para la transformación con solape modulada

Country Status (18)

Country Link
US (2) US11562754B2 (es)
EP (2) EP3483879A1 (es)
JP (1) JP7003261B2 (es)
KR (1) KR102546602B1 (es)
CN (1) CN111602195B (es)
AR (1) AR113497A1 (es)
AU (1) AU2018365209B2 (es)
BR (1) BR112020009182A2 (es)
CA (1) CA3082279C (es)
ES (1) ES2963344T3 (es)
MX (1) MX2020004788A (es)
MY (1) MY208583A (es)
PL (1) PL3707711T3 (es)
RU (1) RU2740148C1 (es)
SG (1) SG11202004226TA (es)
TW (1) TWI703560B (es)
WO (1) WO2019092061A1 (es)
ZA (1) ZA202002523B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101757341B1 (ko) * 2013-01-29 2017-07-14 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. 저-복잡도 음조-적응 오디오 신호 양자화
CN112733363B (zh) * 2021-01-11 2022-09-20 大连理工大学 一种用于east托卡马克中三维全空间等离子体响应的模拟方法
CN117476017A (zh) * 2022-07-27 2024-01-30 华为技术有限公司 音频编解码方法、装置、存储介质及计算机程序产品

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