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MX2017014734A - Post-procesador, pre-procesador, codificador de audio, decodificador de audio y metodos relacionados para mejorar el procesamiento de transitorios. - Google Patents

Post-procesador, pre-procesador, codificador de audio, decodificador de audio y metodos relacionados para mejorar el procesamiento de transitorios.

Info

Publication number
MX2017014734A
MX2017014734A MX2017014734A MX2017014734A MX2017014734A MX 2017014734 A MX2017014734 A MX 2017014734A MX 2017014734 A MX2017014734 A MX 2017014734A MX 2017014734 A MX2017014734 A MX 2017014734A MX 2017014734 A MX2017014734 A MX 2017014734A
Authority
MX
Mexico
Prior art keywords
processor
high frequency
frequency band
post
audio
Prior art date
Application number
MX2017014734A
Other languages
English (en)
Other versions
MX371223B (es
Inventor
Reutelhuber Franz
Ghido Florin
Disch Sascha
adami Alexander
Herre Jurgen
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 MX2017014734A publication Critical patent/MX2017014734A/es
Publication of MX371223B publication Critical patent/MX371223B/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/005—Tone control or bandwidth control in amplifiers of digital signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/165—Equalizers; Volume or gain control in limited frequency bands

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)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)

Abstract

Un post-procesador de audio (100) para post-procesar una señal de audio (102) que contiene información de ganancia de alta frecuencia variable en el tiempo (104) en forma de información lateral comprende: un extractor de banda (110) para extraer una banda de alta frecuencia (112) de la señal de audio (102) y una banda de baja frecuencia (114) de la señal de audio (102); un procesador de banda alta (120) para ejecutar una modificación variable en el tiempo de la banda de alta frecuencia (112) de conformidad con la información de ganancia de alta frecuencia variable en el tiempo (104) para obtener una banda de alta frecuencia procesada (122); y un combinador (130) para combinar la banda de alta frecuencia procesada (122) y la banda de baja frecuencia (114). Asimismo, se ilustra un pre-procesador.
MX2017014734A 2016-02-17 2017-02-10 Post-procesador, pre-procesador, codificador de audio, decodificador de audio y metodos relacionados para mejorar el procesamiento de transitorios. MX371223B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16156200 2016-02-17
PCT/EP2017/053068 WO2017140600A1 (en) 2016-02-17 2017-02-10 Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing

Publications (2)

Publication Number Publication Date
MX2017014734A true MX2017014734A (es) 2018-06-28
MX371223B MX371223B (es) 2020-01-09

Family

ID=55361427

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017014734A MX371223B (es) 2016-02-17 2017-02-10 Post-procesador, pre-procesador, codificador de audio, decodificador de audio y metodos relacionados para mejorar el procesamiento de transitorios.

Country Status (17)

Country Link
US (4) US10720170B2 (es)
EP (3) EP4462677A3 (es)
JP (2) JP6603414B2 (es)
KR (1) KR102067044B1 (es)
CN (1) CN107925388B (es)
AR (1) AR107662A1 (es)
AU (1) AU2017219696B2 (es)
CA (1) CA2985019C (es)
ES (2) ES2994324T3 (es)
MX (1) MX371223B (es)
MY (1) MY191093A (es)
PL (2) PL3627507T3 (es)
PT (1) PT3417544T (es)
RU (1) RU2685024C1 (es)
TW (1) TWI618053B (es)
WO (1) WO2017140600A1 (es)
ZA (1) ZA201707336B (es)

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Also Published As

Publication number Publication date
ES2994324T3 (en) 2025-01-22
BR112017024480A2 (pt) 2018-07-24
CN107925388B (zh) 2021-11-30
AR107662A1 (es) 2018-05-23
EP3627507B1 (en) 2024-10-16
TWI618053B (zh) 2018-03-11
US20200090670A1 (en) 2020-03-19
EP4462677A3 (en) 2024-12-18
ES2771200T3 (es) 2020-07-06
ZA201707336B (en) 2019-02-27
AU2017219696A1 (en) 2017-11-16
JP7007344B2 (ja) 2022-01-24
MY191093A (en) 2022-05-30
CA2985019C (en) 2022-05-03
PL3627507T3 (pl) 2025-03-10
EP3627507C0 (en) 2024-10-16
PT3417544T (pt) 2020-03-02
US20180190303A1 (en) 2018-07-05
RU2685024C1 (ru) 2019-04-16
US20240347067A1 (en) 2024-10-17
US11094331B2 (en) 2021-08-17
KR20180016417A (ko) 2018-02-14
JP6603414B2 (ja) 2019-11-06
EP3627507A1 (en) 2020-03-25
JP2020024440A (ja) 2020-02-13
PL3417544T3 (pl) 2020-06-29
EP4462677A2 (en) 2024-11-13
KR102067044B1 (ko) 2020-01-17
EP3417544A1 (en) 2018-12-26
JP2019500641A (ja) 2019-01-10
MX371223B (es) 2020-01-09
WO2017140600A1 (en) 2017-08-24
US10720170B2 (en) 2020-07-21
EP3417544B1 (en) 2019-12-04
TW201732784A (zh) 2017-09-16
CA2985019A1 (en) 2017-08-24
AU2017219696B2 (en) 2018-11-08
US20200402520A1 (en) 2020-12-24
CN107925388A (zh) 2018-04-17

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