MX347592B - Aparato y método para la reproducción de una señal de audio, aparato y método para la generación de una señal de audio codificada, programa de computadora y señal de audio codificada. - Google Patents

Aparato y método para la reproducción de una señal de audio, aparato y método para la generación de una señal de audio codificada, programa de computadora y señal de audio codificada.

Info

Publication number
MX347592B
MX347592B MX2015002509A MX2015002509A MX347592B MX 347592 B MX347592 B MX 347592B MX 2015002509 A MX2015002509 A MX 2015002509A MX 2015002509 A MX2015002509 A MX 2015002509A MX 347592 B MX347592 B MX 347592B
Authority
MX
Mexico
Prior art keywords
audio signal
frequency band
coded audio
signal
reproducing
Prior art date
Application number
MX2015002509A
Other languages
English (en)
Other versions
MX2015002509A (es
Inventor
Sascha Disch
Markus Multrus
Christian Helmrich
Konstantin Schmidt
Benjamin Schubert
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 MX2015002509A publication Critical patent/MX2015002509A/es
Publication of MX347592B publication Critical patent/MX347592B/es

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
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • 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

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)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Un aparato para la reproducción de una señal de audio sobre la base de una primera información que representa una versión codificada de una primera porción de la señal de audio en una primera banda de frecuencia, y una segunda información que representa información lateral sobre una segunda porción de la señal de audio en una segunda banda de frecuencia, donde la segunda banda de frecuencia comprende frecuencias más altas que la primera banda de frecuencia; y que comprende un primer reproductor configurado para reproducir la primera porción de la señal de audio sobre la base de la primera información. Un proveedor está configurado para proporcionar una señal de parche en la segunda banda de frecuencia, donde la señal de parche está al menos parcialmente no correlacionada con respecto a la primera porción de la señal de audio, o es al menos parcialmente una versión descorrelacionada de la primera porción de la señal de audio, que se ha desplazado hacia la segunda banda de frecuencia. Un segundo reproductor está configurado para reproducir la segunda porción de la señal de audio en la segunda banda de frecuencia sobre la base de la segunda información y la señal de parche. Una combinadora está configurada para combinar la primera porción reproducida de la señal de audio y la señal de parche antes de que la segunda porción de la señal de audio es reproducida por el segundo reproductor, o para combinar la primera porción reproducida de la señal de audio y la segunda porción reproducida de la señal de audio.
MX2015002509A 2012-08-27 2013-08-27 Aparato y método para la reproducción de una señal de audio, aparato y método para la generación de una señal de audio codificada, programa de computadora y señal de audio codificada. MX347592B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261693575P 2012-08-27 2012-08-27
EP12187265.9A EP2704142B1 (en) 2012-08-27 2012-10-04 Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal
PCT/EP2013/067730 WO2014033131A1 (en) 2012-08-27 2013-08-27 Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal

Publications (2)

Publication Number Publication Date
MX2015002509A MX2015002509A (es) 2015-06-10
MX347592B true MX347592B (es) 2017-05-03

Family

ID=47010331

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015002509A MX347592B (es) 2012-08-27 2013-08-27 Aparato y método para la reproducción de una señal de audio, aparato y método para la generación de una señal de audio codificada, programa de computadora y señal de audio codificada.

Country Status (15)

Country Link
US (1) US9305564B2 (es)
EP (2) EP2704142B1 (es)
JP (1) JP6229957B2 (es)
KR (1) KR101711312B1 (es)
CN (1) CN104603872B (es)
AR (1) AR092228A1 (es)
BR (1) BR112015004556B1 (es)
CA (1) CA2882775C (es)
ES (2) ES2549953T3 (es)
MX (1) MX347592B (es)
PL (1) PL2888737T3 (es)
PT (1) PT2888737T (es)
RU (1) RU2607262C2 (es)
TW (1) TWI523004B (es)
WO (1) WO2014033131A1 (es)

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Also Published As

Publication number Publication date
PT2888737T (pt) 2016-10-04
RU2607262C2 (ru) 2017-01-10
BR112015004556B1 (pt) 2021-10-13
ES2549953T3 (es) 2015-11-03
JP2015526769A (ja) 2015-09-10
EP2704142B1 (en) 2015-09-02
MX2015002509A (es) 2015-06-10
TW201419269A (zh) 2014-05-16
WO2014033131A1 (en) 2014-03-06
EP2704142A1 (en) 2014-03-05
KR20150047607A (ko) 2015-05-04
EP2888737B1 (en) 2016-06-22
KR101711312B1 (ko) 2017-02-28
CN104603872B (zh) 2017-08-11
US9305564B2 (en) 2016-04-05
CN104603872A (zh) 2015-05-06
JP6229957B2 (ja) 2017-11-15
EP2888737A1 (en) 2015-07-01
CA2882775C (en) 2017-08-29
PL2888737T3 (pl) 2016-12-30
AR092228A1 (es) 2015-04-08
CA2882775A1 (en) 2014-03-06
US20150170663A1 (en) 2015-06-18
ES2593072T3 (es) 2016-12-05
TWI523004B (zh) 2016-02-21
BR112015004556A2 (pt) 2017-07-04
RU2015110702A (ru) 2016-10-20

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