MX355452B - Extension de ancho de banda de audio mediante insercion de ruido pre-formado temporal en el dominio de frecuencia. - Google Patents

Extension de ancho de banda de audio mediante insercion de ruido pre-formado temporal en el dominio de frecuencia.

Info

Publication number
MX355452B
MX355452B MX2016005167A MX2016005167A MX355452B MX 355452 B MX355452 B MX 355452B MX 2016005167 A MX2016005167 A MX 2016005167A MX 2016005167 A MX2016005167 A MX 2016005167A MX 355452 B MX355452 B MX 355452B
Authority
MX
Mexico
Prior art keywords
frequency domain
audio signal
signal
bandwidth extension
bandwidth
Prior art date
Application number
MX2016005167A
Other languages
English (en)
Other versions
MX2016005167A (es
Inventor
Sascha Disch
Markus Schnell
Markus Multrus
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 MX2016005167A publication Critical patent/MX2016005167A/es
Publication of MX355452B publication Critical patent/MX355452B/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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered 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
    • 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
    • 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)

Abstract

La invención provee un dispositivo decodificador de audio para decodificar un flujo de bits, el dispositivo decodificador de audio comprende: un receptor de flujo de bits configurado para recibir el flujo de bits y para derivar una señal de audio codificada del flujo de bits; un módulo decodificador central configurado para derivar una señal de audio decodificada en un dominio de tiempo de la señal de audio codificada; un generador de envolvente temporal configurado para determinar una envolvente temporal de la señal de audio decodificada; un módulo de extensión de ancho de banda configurado para producir una señal de extensión de ancho de banda de dominio de frecuencia, en donde el módulo de extensión de ancho de banda comprende un generador de ruido, configurado para producir una señal de ruido en el dominio del tiempo, en donde el módulo de extensión de ancho de banda comprende un módulo de pre-formación, configurado para formación temporal de la señal de ruido, dependiendo de la envolvente temporal de la señal de audio decodificada, con el fin de producir una señal de ruido formada y en donde el módulo de extensión de ancho de banda comprende un convertidor de tiempo a frecuencia, configurado para transformar la señal de ruido formada a una señal de ruido de un dominio de frecuencia; en donde la señal de extensión de ancho de banda de dominio de frecuencia depende de la señal de ruido de dominio de frecuencia; un convertidor de tiempo a frecuencia configurado para transformar la señal de audio decodificada a un señal de audio decodificada de dominio de frecuencia; un combinador configurado para combinar el señal de audio decodificada de dominio de frecuencia y la señal de extensión de ancho de banda de dominio de frecuencia, con el fin de producir una señal de audio de dominio de frecuencia de ancho de banda extendido y un convertidor de frecuencia a tiempo configurado para transformar la señal de audio de dominio de frecuencia de ancho de banda extendido a una señal de audio de dominio de tiempo de ancho de banda extendido.
MX2016005167A 2013-10-31 2014-10-30 Extension de ancho de banda de audio mediante insercion de ruido pre-formado temporal en el dominio de frecuencia. MX355452B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13191127 2013-10-31
PCT/EP2014/073375 WO2015063227A1 (en) 2013-10-31 2014-10-30 Audio bandwidth extension by insertion of temporal pre-shaped noise in frequency domain

Publications (2)

Publication Number Publication Date
MX2016005167A MX2016005167A (es) 2016-07-05
MX355452B true MX355452B (es) 2018-04-18

Family

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Family Applications (1)

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MX2016005167A MX355452B (es) 2013-10-31 2014-10-30 Extension de ancho de banda de audio mediante insercion de ruido pre-formado temporal en el dominio de frecuencia.

Country Status (12)

Country Link
US (1) US9805731B2 (es)
EP (1) EP3063761B1 (es)
JP (1) JP6396459B2 (es)
KR (1) KR101852749B1 (es)
CN (1) CN105706166B (es)
BR (1) BR112016009563B1 (es)
CA (1) CA2927990C (es)
ES (1) ES2657337T3 (es)
MX (1) MX355452B (es)
RU (1) RU2666468C2 (es)
TR (1) TR201802303T4 (es)
WO (1) WO2015063227A1 (es)

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EP3483882A1 (en) * 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
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
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CN119210510B (zh) * 2024-11-28 2025-02-21 深圳捷扬微电子有限公司 一种提高uwb带宽的方法

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Also Published As

Publication number Publication date
MX2016005167A (es) 2016-07-05
US9805731B2 (en) 2017-10-31
WO2015063227A1 (en) 2015-05-07
RU2666468C2 (ru) 2018-09-07
ES2657337T3 (es) 2018-03-02
JP2016541012A (ja) 2016-12-28
CN105706166B (zh) 2020-07-14
EP3063761A1 (en) 2016-09-07
KR101852749B1 (ko) 2018-06-07
CA2927990C (en) 2018-08-14
CN105706166A (zh) 2016-06-22
EP3063761B1 (en) 2017-11-22
BR112016009563B1 (pt) 2021-12-21
TR201802303T4 (tr) 2018-03-21
US20160240200A1 (en) 2016-08-18
KR20160075768A (ko) 2016-06-29
BR112016009563A2 (pt) 2017-08-01
CA2927990A1 (en) 2015-05-07
RU2016121163A (ru) 2017-12-05
JP6396459B2 (ja) 2018-09-26

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