MX2014004670A - Generacion de extension de banda superior de una señal de audio extendida en ancho de banda. - Google Patents

Generacion de extension de banda superior de una señal de audio extendida en ancho de banda.

Info

Publication number
MX2014004670A
MX2014004670A MX2014004670A MX2014004670A MX2014004670A MX 2014004670 A MX2014004670 A MX 2014004670A MX 2014004670 A MX2014004670 A MX 2014004670A MX 2014004670 A MX2014004670 A MX 2014004670A MX 2014004670 A MX2014004670 A MX 2014004670A
Authority
MX
Mexico
Prior art keywords
audio signal
high band
generation
band extension
extended audio
Prior art date
Application number
MX2014004670A
Other languages
English (en)
Inventor
Erik Norvell
Volodya Grancharov
Tomas Jansson Toftgård
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of MX2014004670A publication Critical patent/MX2014004670A/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
    • 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
    • G10L19/04—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Un decodificador de audio (200) configurado para generar una extensión de banda superior de una señal de audio a partir de una cobertura y una excitación. El decodificador de audio incluye una disposición de control (41, 42, 44) configurado para controlar de manera conjunta la forma de la cobertura y ruido de excitación con un parámetro de control común (ƒ).
MX2014004670A 2011-11-02 2012-09-04 Generacion de extension de banda superior de una señal de audio extendida en ancho de banda. MX2014004670A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161554573P 2011-11-02 2011-11-02
US201261589618P 2012-01-23 2012-01-23
PCT/SE2012/050937 WO2013066238A2 (en) 2011-11-02 2012-09-04 Generation of a high band extension of a bandwidth extended audio signal

Publications (1)

Publication Number Publication Date
MX2014004670A true MX2014004670A (es) 2014-05-28

Family

ID=48192965

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014004670A MX2014004670A (es) 2011-11-02 2012-09-04 Generacion de extension de banda superior de una señal de audio extendida en ancho de banda.

Country Status (9)

Country Link
US (1) US9251800B2 (es)
EP (2) EP2791937B1 (es)
CN (1) CN104221081B (es)
DK (1) DK2791937T3 (es)
ES (1) ES2582475T3 (es)
MX (1) MX2014004670A (es)
PL (1) PL2791937T3 (es)
PT (1) PT2791937T (es)
WO (1) WO2013066238A2 (es)

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US9082398B2 (en) * 2012-02-28 2015-07-14 Huawei Technologies Co., Ltd. System and method for post excitation enhancement for low bit rate speech coding
CN106847303B (zh) * 2012-03-29 2020-10-13 瑞典爱立信有限公司 支持谐波音频信号的带宽扩展的方法、设备和记录介质
CN105976830B (zh) 2013-01-11 2019-09-20 华为技术有限公司 音频信号编码和解码方法、音频信号编码和解码装置
CN103928031B (zh) 2013-01-15 2016-03-30 华为技术有限公司 编码方法、解码方法、编码装置和解码装置
IL294836B1 (en) * 2013-04-05 2024-06-01 Dolby Int Ab Audio encoder and decoder
FR3007563A1 (fr) * 2013-06-25 2014-12-26 France Telecom Extension amelioree de bande de frequence dans un decodeur de signaux audiofrequences
FR3008533A1 (fr) 2013-07-12 2015-01-16 Orange Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences
US9666202B2 (en) 2013-09-10 2017-05-30 Huawei Technologies Co., Ltd. Adaptive bandwidth extension and apparatus for the same
CN104517611B (zh) * 2013-09-26 2016-05-25 华为技术有限公司 一种高频激励信号预测方法及装置
CN104517610B (zh) * 2013-09-26 2018-03-06 华为技术有限公司 频带扩展的方法及装置
US10083708B2 (en) 2013-10-11 2018-09-25 Qualcomm Incorporated Estimation of mixing factors to generate high-band excitation signal
FR3017484A1 (fr) 2014-02-07 2015-08-14 Orange Extension amelioree de bande de frequence dans un decodeur de signaux audiofrequences
US10468035B2 (en) 2014-03-24 2019-11-05 Samsung Electronics Co., Ltd. High-band encoding method and device, and high-band decoding method and device
PL3550563T3 (pl) * 2014-03-31 2024-07-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Enkoder, dekoder, sposób enkodowania, sposób dekodowania oraz powiązane programy
US9697843B2 (en) 2014-04-30 2017-07-04 Qualcomm Incorporated High band excitation signal generation
CN106409304B (zh) 2014-06-12 2020-08-25 华为技术有限公司 一种音频信号的时域包络处理方法及装置、编码器
CN105225671B (zh) * 2014-06-26 2016-10-26 华为技术有限公司 编解码方法、装置及系统
US20190051286A1 (en) * 2017-08-14 2019-02-14 Microsoft Technology Licensing, Llc Normalization of high band signals in network telephony communications
CN110556122B (zh) * 2019-09-18 2024-01-19 腾讯科技（深圳）有限公司 频带扩展方法、装置、电子设备及计算机可读存储介质
RU2747368C1 (ru) * 2020-07-13 2021-05-04 федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия связи имени Маршала Советского Союза С.М. Буденного" Министерства обороны Российской Федерации Способ мониторинга и управления информационной безопасностью подвижной сети связи

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CN1282156C (zh) * 2001-11-23 2006-10-25 皇家飞利浦电子股份有限公司 音频信号带宽扩展
US20030187663A1 (en) * 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
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Also Published As

Publication number Publication date
US9251800B2 (en) 2016-02-02
WO2013066238A2 (en) 2013-05-10
EP2791937B1 (en) 2016-06-08
PT2791937T (pt) 2016-09-19
ES2582475T3 (es) 2016-09-13
EP2791937A4 (en) 2015-08-05
DK2791937T3 (en) 2016-09-12
WO2013066238A3 (en) 2013-08-01
PL2791937T3 (pl) 2016-11-30
US20140257827A1 (en) 2014-09-11
CN104221081B (zh) 2017-03-15
EP2791937A2 (en) 2014-10-22
CN104221081A (zh) 2014-12-17
EP3089164A1 (en) 2016-11-02

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