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MX2010008288A - Metodo y aparato para estimar energia de banda alta en un sistema de extension de ancho de banda. - Google Patents

Metodo y aparato para estimar energia de banda alta en un sistema de extension de ancho de banda.

Info

Publication number
MX2010008288A
MX2010008288A MX2010008288A MX2010008288A MX2010008288A MX 2010008288 A MX2010008288 A MX 2010008288A MX 2010008288 A MX2010008288 A MX 2010008288A MX 2010008288 A MX2010008288 A MX 2010008288A MX 2010008288 A MX2010008288 A MX 2010008288A
Authority
MX
Mexico
Prior art keywords
band
band energy
digital audio
audio signal
energy level
Prior art date
Application number
MX2010008288A
Other languages
English (en)
Inventor
Mark A Jasiuk
Tenkasi V Ramabadran
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of MX2010008288A publication Critical patent/MX2010008288A/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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Telephone Function (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Un método (100) incluye recibir (101) una señal de audio digital de entrada que comprende una señal de banda angosta; la señal de audio digital de entrada es procesada (102) para generar una señal de audio digital procesada; se determina (103) un estimado del nivel de energía de banda alta correspondiente a una señal de audio digital de entrada de ancho de banda extendido; se realiza la modificación del nivel de energía de banda alta estimado con base en una precisión de la estimación y/o características de la señal de banda angosta (104); una señal de audio digital de banda alta es generada con base en el estimado modificado del nivel de energía de banda alta y un espectro de banda alta estimado correspondiente al estimado modificado del nivel de energía de banda alta (105).
MX2010008288A 2008-02-07 2009-02-05 Metodo y aparato para estimar energia de banda alta en un sistema de extension de ancho de banda. MX2010008288A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/027,571 US20090201983A1 (en) 2008-02-07 2008-02-07 Method and apparatus for estimating high-band energy in a bandwidth extension system
PCT/US2009/033159 WO2009100182A1 (en) 2008-02-07 2009-02-05 Method and apparatus for estimating high-band energy in a bandwidth extension system

Publications (1)

Publication Number Publication Date
MX2010008288A true MX2010008288A (es) 2010-08-31

Family

ID=40626568

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010008288A MX2010008288A (es) 2008-02-07 2009-02-05 Metodo y aparato para estimar energia de banda alta en un sistema de extension de ancho de banda.

Country Status (9)

Country Link
US (3) US20090201983A1 (es)
EP (1) EP2238593B1 (es)
KR (1) KR101199431B1 (es)
CN (1) CN101939783A (es)
BR (1) BRPI0907361A2 (es)
ES (1) ES2467966T3 (es)
MX (1) MX2010008288A (es)
RU (1) RU2471253C2 (es)
WO (1) WO2009100182A1 (es)

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Also Published As

Publication number Publication date
RU2471253C2 (ru) 2012-12-27
EP2238593B1 (en) 2014-05-14
EP2238593A1 (en) 2010-10-13
US8527283B2 (en) 2013-09-03
RU2010137104A (ru) 2012-03-20
CN101939783A (zh) 2011-01-05
KR101199431B1 (ko) 2012-11-09
WO2009100182A1 (en) 2009-08-13
KR20100123712A (ko) 2010-11-24
US20110112845A1 (en) 2011-05-12
US20110112844A1 (en) 2011-05-12
US20090201983A1 (en) 2009-08-13
ES2467966T3 (es) 2014-06-13
BRPI0907361A2 (pt) 2015-07-14

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