MX366279B - Adicion de ruido de confort para modelar el ruido de fondo a bajas tasas de bits. - Google Patents

Adicion de ruido de confort para modelar el ruido de fondo a bajas tasas de bits.

Info

Publication number
MX366279B
MX366279B MX2015007854A MX2015007854A MX366279B MX 366279 B MX366279 B MX 366279B MX 2015007854 A MX2015007854 A MX 2015007854A MX 2015007854 A MX2015007854 A MX 2015007854A MX 366279 B MX366279 B MX 366279B
Authority
MX
Mexico
Prior art keywords
noise
signal
rates
comfort
low bit
Prior art date
Application number
MX2015007854A
Other languages
English (en)
Other versions
MX2015007854A (es
Inventor
Guillaume Fuchs
Jérémie Lecomte
Emmanuel Ravelli
Martin Dietz
Anthony Lombard
Stefan Döhla
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 MX2015007854A publication Critical patent/MX2015007854A/es
Publication of MX366279B publication Critical patent/MX366279B/es

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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
    • G10L19/012—Comfort noise or silence coding

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Noise Elimination (AREA)

Abstract

La invención presenta un decodificador que está configurado para procesar un flujo de bits de audio codificado (BS), donde el decodificador (1) comprende: un decodificador de flujos de bits (2) configurado para derivar una señal de audio decodificada (DS) del flujo de bits (BS), donde la señal de audio decodificada (DS) comprende por lo menos una trama decodificada; un dispositivo de estimación de ruido (3) configurado para producir una señal de estimación de ruido (NE) que contiene una estimación del nivel y/o la forma espectral de un ruido (N) en la señal de audio decodificada (DS); un dispositivo generador de ruido de confort (4) configurado para derivar una señal de ruido de confort (CN) de la señal de estimación de ruido (NE) y un combinador (5) configurado para combinar la trama decodificada de la señal de audio decodificada (DS) y la señal de ruido de confort (CN) para obtener una señal de audio de salida (OS).
MX2015007854A 2012-12-21 2013-12-19 Adicion de ruido de confort para modelar el ruido de fondo a bajas tasas de bits. MX366279B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261740883P 2012-12-21 2012-12-21
PCT/EP2013/077527 WO2014096280A1 (en) 2012-12-21 2013-12-19 Comfort noise addition for modeling background noise at low bit-rates

Publications (2)

Publication Number Publication Date
MX2015007854A MX2015007854A (es) 2016-02-05
MX366279B true MX366279B (es) 2019-07-03

Family

ID=49883094

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015007854A MX366279B (es) 2012-12-21 2013-12-19 Adicion de ruido de confort para modelar el ruido de fondo a bajas tasas de bits.

Country Status (19)

Country Link
US (3) US10147432B2 (es)
EP (1) EP2936486B1 (es)
JP (3) JP6335190B2 (es)
KR (2) KR102167541B1 (es)
CN (2) CN111145767B (es)
AR (1) AR094279A1 (es)
AU (1) AU2013366552B2 (es)
BR (1) BR112015014217B1 (es)
CA (2) CA2895391C (es)
ES (1) ES2688021T3 (es)
MX (1) MX366279B (es)
MY (1) MY178710A (es)
PL (1) PL2936486T3 (es)
PT (1) PT2936486T (es)
RU (1) RU2633107C2 (es)
SG (1) SG11201504899XA (es)
TW (1) TWI553629B (es)
WO (1) WO2014096280A1 (es)
ZA (1) ZA201505191B (es)

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Also Published As

Publication number Publication date
CA2895391C (en) 2019-08-06
US20150364144A1 (en) 2015-12-17
BR112015014217B1 (pt) 2021-11-03
SG11201504899XA (en) 2015-07-30
RU2015129782A (ru) 2017-01-27
US20180342253A1 (en) 2018-11-29
CN111145767A (zh) 2020-05-12
MX2015007854A (es) 2016-02-05
ES2688021T3 (es) 2018-10-30
BR112015014217A2 (pt) 2018-06-26
JP6335190B2 (ja) 2018-05-30
US20200013417A1 (en) 2020-01-09
JP2021092816A (ja) 2021-06-17
CA2948015A1 (en) 2014-06-26
MY178710A (en) 2020-10-20
WO2014096280A1 (en) 2014-06-26
AU2013366552B2 (en) 2017-03-02
CN111145767B (zh) 2023-07-25
KR102167541B1 (ko) 2020-10-19
KR20150107751A (ko) 2015-09-23
PL2936486T3 (pl) 2018-12-31
PT2936486T (pt) 2018-10-19
ZA201505191B (en) 2016-07-27
US10339941B2 (en) 2019-07-02
AR094279A1 (es) 2015-07-22
CN105210148A (zh) 2015-12-30
JP7297803B2 (ja) 2023-06-26
EP2936486B1 (en) 2018-07-18
JP2018084834A (ja) 2018-05-31
AU2013366552A1 (en) 2015-07-16
US10789963B2 (en) 2020-09-29
TW201432671A (zh) 2014-08-16
CA2948015C (en) 2018-03-20
HK1217244A1 (en) 2016-12-30
TWI553629B (zh) 2016-10-11
JP2016500453A (ja) 2016-01-12
CN105210148B (zh) 2020-06-30
EP2936486A1 (en) 2015-10-28
RU2633107C2 (ru) 2017-10-11
JP6849619B2 (ja) 2021-03-24
CA2895391A1 (en) 2014-06-26
KR101692659B1 (ko) 2017-01-03
KR20170001751A (ko) 2017-01-04
US10147432B2 (en) 2018-12-04

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