AR094279A1 - Agregado de ruido de confort para modelar el ruido de fondo a bajas tasas de bits - Google Patents

Agregado de ruido de confort para modelar el ruido de fondo a bajas tasas de bits

Info

Publication number
AR094279A1
AR094279A1 ARP130105027A ARP130105027A AR094279A1 AR 094279 A1 AR094279 A1 AR 094279A1 AR P130105027 A ARP130105027 A AR P130105027A AR P130105027 A ARP130105027 A AR P130105027A AR 094279 A1 AR094279 A1 AR 094279A1
Authority
AR
Argentina
Prior art keywords
noise
signal
model
audio signal
bit rates
Prior art date
Application number
ARP130105027A
Other languages
English (en)
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 AR094279A1 publication Critical patent/AR094279A1/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 presente 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).
ARP130105027A 2012-12-21 2013-12-20 Agregado de ruido de confort para modelar el ruido de fondo a bajas tasas de bits AR094279A1 (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 (1)

Publication Number Publication Date
AR094279A1 true AR094279A1 (es) 2015-07-22

Family

ID=49883094

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP130105027A AR094279A1 (es) 2012-12-21 2013-12-20 Agregado de ruido de confort para modelar el ruido de fondo a bajas tasas de bits

Country Status (20)

Country Link
US (3) US10147432B2 (es)
EP (1) EP2936486B1 (es)
JP (3) JP6335190B2 (es)
KR (2) KR101692659B1 (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)
HK (1) HK1217244A1 (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
US20200013417A1 (en) 2020-01-09
WO2014096280A1 (en) 2014-06-26
JP6335190B2 (ja) 2018-05-30
CA2948015A1 (en) 2014-06-26
SG11201504899XA (en) 2015-07-30
KR102167541B1 (ko) 2020-10-19
TWI553629B (zh) 2016-10-11
KR20150107751A (ko) 2015-09-23
EP2936486A1 (en) 2015-10-28
CA2895391C (en) 2019-08-06
EP2936486B1 (en) 2018-07-18
JP2016500453A (ja) 2016-01-12
ZA201505191B (en) 2016-07-27
CN105210148B (zh) 2020-06-30
JP6849619B2 (ja) 2021-03-24
HK1217244A1 (zh) 2016-12-30
RU2015129782A (ru) 2017-01-27
CA2895391A1 (en) 2014-06-26
JP2018084834A (ja) 2018-05-31
JP2021092816A (ja) 2021-06-17
RU2633107C2 (ru) 2017-10-11
AU2013366552B2 (en) 2017-03-02
TW201432671A (zh) 2014-08-16
MY178710A (en) 2020-10-20
US10339941B2 (en) 2019-07-02
ES2688021T3 (es) 2018-10-30
CN105210148A (zh) 2015-12-30
PL2936486T3 (pl) 2018-12-31
AU2013366552A1 (en) 2015-07-16
US20150364144A1 (en) 2015-12-17
US10147432B2 (en) 2018-12-04
BR112015014217B1 (pt) 2021-11-03
KR101692659B1 (ko) 2017-01-03
CA2948015C (en) 2018-03-20
PT2936486T (pt) 2018-10-19
BR112015014217A2 (pt) 2018-06-26
US10789963B2 (en) 2020-09-29
JP7297803B2 (ja) 2023-06-26
MX366279B (es) 2019-07-03
US20180342253A1 (en) 2018-11-29
MX2015007854A (es) 2016-02-05
CN111145767A (zh) 2020-05-12
CN111145767B (zh) 2023-07-25
KR20170001751A (ko) 2017-01-04

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