MA37890A1 - Génération de bruit de confort - Google Patents

Génération de bruit de confort

Info

Publication number
MA37890A1
MA37890A1 MA37890A MA37890A MA37890A1 MA 37890 A1 MA37890 A1 MA 37890A1 MA 37890 A MA37890 A MA 37890A MA 37890 A MA37890 A MA 37890A MA 37890 A1 MA37890 A1 MA 37890A1
Authority
MA
Morocco
Prior art keywords
parameters
comfort noise
subset
sid
noise generation
Prior art date
Application number
MA37890A
Other languages
English (en)
Other versions
MA37890B1 (fr
Inventor
Toftgård Tomas Jansson
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 MA37890A1 publication Critical patent/MA37890A1/fr
Publication of MA37890B1 publication Critical patent/MA37890B1/fr

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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • 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
    • G10L25/78—Detection of presence or absence of voice signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Noise Elimination (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • User Interface Of Digital Computer (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un dispositif de commande de bruit de confort (50) servant à générer des paramètres de commande cn (bruit de confort). Un tampon (200) d'une taille prédéterminée est configuré pour stocker des paramètres cn pour des trames sid (descripteur d'insertion de silence) et des trames de maintien actif. Un sélecteur de sous-ensemble (50a) est configuré pour déterminer un sous-ensemble de paramètres cn pertinent pour des trames sid sur la base de l'âge des paramètres cn stockés et d'énergies résiduelles. Un extracteur de paramètres de commande de bruit de confort (50b) est configuré pour utiliser le sous-ensemble de paramètres cn déterminé afin de déterminer les paramètres de commande cn pour une première trame sid suivant une trame de signal actif.
MA37890A 2012-09-11 2013-05-07 Génération de bruit de confort MA37890B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261699448P 2012-09-11 2012-09-11
PCT/EP2013/059514 WO2014040763A1 (fr) 2012-09-11 2013-05-07 Génération de bruit de confort

Publications (2)

Publication Number Publication Date
MA37890A1 true MA37890A1 (fr) 2016-12-30
MA37890B1 MA37890B1 (fr) 2017-11-30

Family

ID=48289221

Family Applications (1)

Application Number Title Priority Date Filing Date
MA37890A MA37890B1 (fr) 2012-09-11 2013-05-07 Génération de bruit de confort

Country Status (23)

Country Link
US (5) US9443526B2 (fr)
EP (2) EP2927905B1 (fr)
JP (1) JP5793636B2 (fr)
KR (1) KR101648290B1 (fr)
CN (1) CN104584120B (fr)
AP (1) AP2015008251A0 (fr)
AU (1) AU2013314636B2 (fr)
BR (1) BR112015002826B1 (fr)
CA (1) CA2884471C (fr)
CL (1) CL2015000540A1 (fr)
DK (1) DK2823479T3 (fr)
ES (2) ES2642574T3 (fr)
HU (1) HUE027963T2 (fr)
IN (1) IN2014DN08789A (fr)
MA (1) MA37890B1 (fr)
MX (1) MX340634B (fr)
MY (1) MY185490A (fr)
PH (1) PH12014502232A1 (fr)
PL (2) PL2823479T3 (fr)
PT (1) PT2823479E (fr)
RU (2) RU2609080C2 (fr)
SG (1) SG11201500595TA (fr)
WO (1) WO2014040763A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MA37890B1 (fr) * 2012-09-11 2017-11-30 Ericsson Telefon Ab L M Génération de bruit de confort
EP2959480B1 (fr) * 2013-02-22 2016-06-15 Telefonaktiebolaget LM Ericsson (publ) Procédés et appareils pour le maintien dtx dans le codage audio
CN105225668B (zh) 2013-05-30 2017-05-10 华为技术有限公司 信号编码方法及设备
US9775110B2 (en) * 2014-05-30 2017-09-26 Apple Inc. Power save for volte during silence periods
CA2956531C (fr) 2014-07-29 2020-03-24 Telefonaktiebolaget Lm Ericsson (Publ) Estimation d'un bruit de fond dans des signaux audio
GB2532041B (en) * 2014-11-06 2019-05-29 Imagination Tech Ltd Comfort noise generation
EP4672235A3 (fr) * 2018-06-28 2026-02-18 Telefonaktiebolaget LM Ericsson (publ) Détermination adaptative de paramètre de bruit de confort
US10805191B2 (en) 2018-12-14 2020-10-13 At&T Intellectual Property I, L.P. Systems and methods for analyzing performance silence packets
CN115867964A (zh) 2020-06-11 2023-03-28 杜比实验室特许公司 用于对多声道输入信号内的空间背景噪声进行编码和/或解码的方法和设备
CN115917645A (zh) * 2020-07-07 2023-04-04 瑞典爱立信有限公司 多模式空间音频编码的舒适噪声生成
JP7614328B2 (ja) * 2020-07-30 2025-01-15 フラウンホーファー－ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン オーディオ信号を符号化する、又は符号化オーディオシーンを復号化する装置、方法及びコンピュータープログラム
WO2024056701A1 (fr) * 2022-09-13 2024-03-21 Telefonaktiebolaget Lm Ericsson (Publ) Synthèse adaptative de paramètres stéréo

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5630016A (en) * 1992-05-28 1997-05-13 Hughes Electronics Comfort noise generation for digital communication systems
US5794199A (en) * 1996-01-29 1998-08-11 Texas Instruments Incorporated Method and system for improved discontinuous speech transmission
US6269331B1 (en) * 1996-11-14 2001-07-31 Nokia Mobile Phones Limited Transmission of comfort noise parameters during discontinuous transmission
US5960389A (en) 1996-11-15 1999-09-28 Nokia Mobile Phones Limited Methods for generating comfort noise during discontinuous transmission
AU1352999A (en) 1998-12-07 2000-06-26 Mitsubishi Denki Kabushiki Kaisha Sound decoding device and sound decoding method
GB2356538A (en) * 1999-11-22 2001-05-23 Mitel Corp Comfort noise generation for open discontinuous transmission systems
US7610197B2 (en) * 2005-08-31 2009-10-27 Motorola, Inc. Method and apparatus for comfort noise generation in speech communication systems
US20100106490A1 (en) * 2007-03-29 2010-04-29 Jonas Svedberg Method and Speech Encoder with Length Adjustment of DTX Hangover Period
CN101335000B (zh) 2008-03-26 2010-04-21 华为技术有限公司 编码的方法及装置
TWI563498B (en) * 2011-02-14 2016-12-21 Fraunhofer Ges Forschung Apparatus and method for encoding an audio signal using an aligned look-ahead portion, and related computer program
CA2821577C (fr) * 2011-02-15 2020-03-24 Voiceage Evs Llc Dispositif et procede de quantification des gains des contributions adaptative et fixe de l'excitation dans un codec celp
MA37890B1 (fr) * 2012-09-11 2017-11-30 Ericsson Telefon Ab L M Génération de bruit de confort

Also Published As

Publication number Publication date
WO2014040763A1 (fr) 2014-03-20
US10381014B2 (en) 2019-08-13
KR101648290B1 (ko) 2016-08-12
JP2015525896A (ja) 2015-09-07
AP2015008251A0 (en) 2015-02-28
RU2658544C1 (ru) 2018-06-22
BR112015002826A2 (pt) 2018-05-22
US20190318752A1 (en) 2019-10-17
EP2927905B1 (fr) 2017-07-12
EP2823479B1 (fr) 2015-07-08
CA2884471C (fr) 2016-12-20
JP5793636B2 (ja) 2015-10-14
MX340634B (es) 2016-07-19
US9779741B2 (en) 2017-10-03
MX2015003060A (es) 2015-07-14
DK2823479T3 (en) 2015-10-12
US9443526B2 (en) 2016-09-13
PH12014502232B1 (en) 2014-12-15
ES2642574T3 (es) 2017-11-16
CN104584120B (zh) 2016-08-31
ES2547457T3 (es) 2015-10-06
PL2927905T3 (pl) 2017-12-29
US20150235648A1 (en) 2015-08-20
US20210166704A1 (en) 2021-06-03
BR112015002826B1 (pt) 2021-05-04
RU2014150326A (ru) 2016-07-10
AU2013314636A1 (en) 2015-03-19
KR20150054716A (ko) 2015-05-20
EP2823479A1 (fr) 2015-01-14
US10891964B2 (en) 2021-01-12
CA2884471A1 (fr) 2014-03-20
US11621004B2 (en) 2023-04-04
EP2927905A1 (fr) 2015-10-07
PH12014502232A1 (en) 2014-12-15
AU2013314636B2 (en) 2016-02-25
SG11201500595TA (en) 2015-04-29
IN2014DN08789A (fr) 2015-05-22
HK1206861A1 (zh) 2016-01-15
US20160293170A1 (en) 2016-10-06
US20170352354A1 (en) 2017-12-07
MY185490A (en) 2021-05-19
CN104584120A (zh) 2015-04-29
MA37890B1 (fr) 2017-11-30
CL2015000540A1 (es) 2015-07-31
HUE027963T2 (en) 2016-11-28
PT2823479E (pt) 2015-10-08
RU2609080C2 (ru) 2017-01-30
PL2823479T3 (pl) 2015-10-30

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