ES2177729T3 - Modificacion del retardo de pitch durante borrados de trampa. - Google Patents

Modificacion del retardo de pitch durante borrados de trampa.

Info

Publication number
ES2177729T3
ES2177729T3 ES96303853T ES96303853T ES2177729T3 ES 2177729 T3 ES2177729 T3 ES 2177729T3 ES 96303853 T ES96303853 T ES 96303853T ES 96303853 T ES96303853 T ES 96303853T ES 2177729 T3 ES2177729 T3 ES 2177729T3
Authority
ES
Spain
Prior art keywords
encrypted
code
voice
framework
amplifier
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES96303853T
Other languages
English (en)
Inventor
Yair Shoham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
AT&T IPM Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23928093&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2177729(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by AT&T Corp, AT&T IPM Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of ES2177729T3 publication Critical patent/ES2177729T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/005Correction of errors induced by the transmission channel, if related to the coding algorithm

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computational Linguistics (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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

UN DECODIFICADOR DE VOZ BASADO EN UN CODIGO DE CIFRADO Y DESCIFRADO QUE FALLA PARA RECIBIR CON EXACTITUD AL MENOS UNA PARTE DE UN MARCO ACTUAL DE INFORMACION DE VOZ COMPRIMIDA UTILIZA UNA GANANCIA DEL CODIGO DE CIFRADO Y DESCIFRADO QUE ES UNA VERSION ATENUADA DE LA GANANCIA DE UN MARCO PREVIO DE VOZ. EL DECODIFICADOR DE VOZ INCLUYE UNA MEMORIA DE CODIGO DE CIFRADO Y DESCIFRADO Y UN AMPLIFICADOR DE SEÑAL. LA MEMORIA Y EL AMPLIFICADOR SON USADOS PARA GENERAR UNA SEÑAL DE VOZ DECODIFICADA SOBRE LA BASE DE LA INFORMACION DE VOZ COMPRIMIDA. LA INFORMACION DE VOZ COMPRIMIDA INCLUYE UN FACTOR DE ESCALA PARA SU USO POR EL AMPLIFICADOR EN LA ESCALACION DE UN VECTOR DE CODIGO DE CIFRADO Y DESCIFRADO. CUANDO SE PRODUCE EL BORRADO DE UN MARCO, SE ATENUA UN FACTOR DE ESCALA CORRESPONDIENTE A UN MARCO ANTERIOR DE VOZ Y EL FACTOR DE ESCALA ATENUADO SE UTILIZA PARA AMPLIFICAR EL VECTOR DEL CODIGO DE CIFRADO Y DESCIFRADO QUE CORRESPONDE AL MARCO ACTUAL BORRADO DE VOZ.
ES96303853T 1995-06-07 1996-05-29 Modificacion del retardo de pitch durante borrados de trampa. Expired - Lifetime ES2177729T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48542095A 1995-06-07 1995-06-07

Publications (1)

Publication Number Publication Date
ES2177729T3 true ES2177729T3 (es) 2002-12-16

Family

ID=23928093

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96303853T Expired - Lifetime ES2177729T3 (es) 1995-06-07 1996-05-29 Modificacion del retardo de pitch durante borrados de trampa.

Country Status (8)

Country Link
EP (1) EP0747884B1 (es)
JP (1) JPH09120297A (es)
KR (1) KR970004469A (es)
AU (1) AU5463796A (es)
CA (1) CA2177413A1 (es)
DE (1) DE69622646T2 (es)
ES (1) ES2177729T3 (es)
MX (1) MX9602144A (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI113571B (fi) * 1998-03-09 2004-05-14 Nokia Corp Puheenkoodaus
US6636829B1 (en) * 1999-09-22 2003-10-21 Mindspeed Technologies, Inc. Speech communication system and method for handling lost frames
WO2001037522A1 (en) * 1999-11-19 2001-05-25 Siemens Information And Communication Mobile Llc System and method for wireless communication incorporating error concealment
FR2813722B1 (fr) 2000-09-05 2003-01-24 France Telecom Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif
JP2003044098A (ja) * 2001-07-26 2003-02-14 Nec Corp 音声帯域拡張装置及び音声帯域拡張方法
JP4419748B2 (ja) 2004-08-12 2010-02-24 沖電気工業株式会社 消失補償装置、消失補償方法、および消失補償プログラム
RU2431892C2 (ru) * 2006-11-10 2011-10-20 Панасоник Корпорэйшн Устройство декодирования параметров, устройство кодирования параметров и способ декодирования параметров
AU2007318506B2 (en) * 2006-11-10 2012-03-08 Iii Holdings 12, Llc Parameter decoding device, parameter encoding device, and parameter decoding method
EP2233288A1 (en) 2009-03-23 2010-09-29 Founder Fine Chemical Industry Co., Ltd. Radiation sensitive composition and method for preparing radiation sensitive composition
CN103988255B (zh) * 2011-10-20 2016-03-02 Lg电子株式会社 管理抖动缓存器的方法和使用其的抖动缓存器
US9449607B2 (en) * 2012-01-06 2016-09-20 Qualcomm Incorporated Systems and methods for detecting overflow
EP2980797A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, method and computer program using a zero-input-response to obtain a smooth transition
JP2018526669A (ja) * 2015-07-06 2018-09-13 ノキア テクノロジーズ オサケユイチア オーディオ信号デコーダのためのビット・エラー検出器
MX384925B (es) * 2016-03-07 2025-03-11 Fraunhofer Ges Forschung Unidad de ocultamiento de error, decodificador de audio y método relacionado y programa de computadora que desaparece una trama de audio ocultada de acuerdo con factores de amortiguamiento diferentes para bandas de frecuencia diferentes.
MX386551B (es) 2016-03-07 2025-03-19 Fraunhofer Ges Forschung Unidad de ocultamiento de error, decodificador de audio, y método relacionado y programa de computadora que usa características de una representación decodificada de una trama de audio decodificada apropiadamente.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3102015B2 (ja) * 1990-05-28 2000-10-23 日本電気株式会社 音声復号化方法
US5383202A (en) * 1992-11-25 1995-01-17 Motorola, Inc. Simplified method of attenuation of logarithmically coded digital signals
US5450449A (en) * 1994-03-14 1995-09-12 At&T Ipm Corp. Linear prediction coefficient generation during frame erasure or packet loss

Also Published As

Publication number Publication date
JPH09120297A (ja) 1997-05-06
DE69622646T2 (de) 2003-03-13
EP0747884A2 (en) 1996-12-11
CA2177413A1 (en) 1996-12-08
MX9602144A (es) 1997-09-30
KR970004469A (ko) 1997-01-29
EP0747884B1 (en) 2002-07-31
EP0747884A3 (en) 1997-09-10
DE69622646D1 (de) 2002-09-05
AU5463796A (en) 1996-12-19

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