AR030386A1 - Metodo y aparato para preservar informacion perceptivamente relevante que no es de habla en una senal de audio durante la codificacion de la senal de audio - Google Patents

Metodo y aparato para preservar informacion perceptivamente relevante que no es de habla en una senal de audio durante la codificacion de la senal de audio

Info

Publication number
AR030386A1
AR030386A1 ARP990105966A ARP990105966A AR030386A1 AR 030386 A1 AR030386 A1 AR 030386A1 AR P990105966 A ARP990105966 A AR P990105966A AR P990105966 A ARP990105966 A AR P990105966A AR 030386 A1 AR030386 A1 AR 030386A1
Authority
AR
Argentina
Prior art keywords
audio signal
determination
information
speech
coding
Prior art date
Application number
ARP990105966A
Other languages
English (en)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26807081&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AR030386(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR030386A1 publication Critical patent/AR030386A1/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
    • 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
    • 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
    • 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
    • G10L2025/783—Detection of presence or absence of voice signals based on threshold decision

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un método para conservar informacion perceptivamente relevante que no es de habla en una senal de audio durante la codificacion de la senal de audio comprende efectuar una primera determinacion en cuanto a si la senal de audio comprende informacion de habla o de ruido, efectuar una segunda determinacion en cuanto a si la senal de audio incluye informacion que no es de habla y si es perceptivamente relevante para el oyente, y anular selectivamente dicha primera determinacion, en respuesta a dicha segunda determinacion. Un aparato que comprende un clasificador para recibir la senal de audio es utilizado para efectuar una primera determinacion en cuanto a si se considera que la senal de audio comprende informacion de habla o ruido, comprende además un detector para recibir la senal de audio y efectuar la segunda determinacion en cuanto a si la senal de audio incluye informacion que no es de habla y sí perceptivamente relevante para el oyente, y logica acoplada al clasificador y al detector, tiene una salida para indicar si la senal de audio incluye informacion perceptivamente relevante, siendo la logica operable para proporcionar selectivamente en la salida la informacion indicativa de la primera determinacion y que también responde a la segunda determinacion para anular selectivamente en la salida la informacion indicativa de la primera determinacion.
ARP990105966A 1998-11-23 1999-11-23 Metodo y aparato para preservar informacion perceptivamente relevante que no es de habla en una senal de audio durante la codificacion de la senal de audio AR030386A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10955698P 1998-11-23 1998-11-23
US09/434,787 US6424938B1 (en) 1998-11-23 1999-11-05 Complex signal activity detection for improved speech/noise classification of an audio signal

Publications (1)

Publication Number Publication Date
AR030386A1 true AR030386A1 (es) 2003-08-20

Family

ID=26807081

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990105966A AR030386A1 (es) 1998-11-23 1999-11-23 Metodo y aparato para preservar informacion perceptivamente relevante que no es de habla en una senal de audio durante la codificacion de la senal de audio

Country Status (15)

Country Link
US (1) US6424938B1 (es)
EP (1) EP1224659B1 (es)
JP (1) JP4025018B2 (es)
KR (1) KR100667008B1 (es)
CN (2) CN1828722B (es)
AR (1) AR030386A1 (es)
AU (1) AU763409B2 (es)
BR (1) BR9915576B1 (es)
CA (1) CA2348913C (es)
DE (1) DE69925168T2 (es)
HK (1) HK1097080A1 (es)
MY (1) MY124630A (es)
RU (1) RU2251750C2 (es)
WO (1) WO2000031720A2 (es)
ZA (1) ZA200103150B (es)

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Also Published As

Publication number Publication date
EP1224659B1 (en) 2005-05-04
WO2000031720A2 (en) 2000-06-02
BR9915576B1 (pt) 2013-04-16
EP1224659A2 (en) 2002-07-24
DE69925168D1 (de) 2005-06-09
US6424938B1 (en) 2002-07-23
HK1097080A1 (en) 2007-06-15
CA2348913C (en) 2009-09-15
KR20010078401A (ko) 2001-08-20
CN1828722A (zh) 2006-09-06
CN1419687A (zh) 2003-05-21
CA2348913A1 (en) 2000-06-02
KR100667008B1 (ko) 2007-01-10
RU2251750C2 (ru) 2005-05-10
MY124630A (en) 2006-06-30
DE69925168T2 (de) 2006-02-16
ZA200103150B (en) 2002-06-26
JP4025018B2 (ja) 2007-12-19
JP2002540441A (ja) 2002-11-26
WO2000031720A3 (en) 2002-03-21
AU1593800A (en) 2000-06-13
CN1257486C (zh) 2006-05-24
CN1828722B (zh) 2010-05-26
AU763409B2 (en) 2003-07-24
BR9915576A (pt) 2001-08-14

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