PT1328928E - Dispositivo para expansao da banda de um sinal de voz - Google Patents

Dispositivo para expansao da banda de um sinal de voz

Info

Publication number
PT1328928E
PT1328928E PT01974612T PT01974612T PT1328928E PT 1328928 E PT1328928 E PT 1328928E PT 01974612 T PT01974612 T PT 01974612T PT 01974612 T PT01974612 T PT 01974612T PT 1328928 E PT1328928 E PT 1328928E
Authority
PT
Portugal
Prior art keywords
scaling factor
input signal
signal
speech
characteristic
Prior art date
Application number
PT01974612T
Other languages
English (en)
Inventor
Ojala Pasi
Rotola-Pukkila Jani
Vainio Janne
Mikkola Hannu
Original Assignee
Nokia 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
Application filed by Nokia Corp filed Critical Nokia Corp
Publication of PT1328928E publication Critical patent/PT1328928E/pt

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
    • G10L19/04—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
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted 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)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
PT01974612T 2000-10-18 2001-10-17 Dispositivo para expansao da banda de um sinal de voz PT1328928E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/691,440 US6615169B1 (en) 2000-10-18 2000-10-18 High frequency enhancement layer coding in wideband speech codec

Publications (1)

Publication Number Publication Date
PT1328928E true PT1328928E (pt) 2006-09-29

Family

ID=24776540

Family Applications (1)

Application Number Title Priority Date Filing Date
PT01974612T PT1328928E (pt) 2000-10-18 2001-10-17 Dispositivo para expansao da banda de um sinal de voz

Country Status (14)

Country Link
US (1) US6615169B1 (pt)
EP (1) EP1328928B1 (pt)
JP (1) JP2004512562A (pt)
KR (1) KR100547235B1 (pt)
CN (1) CN1244907C (pt)
AT (1) ATE330311T1 (pt)
AU (1) AU2001294125A1 (pt)
BR (1) BR0114669A (pt)
CA (1) CA2425926C (pt)
DE (1) DE60120734T2 (pt)
ES (1) ES2265442T3 (pt)
PT (1) PT1328928E (pt)
WO (1) WO2002033697A2 (pt)
ZA (1) ZA200302468B (pt)

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CN101006496B (zh) * 2004-08-17 2012-03-21 皇家飞利浦电子股份有限公司 可分级音频编码
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JPWO2008053970A1 (ja) * 2006-11-02 2010-02-25 パナソニック株式会社 音声符号化装置、音声復号化装置、およびこれらの方法
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CN101246688B (zh) * 2007-02-14 2011-01-12 华为技术有限公司 一种对背景噪声信号进行编解码的方法、系统和装置
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Also Published As

Publication number Publication date
JP2004512562A (ja) 2004-04-22
CA2425926A1 (en) 2002-04-25
CN1470052A (zh) 2004-01-21
DE60120734D1 (de) 2006-07-27
WO2002033697A2 (en) 2002-04-25
DE60120734T2 (de) 2007-06-14
AU2001294125A1 (en) 2002-04-29
KR100547235B1 (ko) 2006-01-26
CA2425926C (en) 2009-01-27
EP1328928B1 (en) 2006-06-14
US6615169B1 (en) 2003-09-02
ATE330311T1 (de) 2006-07-15
ES2265442T3 (es) 2007-02-16
KR20030046510A (ko) 2003-06-12
EP1328928A2 (en) 2003-07-23
BR0114669A (pt) 2004-02-17
ZA200302468B (en) 2004-03-29
WO2002033697A3 (en) 2002-07-11
CN1244907C (zh) 2006-03-08

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