HK1032470A1 - Waveform-based periodicity detector - Google Patents

Waveform-based periodicity detector

Info

Publication number
HK1032470A1
HK1032470A1 HK01102873A HK01102873A HK1032470A1 HK 1032470 A1 HK1032470 A1 HK 1032470A1 HK 01102873 A HK01102873 A HK 01102873A HK 01102873 A HK01102873 A HK 01102873A HK 1032470 A1 HK1032470 A1 HK 1032470A1
Authority
HK
Hong Kong
Prior art keywords
waveform
periodicity detector
based periodicity
detector
periodicity
Prior art date
Application number
HK01102873A
Other languages
English (en)
Inventor
Fisseha Mekuria
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 HK1032470A1 publication Critical patent/HK1032470A1/xx

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
    • G10L25/90—Pitch determination of speech 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
    • 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
    • G10L2025/786—Adaptive threshold

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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
HK01102873A 1997-08-25 2001-04-23 Waveform-based periodicity detector HK1032470A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/917,224 US5970441A (en) 1997-08-25 1997-08-25 Detection of periodicity information from an audio signal
PCT/SE1998/001444 WO1999010879A1 (en) 1997-08-25 1998-08-07 Waveform-based periodicity detector

Publications (1)

Publication Number Publication Date
HK1032470A1 true HK1032470A1 (en) 2001-07-20

Family

ID=25438508

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01102873A HK1032470A1 (en) 1997-08-25 2001-04-23 Waveform-based periodicity detector

Country Status (9)

Country Link
US (1) US5970441A (xx)
EP (1) EP1008140B1 (xx)
CN (1) CN1125430C (xx)
AU (1) AU8565998A (xx)
BR (1) BR9811351B1 (xx)
DE (1) DE69821118D1 (xx)
EE (1) EE200000103A (xx)
HK (1) HK1032470A1 (xx)
WO (1) WO1999010879A1 (xx)

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US6931292B1 (en) 2000-06-19 2005-08-16 Jabra Corporation Noise reduction method and apparatus
US6708147B2 (en) 2001-02-28 2004-03-16 Telefonaktiebolaget Lm Ericsson(Publ) Method and apparatus for providing comfort noise in communication system with discontinuous transmission
US6876965B2 (en) 2001-02-28 2005-04-05 Telefonaktiebolaget Lm Ericsson (Publ) Reduced complexity voice activity detector
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US20030163304A1 (en) * 2002-02-28 2003-08-28 Fisseha Mekuria Error concealment for voice transmission system
US20040260540A1 (en) * 2003-06-20 2004-12-23 Tong Zhang System and method for spectrogram analysis of an audio signal
JP4490090B2 (ja) * 2003-12-25 2010-06-23 株式会社エヌ・ティ・ティ・ドコモ 有音無音判定装置および有音無音判定方法
JP4601970B2 (ja) * 2004-01-28 2010-12-22 株式会社エヌ・ティ・ティ・ドコモ 有音無音判定装置および有音無音判定方法
EP1729410A1 (en) * 2005-06-02 2006-12-06 Sony Ericsson Mobile Communications AB Device and method for audio signal gain control
JP4757158B2 (ja) * 2006-09-20 2011-08-24 富士通株式会社 音信号処理方法、音信号処理装置及びコンピュータプログラム
JP4882899B2 (ja) * 2007-07-25 2012-02-22 ソニー株式会社 音声解析装置、および音声解析方法、並びにコンピュータ・プログラム
JP4818335B2 (ja) * 2008-08-29 2011-11-16 株式会社東芝 信号帯域拡張装置

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Also Published As

Publication number Publication date
AU8565998A (en) 1999-03-16
CN1125430C (zh) 2003-10-22
BR9811351A (pt) 2000-09-12
EE200000103A (et) 2000-12-15
CN1276897A (zh) 2000-12-13
EP1008140A1 (en) 2000-06-14
BR9811351B1 (pt) 2009-05-05
US5970441A (en) 1999-10-19
WO1999010879A1 (en) 1999-03-04
EP1008140B1 (en) 2004-01-14
DE69821118D1 (de) 2004-02-19

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Effective date: 20180806