DE602006004689D1 - Grundfrequenzextraktion mit adaptivem Filter - Google Patents

Grundfrequenzextraktion mit adaptivem Filter

Info

Publication number
DE602006004689D1
DE602006004689D1 DE602006004689T DE602006004689T DE602006004689D1 DE 602006004689 D1 DE602006004689 D1 DE 602006004689D1 DE 602006004689 T DE602006004689 T DE 602006004689T DE 602006004689 T DE602006004689 T DE 602006004689T DE 602006004689 D1 DE602006004689 D1 DE 602006004689D1
Authority
DE
Germany
Prior art keywords
pitch
speech signal
adaptive filter
basic frequency
frequency extraction
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.)
Active
Application number
DE602006004689T
Other languages
English (en)
Inventor
Rajeev Nongpiur
Phillip A Hetherington
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.)
QNIX SOFTWARE SYSTEMS CO., OTTAWA, ONTARIO, CA
Original Assignee
QNX Software Systems Wavemakers Inc
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 QNX Software Systems Wavemakers Inc filed Critical QNX Software Systems Wavemakers Inc
Publication of DE602006004689D1 publication Critical patent/DE602006004689D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/08—Payment architectures
    • G06Q20/10—Payment architectures specially adapted for electronic funds transfer [EFT] systems; specially adapted for home banking systems
    • G06Q20/108—Remote banking, e.g. home banking
    • 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
    • G10L21/0208—Noise filtering
    • G10L2021/02085—Periodic noise
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Physics & Mathematics (AREA)
  • Development Economics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Economics (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Human Computer Interaction (AREA)
  • Theoretical Computer Science (AREA)
  • Telephone Function (AREA)
  • Noise Elimination (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Networks Using Active Elements (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE602006004689T 2005-12-09 2006-11-28 Grundfrequenzextraktion mit adaptivem Filter Active DE602006004689D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/298,052 US7949520B2 (en) 2004-10-26 2005-12-09 Adaptive filter pitch extraction

Publications (1)

Publication Number Publication Date
DE602006004689D1 true DE602006004689D1 (de) 2009-02-26

Family

ID=37675407

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006004689T Active DE602006004689D1 (de) 2005-12-09 2006-11-28 Grundfrequenzextraktion mit adaptivem Filter

Country Status (5)

Country Link
US (2) US7949520B2 (de)
EP (1) EP1796078B1 (de)
AT (1) ATE420431T1 (de)
CA (1) CA2569223C (de)
DE (1) DE602006004689D1 (de)

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CN108550371B (zh) * 2018-03-30 2021-06-01 云知声智能科技股份有限公司 智能语音交互设备快速稳定的回声消除方法
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US7949520B2 (en) 2011-05-24
CA2569223C (en) 2013-01-15
EP1796078B1 (de) 2009-01-07
US20110276324A1 (en) 2011-11-10
US8150682B2 (en) 2012-04-03
ATE420431T1 (de) 2009-01-15
US20060095256A1 (en) 2006-05-04
EP1796078A1 (de) 2007-06-13

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