DE69619284D1 - Vorrichtung zur Erweiterung der Sprachbandbreite - Google Patents

Vorrichtung zur Erweiterung der Sprachbandbreite

Info

Publication number
DE69619284D1
DE69619284D1 DE69619284T DE69619284T DE69619284D1 DE 69619284 D1 DE69619284 D1 DE 69619284D1 DE 69619284 T DE69619284 T DE 69619284T DE 69619284 T DE69619284 T DE 69619284T DE 69619284 D1 DE69619284 D1 DE 69619284D1
Authority
DE
Germany
Prior art keywords
expanding
voice bandwidth
bandwidth
voice
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
DE69619284T
Other languages
English (en)
Other versions
DE69619284T2 (de
DE69619284T3 (de
Inventor
Mineo Tsushima
Yoshihisa Nakatoh
Takeshi Norimatus
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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=27294668&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69619284(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP05255895A external-priority patent/JP3189614B2/ja
Priority claimed from JP7110425A external-priority patent/JP2798003B2/ja
Priority claimed from JP7258448A external-priority patent/JP2956548B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69619284D1 publication Critical patent/DE69619284D1/de
Publication of DE69619284T2 publication Critical patent/DE69619284T2/de
Publication of DE69619284T3 publication Critical patent/DE69619284T3/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • 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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • 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
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (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)
  • Analogue/Digital Conversion (AREA)
DE69619284T 1995-03-13 1996-03-12 Vorrichtung zur Erweiterung der Sprachbandbreite Expired - Lifetime DE69619284T3 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP5255895 1995-03-13
JP05255895A JP3189614B2 (ja) 1995-03-13 1995-03-13 音声帯域拡大装置
JP11042595 1995-05-09
JP7110425A JP2798003B2 (ja) 1995-05-09 1995-05-09 音声帯域拡大装置および音声帯域拡大方法
JP25844895 1995-10-05
JP7258448A JP2956548B2 (ja) 1995-10-05 1995-10-05 音声帯域拡大装置

Publications (3)

Publication Number Publication Date
DE69619284D1 true DE69619284D1 (de) 2002-03-28
DE69619284T2 DE69619284T2 (de) 2002-10-10
DE69619284T3 DE69619284T3 (de) 2006-04-27

Family

ID=27294668

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69619284T Expired - Lifetime DE69619284T3 (de) 1995-03-13 1996-03-12 Vorrichtung zur Erweiterung der Sprachbandbreite

Country Status (3)

Country Link
US (1) US5978759A (de)
EP (1) EP0732687B2 (de)
DE (1) DE69619284T3 (de)

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JP3189614B2 (ja) † 1995-03-13 2001-07-16 松下電器産業株式会社 音声帯域拡大装置

Also Published As

Publication number Publication date
DE69619284T2 (de) 2002-10-10
DE69619284T3 (de) 2006-04-27
EP0732687A3 (de) 1998-06-17
US5978759A (en) 1999-11-02
EP0732687A2 (de) 1996-09-18
EP0732687B1 (de) 2002-02-20
EP0732687B2 (de) 2005-10-12

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