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DE69613380D1 - System zur adaptiven filterung von tonsignalen zur verbesserung der sprachverständlichkeit bei umgebungsgeräuschen - Google Patents

System zur adaptiven filterung von tonsignalen zur verbesserung der sprachverständlichkeit bei umgebungsgeräuschen

Info

Publication number
DE69613380D1
DE69613380D1 DE69613380T DE69613380T DE69613380D1 DE 69613380 D1 DE69613380 D1 DE 69613380D1 DE 69613380 T DE69613380 T DE 69613380T DE 69613380 T DE69613380 T DE 69613380T DE 69613380 D1 DE69613380 D1 DE 69613380D1
Authority
DE
Germany
Prior art keywords
sound signals
environmental noise
under environmental
adaptively filtering
improve 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
DE69613380T
Other languages
German (de)
English (en)
Inventor
W Soelve
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.)
Ericsson Inc
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DE69613380D1 publication Critical patent/DE69613380D1/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
    • G10L21/0208—Noise filtering
    • 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
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses
    • 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
    • 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

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)
  • Noise Elimination (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
DE69613380T 1995-09-14 1996-09-13 System zur adaptiven filterung von tonsignalen zur verbesserung der sprachverständlichkeit bei umgebungsgeräuschen Expired - Lifetime DE69613380D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52800595A 1995-09-14 1995-09-14
PCT/US1996/014665 WO1997010586A1 (fr) 1995-09-14 1996-09-13 Systeme de filtrage adaptatif de signaux audio destine a ameliorer l'intelligibilite de la parole dans des environnements bruyants

Publications (1)

Publication Number Publication Date
DE69613380D1 true DE69613380D1 (de) 2001-07-19

Family

ID=24103874

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69613380T Expired - Lifetime DE69613380D1 (de) 1995-09-14 1996-09-13 System zur adaptiven filterung von tonsignalen zur verbesserung der sprachverständlichkeit bei umgebungsgeräuschen

Country Status (15)

Country Link
EP (1) EP0852052B1 (fr)
JP (1) JPH11514453A (fr)
KR (1) KR100423029B1 (fr)
CN (1) CN1121684C (fr)
AU (1) AU724111B2 (fr)
BR (1) BR9610290A (fr)
CA (1) CA2231107A1 (fr)
DE (1) DE69613380D1 (fr)
EE (1) EE03456B1 (fr)
MX (1) MX9801857A (fr)
NO (1) NO981074L (fr)
PL (1) PL185513B1 (fr)
RU (1) RU2163032C2 (fr)
TR (1) TR199800475T1 (fr)
WO (1) WO1997010586A1 (fr)

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KR100423029B1 (ko) 2004-07-01
MX9801857A (es) 1998-11-29
EP0852052A1 (fr) 1998-07-08
EE03456B1 (et) 2001-06-15
NO981074D0 (no) 1998-03-11
CN1121684C (zh) 2003-09-17
NO981074L (no) 1998-05-13
RU2163032C2 (ru) 2001-02-10
JPH11514453A (ja) 1999-12-07
EP0852052B1 (fr) 2001-06-13
CN1201547A (zh) 1998-12-09
AU7078496A (en) 1997-04-01
KR19990044659A (ko) 1999-06-25
CA2231107A1 (fr) 1997-03-20
AU724111B2 (en) 2000-09-14
WO1997010586A1 (fr) 1997-03-20
PL325532A1 (en) 1998-08-03
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PL185513B1 (pl) 2003-05-30
TR199800475T1 (xx) 1998-06-22

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