BR9610290A - Process to increase speech intelligibility in audio signals apparatus to reduce noise in frames received from digitized audio signals and telecommunications system - Google Patents

Process to increase speech intelligibility in audio signals apparatus to reduce noise in frames received from digitized audio signals and telecommunications system

Info

Publication number
BR9610290A
BR9610290A BR9610290A BR9610290A BR9610290A BR 9610290 A BR9610290 A BR 9610290A BR 9610290 A BR9610290 A BR 9610290A BR 9610290 A BR9610290 A BR 9610290A BR 9610290 A BR9610290 A BR 9610290A
Authority
BR
Brazil
Prior art keywords
audio signals
telecommunications system
reduce noise
frames received
speech intelligibility
Prior art date
Application number
BR9610290A
Other languages
Portuguese (pt)
Inventor
Torbjoern W Soelve
Original Assignee
Ericsson Ge Mobile 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 Ge Mobile Inc filed Critical Ericsson Ge Mobile Inc
Publication of BR9610290A publication Critical patent/BR9610290A/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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)
BR9610290A 1995-09-14 1996-09-13 Process to increase speech intelligibility in audio signals apparatus to reduce noise in frames received from digitized audio signals and telecommunications system BR9610290A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52800595A 1995-09-14 1995-09-14
PCT/US1996/014665 WO1997010586A1 (en) 1995-09-14 1996-09-13 System for adaptively filtering audio signals to enhance speech intelligibility in noisy environmental conditions

Publications (1)

Publication Number Publication Date
BR9610290A true BR9610290A (en) 1999-03-16

Family

ID=24103874

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9610290A BR9610290A (en) 1995-09-14 1996-09-13 Process to increase speech intelligibility in audio signals apparatus to reduce noise in frames received from digitized audio signals and telecommunications system

Country Status (15)

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

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WO1997010586A1 (en) 1997-03-20
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