KR100444418B1 - 개선된 음성 품질을 갖는 이동 전화 대 이동 전화 디지털 무선 접속 - Google Patents

개선된 음성 품질을 갖는 이동 전화 대 이동 전화 디지털 무선 접속 Download PDF

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Publication number
KR100444418B1
KR100444418B1 KR10-2001-0007241A KR20010007241A KR100444418B1 KR 100444418 B1 KR100444418 B1 KR 100444418B1 KR 20010007241 A KR20010007241 A KR 20010007241A KR 100444418 B1 KR100444418 B1 KR 100444418B1
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KR
South Korea
Prior art keywords
speech signal
speech
signal
adaptive filter
decoder
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KR10-2001-0007241A
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English (en)
Korean (ko)
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KR20010082625A (ko
Inventor
쉐리프마흐머드라가에이
타라프아흐메드에이
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루센트 테크놀러지스 인크
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Publication of KR20010082625A publication Critical patent/KR20010082625A/ko
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
KR10-2001-0007241A 2000-02-14 2001-02-14 개선된 음성 품질을 갖는 이동 전화 대 이동 전화 디지털 무선 접속 Expired - Fee Related KR100444418B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/503,990 US7006787B1 (en) 2000-02-14 2000-02-14 Mobile to mobile digital wireless connection having enhanced voice quality
US09/503,990 2000-02-14

Publications (2)

Publication Number Publication Date
KR20010082625A KR20010082625A (ko) 2001-08-30
KR100444418B1 true KR100444418B1 (ko) 2004-08-16

Family

ID=24004388

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2001-0007241A Expired - Fee Related KR100444418B1 (ko) 2000-02-14 2001-02-14 개선된 음성 품질을 갖는 이동 전화 대 이동 전화 디지털 무선 접속

Country Status (9)

Country Link
US (1) US7006787B1 (enExample)
EP (1) EP1126439B1 (enExample)
JP (1) JP2001272998A (enExample)
KR (1) KR100444418B1 (enExample)
CN (1) CN1309521A (enExample)
AU (1) AU1839001A (enExample)
BR (1) BR0100384A (enExample)
CA (1) CA2330985A1 (enExample)
DE (1) DE60001209T2 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1504441A4 (en) * 2002-05-13 2005-12-14 Conexant Systems Inc TRANSCODING THE VOICE IN A PACKET SWITCHED NETWORK ENVIRONMENT
FR2839836B1 (fr) * 2002-05-16 2004-09-10 Cit Alcatel Terminal de telecommunication permettant de modifier la voix transmise lors d'une communication telephonique
DE602004014919D1 (de) 2003-04-08 2008-08-21 Nec Corp Codeumsetzungsverfahren und einrichtung
KR20050044837A (ko) * 2004-06-08 2005-05-13 삼성전자주식회사 디지털 방송 데이터 출력 중 통화기능을 처리하는이동통신단말기 및 그 방법
KR100700595B1 (ko) 2005-10-29 2007-03-28 엘지전자 주식회사 청각특성 변경을 지원하는 휴대단말기 및 그 방법
ES2523456T3 (es) * 2005-11-30 2014-11-26 Telefonaktiebolaget L- M Ericsson (Publ) Sistemas y métodos para transmisión de señales de funcionamiento sin tándem
US20070131653A1 (en) * 2005-12-09 2007-06-14 Ettinger Gary C Methods and apparatus for processing a substrate
US20070171816A1 (en) * 2006-01-20 2007-07-26 Lucent Technologies Inc. Method and apparatus for call reroute based upon QoS
US20070291648A1 (en) * 2006-06-15 2007-12-20 Lucent Technologies Inc. VoIP voice quality remote for switch-to-switch connections
US9426569B2 (en) * 2013-06-13 2016-08-23 Blackberry Limited Audio signal bandwidth to codec bandwidth analysis and response
EP3277016B1 (en) * 2016-07-29 2019-09-11 Rohde & Schwarz GmbH & Co. KG Measurement system and a method

Citations (2)

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Publication number Priority date Publication date Assignee Title
US5694519A (en) * 1992-02-18 1997-12-02 Lucent Technologies, Inc. Tunable post-filter for tandem coders
KR20010005674A (ko) * 1997-03-25 2001-01-15 스켈톤 에스. 알. 인식 시스템

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Publication number Priority date Publication date Assignee Title
FR2569322B1 (fr) * 1984-08-17 1986-12-05 Trt Telecom Radio Electr Annuleur d'echo utilisant la modulation delta
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5790632A (en) * 1994-09-30 1998-08-04 Qualcom Incorporated Method and apparatus for echo canceling accounting for companding induced quantization error
US5903862A (en) * 1995-01-25 1999-05-11 Weaver, Jr.; Lindsay A. Method and apparatus for detection of tandem vocoding to modify vocoder filtering
JPH08202399A (ja) * 1995-01-27 1996-08-09 Kyocera Corp 復号音声の後処理方法
JP3426871B2 (ja) * 1995-09-18 2003-07-14 株式会社東芝 音声信号のスペクトル形状調整方法および装置
JP3157116B2 (ja) * 1996-03-29 2001-04-16 三菱電機株式会社 音声符号化伝送システム
KR100233463B1 (ko) * 1997-03-07 1999-12-01 윤종용 반향제거장치 및 방법
US5995923A (en) * 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders
WO1999013608A2 (en) * 1997-09-10 1999-03-18 Koninklijke Philips Electronics N.V. A communication system and a terminal having speech encoding and decoding means
US6347141B1 (en) * 1998-08-03 2002-02-12 Conexant Systems, Inc. Method of and apparatus for adaptation of an echo canceller in a system with multitasking
US6434235B1 (en) * 2000-08-01 2002-08-13 Lucent Technologies Inc. Acoustic echo canceler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5694519A (en) * 1992-02-18 1997-12-02 Lucent Technologies, Inc. Tunable post-filter for tandem coders
KR20010005674A (ko) * 1997-03-25 2001-01-15 스켈톤 에스. 알. 인식 시스템

Also Published As

Publication number Publication date
KR20010082625A (ko) 2001-08-30
CN1309521A (zh) 2001-08-22
DE60001209T2 (de) 2003-11-13
US7006787B1 (en) 2006-02-28
EP1126439A3 (en) 2001-08-29
JP2001272998A (ja) 2001-10-05
BR0100384A (pt) 2001-10-30
EP1126439B1 (en) 2003-01-15
AU1839001A (en) 2001-08-16
EP1126439A2 (en) 2001-08-22
CA2330985A1 (en) 2001-08-14
DE60001209D1 (de) 2003-02-20

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