AU1839001A - Mobile to mobile digital wireless connection having enhanced voice quality - Google Patents

Mobile to mobile digital wireless connection having enhanced voice quality Download PDF

Info

Publication number
AU1839001A
AU1839001A AU18390/01A AU1839001A AU1839001A AU 1839001 A AU1839001 A AU 1839001A AU 18390/01 A AU18390/01 A AU 18390/01A AU 1839001 A AU1839001 A AU 1839001A AU 1839001 A AU1839001 A AU 1839001A
Authority
AU
Australia
Prior art keywords
voice signal
adaptive filter
decoder
modified
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.)
Abandoned
Application number
AU18390/01A
Other languages
English (en)
Inventor
Mahmoud Ragaei Sherif
Ahmed A. Tarraf
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of AU1839001A publication Critical patent/AU1839001A/en
Abandoned legal-status Critical Current

Links

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

Landscapes

  • 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)
AU18390/01A 2000-02-14 2001-02-09 Mobile to mobile digital wireless connection having enhanced voice quality Abandoned AU1839001A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/503990 2000-02-14
US09/503,990 US7006787B1 (en) 2000-02-14 2000-02-14 Mobile to mobile digital wireless connection having enhanced voice quality

Publications (1)

Publication Number Publication Date
AU1839001A true AU1839001A (en) 2001-08-16

Family

ID=24004388

Family Applications (1)

Application Number Title Priority Date Filing Date
AU18390/01A Abandoned AU1839001A (en) 2000-02-14 2001-02-09 Mobile to mobile digital wireless connection having enhanced voice quality

Country Status (9)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003217859A1 (en) * 2002-05-13 2003-12-02 Conexant Systems, Inc. Transcoding of speech in a packet 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
KR20050122240A (ko) * 2003-04-08 2005-12-28 닛본 덴끼 가부시끼가이샤 부호 변환 방법 및 장치
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
CN101322423B (zh) * 2005-11-30 2011-12-14 艾利森电话股份有限公司 用于无级联操作信号传送的系统和方法
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

Family Cites Families (14)

* Cited by examiner, † Cited by third party
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
US5694519A (en) 1992-02-18 1997-12-02 Lucent Technologies, Inc. Tunable post-filter for tandem coders
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
GB9706174D0 (en) * 1997-03-25 1997-11-19 Secr Defence Recognition system
US5995923A (en) * 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders
EP0947068A2 (en) * 1997-09-10 1999-10-06 Cellon France SAS A communication system and a terminal
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

Also Published As

Publication number Publication date
EP1126439B1 (en) 2003-01-15
CA2330985A1 (en) 2001-08-14
CN1309521A (zh) 2001-08-22
DE60001209D1 (de) 2003-02-20
BR0100384A (pt) 2001-10-30
KR100444418B1 (ko) 2004-08-16
EP1126439A3 (en) 2001-08-29
DE60001209T2 (de) 2003-11-13
JP2001272998A (ja) 2001-10-05
EP1126439A2 (en) 2001-08-22
KR20010082625A (ko) 2001-08-30
US7006787B1 (en) 2006-02-28

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Legal Events

Date Code Title Description
MK1 Application lapsed section 142(2)(a) - no request for examination in relevant period