WO2001002929A3 - Coded domain noise control - Google Patents

Coded domain noise control Download PDF

Info

Publication number
WO2001002929A3
WO2001002929A3 PCT/US2000/018165 US0018165W WO0102929A3 WO 2001002929 A3 WO2001002929 A3 WO 2001002929A3 US 0018165 W US0018165 W US 0018165W WO 0102929 A3 WO0102929 A3 WO 0102929A3
Authority
WO
WIPO (PCT)
Prior art keywords
parameter
compression code
noise control
domain noise
coded domain
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.)
Ceased
Application number
PCT/US2000/018165
Other languages
French (fr)
Other versions
WO2001002929A2 (en
Inventor
Ravi Chandran
Daniel J Marchok
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.)
Coriant Operations Inc
Original Assignee
Tellabs Operations 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 Tellabs Operations Inc filed Critical Tellabs Operations Inc
Priority to JP2001508667A priority Critical patent/JP2003504669A/en
Priority to AU60636/00A priority patent/AU6063600A/en
Priority to CA002378035A priority patent/CA2378035A1/en
Priority to EP00946954A priority patent/EP1208413A2/en
Publication of WO2001002929A2 publication Critical patent/WO2001002929A2/en
Publication of WO2001002929A3 publication Critical patent/WO2001002929A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

A communications system (8) transmits digital signals using a compression code comprising a plurality of parameters including a first parameter. The parameters represent an audio signal comprising a plurality of audio characteristics, including a noise characteristic. The compression code is decodable by a plurality of decoding steps. A processor (150) is responsive to the compression code to read at least the first parameter. Based on such signals, the processor adjusts the first parameter and writes the adjusted first parameter into the compression code. As a result, the noise condition is effectively managed.
PCT/US2000/018165 1999-07-02 2000-06-30 Coded domain noise control Ceased WO2001002929A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001508667A JP2003504669A (en) 1999-07-02 2000-06-30 Coding domain noise control
AU60636/00A AU6063600A (en) 1999-07-02 2000-06-30 Coded domain noise control
CA002378035A CA2378035A1 (en) 1999-07-02 2000-06-30 Coded domain noise control
EP00946954A EP1208413A2 (en) 1999-07-02 2000-06-30 Coded domain noise control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14213699P 1999-07-02 1999-07-02
US60/142,136 1999-07-02

Publications (2)

Publication Number Publication Date
WO2001002929A2 WO2001002929A2 (en) 2001-01-11
WO2001002929A3 true WO2001002929A3 (en) 2001-07-19

Family

ID=22498680

Family Applications (3)

Application Number Title Priority Date Filing Date
PCT/US2000/018293 Ceased WO2001003317A1 (en) 1999-07-02 2000-06-30 Coded domain adaptive level control of compressed speech
PCT/US2000/018104 Ceased WO2001003316A1 (en) 1999-07-02 2000-06-30 Coded domain echo control
PCT/US2000/018165 Ceased WO2001002929A2 (en) 1999-07-02 2000-06-30 Coded domain noise control

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PCT/US2000/018293 Ceased WO2001003317A1 (en) 1999-07-02 2000-06-30 Coded domain adaptive level control of compressed speech
PCT/US2000/018104 Ceased WO2001003316A1 (en) 1999-07-02 2000-06-30 Coded domain echo control

Country Status (5)

Country Link
EP (3) EP1208413A2 (en)
JP (3) JP2003533902A (en)
AU (3) AU6067100A (en)
CA (3) CA2378062A1 (en)
WO (3) WO2001003317A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1301018A1 (en) * 2001-10-02 2003-04-09 Alcatel Apparatus and method for modifying a digital signal in the coded domain
JP3946074B2 (en) * 2002-04-05 2007-07-18 日本電信電話株式会社 Audio processing device
JP3876781B2 (en) 2002-07-16 2007-02-07 ソニー株式会社 Receiving apparatus and receiving method, recording medium, and program
EP1521242A1 (en) * 2003-10-01 2005-04-06 Siemens Aktiengesellschaft Speech coding method applying noise reduction by modifying the codebook gain
US7613607B2 (en) 2003-12-18 2009-11-03 Nokia Corporation Audio enhancement in coded domain
US8874437B2 (en) 2005-03-28 2014-10-28 Tellabs Operations, Inc. Method and apparatus for modifying an encoded signal for voice quality enhancement
US8078659B2 (en) * 2005-10-31 2011-12-13 Telefonaktiebolaget L M Ericsson (Publ) Reduction of digital filter delay
US7852792B2 (en) * 2006-09-19 2010-12-14 Alcatel-Lucent Usa Inc. Packet based echo cancellation and suppression
JP4915576B2 (en) * 2007-05-28 2012-04-11 パナソニック株式会社 Audio transmission system
JP4915577B2 (en) * 2007-05-28 2012-04-11 パナソニック株式会社 Audio transmission system
JP4915575B2 (en) * 2007-05-28 2012-04-11 パナソニック株式会社 Audio transmission system
US8032365B2 (en) * 2007-08-31 2011-10-04 Tellabs Operations, Inc. Method and apparatus for controlling echo in the coded domain
WO2012106926A1 (en) 2011-07-25 2012-08-16 华为技术有限公司 A device and method for controlling echo in parameter domain
TWI469135B (en) * 2011-12-22 2015-01-11 Univ Kun Shan Adaptive differential pulse code modulation (adpcm) encoding and decoding method
JP6011188B2 (en) * 2012-09-18 2016-10-19 沖電気工業株式会社 Echo path delay measuring apparatus, method and program
JP6816277B2 (en) 2017-07-03 2021-01-20 パイオニア株式会社 Signal processing equipment, control methods, programs and storage media

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
US5097507A (en) * 1989-12-22 1992-03-17 General Electric Company Fading bit error protection for digital cellular multi-pulse speech coder
US5680508A (en) * 1991-05-03 1997-10-21 Itt Corporation Enhancement of speech coding in background noise for low-rate speech coder

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0683114B2 (en) * 1985-03-08 1994-10-19 松下電器産業株式会社 Eco-Cancer
US5140543A (en) * 1989-04-18 1992-08-18 Victor Company Of Japan, Ltd. Apparatus for digitally processing audio signal
JP3353257B2 (en) * 1993-08-30 2002-12-03 日本電信電話株式会社 Echo canceller with speech coding and decoding
US5828995A (en) * 1995-02-28 1998-10-27 Motorola, Inc. Method and apparatus for intelligible fast forward and reverse playback of time-scale compressed voice messages
JPH0954600A (en) * 1995-08-14 1997-02-25 Toshiba Corp Speech coding communication device
JPH0993132A (en) * 1995-09-27 1997-04-04 Toshiba Corp Encoding / decoding apparatus and method
JPH10143197A (en) * 1996-11-06 1998-05-29 Matsushita Electric Ind Co Ltd Playback device
US5943645A (en) * 1996-12-19 1999-08-24 Northern Telecom Limited Method and apparatus for computing measures of echo
JP3283200B2 (en) * 1996-12-19 2002-05-20 ケイディーディーアイ株式会社 Method and apparatus for converting coding rate of coded audio data
US6064693A (en) * 1997-02-28 2000-05-16 Data Race, Inc. System and method for handling underrun of compressed speech frames due to unsynchronized receive and transmit clock rates
JP3317181B2 (en) * 1997-03-25 2002-08-26 ヤマハ株式会社 Karaoke equipment
US6112177A (en) * 1997-11-07 2000-08-29 At&T Corp. Coarticulation method for audio-visual text-to-speech synthesis
AU732401B2 (en) * 1997-12-24 2001-04-26 Blackberry Limited A method for speech coding, method for speech decoding and their apparatuses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
US5097507A (en) * 1989-12-22 1992-03-17 General Electric Company Fading bit error protection for digital cellular multi-pulse speech coder
US5680508A (en) * 1991-05-03 1997-10-21 Itt Corporation Enhancement of speech coding in background noise for low-rate speech coder

Also Published As

Publication number Publication date
EP1208413A2 (en) 2002-05-29
EP1190495A1 (en) 2002-03-27
AU6063600A (en) 2001-01-22
AU6203300A (en) 2001-01-22
CA2378035A1 (en) 2001-01-11
CA2378012A1 (en) 2001-01-11
WO2001002929A2 (en) 2001-01-11
WO2001003316A1 (en) 2001-01-11
EP1190494A1 (en) 2002-03-27
CA2378062A1 (en) 2001-01-11
AU6067100A (en) 2001-01-22
JP2003504669A (en) 2003-02-04
WO2001003317A1 (en) 2001-01-11
JP2003533902A (en) 2003-11-11
JP2003503760A (en) 2003-01-28

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