AU2159201A - Audio circuit and method for wideband to narrowband transition in a communication device - Google Patents

Audio circuit and method for wideband to narrowband transition in a communication device

Info

Publication number
AU2159201A
AU2159201A AU21592/01A AU2159201A AU2159201A AU 2159201 A AU2159201 A AU 2159201A AU 21592/01 A AU21592/01 A AU 21592/01A AU 2159201 A AU2159201 A AU 2159201A AU 2159201 A AU2159201 A AU 2159201A
Authority
AU
Australia
Prior art keywords
wideband
communication device
audio circuit
narrowband transition
narrowband
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
AU21592/01A
Inventor
Dominic Chan
Jonathan Gibbs
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.)
Motorola Solutions UK Ltd
Original Assignee
Motorola Ltd
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 Motorola Ltd filed Critical Motorola Ltd
Publication of AU2159201A publication Critical patent/AU2159201A/en
Abandoned 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

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)
  • Mobile Radio Communication Systems (AREA)
AU21592/01A 1999-12-23 2000-11-13 Audio circuit and method for wideband to narrowband transition in a communication device Abandoned AU2159201A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9930572 1999-12-23
GB9930572A GB2357682B (en) 1999-12-23 1999-12-23 Audio circuit and method for wideband to narrowband transition in a communication device
PCT/EP2000/011364 WO2001048931A2 (en) 1999-12-23 2000-11-13 Audio circuit and method for wideband to narrowband transition in a communication device

Publications (1)

Publication Number Publication Date
AU2159201A true AU2159201A (en) 2001-07-09

Family

ID=10866988

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21592/01A Abandoned AU2159201A (en) 1999-12-23 2000-11-13 Audio circuit and method for wideband to narrowband transition in a communication device

Country Status (3)

Country Link
AU (1) AU2159201A (en)
GB (1) GB2357682B (en)
WO (1) WO2001048931A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7289461B2 (en) * 2001-03-15 2007-10-30 Qualcomm Incorporated Communications using wideband terminals
US7343282B2 (en) 2001-06-26 2008-03-11 Nokia Corporation Method for transcoding audio signals, transcoder, network element, wireless communications network and communications system
WO2003036623A1 (en) * 2001-09-28 2003-05-01 Siemens Aktiengesellschaft Speech extender and method for estimating a broadband speech signal from a narrowband speech signal
DE10252070B4 (en) 2002-11-08 2010-07-15 Palm, Inc. (n.d.Ges. d. Staates Delaware), Sunnyvale Communication terminal with parameterized bandwidth extension and method for bandwidth expansion therefor
FI119533B (en) * 2004-04-15 2008-12-15 Nokia Corp Coding of audio signals
US20050267739A1 (en) * 2004-05-25 2005-12-01 Nokia Corporation Neuroevolution based artificial bandwidth expansion of telephone band speech
CN101263554B (en) 2005-07-22 2011-12-28 法国电信公司 Method for switching rate-and bandwidth-scalable audio decoding rate
BRPI0818927A2 (en) * 2007-11-02 2015-06-16 Huawei Tech Co Ltd Method and apparatus for audio decoding
GB2476041B (en) 2009-12-08 2017-03-01 Skype Encoding and decoding speech signals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2779886B2 (en) * 1992-10-05 1998-07-23 日本電信電話株式会社 Wideband audio signal restoration method
US5455888A (en) * 1992-12-04 1995-10-03 Northern Telecom Limited Speech bandwidth extension method and apparatus
EP0732687B2 (en) * 1995-03-13 2005-10-12 Matsushita Electric Industrial Co., Ltd. Apparatus for expanding speech bandwidth
DE19804581C2 (en) * 1998-02-05 2000-08-17 Siemens Ag Method and radio communication system for the transmission of voice information
EP0945852A1 (en) * 1998-03-25 1999-09-29 BRITISH TELECOMMUNICATIONS public limited company Speech synthesis

Also Published As

Publication number Publication date
GB9930572D0 (en) 2000-02-16
GB2357682A (en) 2001-06-27
WO2001048931A3 (en) 2001-12-13
GB2357682B (en) 2004-09-08
WO2001048931A2 (en) 2001-07-05

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase