AU2001230190A1 - System and method for modifying speech signals - Google Patents

System and method for modifying speech signals

Info

Publication number
AU2001230190A1
AU2001230190A1 AU2001230190A AU3019001A AU2001230190A1 AU 2001230190 A1 AU2001230190 A1 AU 2001230190A1 AU 2001230190 A AU2001230190 A AU 2001230190A AU 3019001 A AU3019001 A AU 3019001A AU 2001230190 A1 AU2001230190 A1 AU 2001230190A1
Authority
AU
Australia
Prior art keywords
speech signal
speech signals
wideband
frequency range
modifying speech
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
AU2001230190A
Inventor
Petra Deutgen
Harald Gustafsson
Ulf Lindgren
Clas Thurban
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2001230190A1 publication Critical patent/AU2001230190A1/en
Abandoned legal-status Critical Current

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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Abstract

A system and method for speech signal enhancement upsamples a narrowband speech signal at a receiver to generate a wideband speech signal. The lower frequency range of the wideband speech signal is reproduced using the received narrowband speech signal. The received narrowband speech signal is analyzed to determine its formants and pitch information. The upper frequency range of the wideband speech signal is synthesized using information derived from the received narrowband speech signal.
AU2001230190A 2000-01-28 2001-01-17 System and method for modifying speech signals Abandoned AU2001230190A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US17872900P 2000-01-28 2000-01-28
US60178729 2000-01-28
US09/754,993 US6704711B2 (en) 2000-01-28 2001-01-05 System and method for modifying speech signals
US09754993 2001-01-05
PCT/EP2001/000451 WO2001056021A1 (en) 2000-01-28 2001-01-17 System and method for modifying speech signals

Publications (1)

Publication Number Publication Date
AU2001230190A1 true AU2001230190A1 (en) 2001-08-07

Family

ID=26874591

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001230190A Abandoned AU2001230190A1 (en) 2000-01-28 2001-01-17 System and method for modifying speech signals

Country Status (7)

Country Link
US (1) US6704711B2 (en)
EP (1) EP1252621B1 (en)
CN (1) CN1185626C (en)
AT (1) ATE253766T1 (en)
AU (1) AU2001230190A1 (en)
DE (1) DE60101148T2 (en)
WO (1) WO2001056021A1 (en)

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Also Published As

Publication number Publication date
ATE253766T1 (en) 2003-11-15
EP1252621A1 (en) 2002-10-30
WO2001056021A1 (en) 2001-08-02
US6704711B2 (en) 2004-03-09
CN1185626C (en) 2005-01-19
US20010044722A1 (en) 2001-11-22
EP1252621B1 (en) 2003-11-05
CN1397064A (en) 2003-02-12
DE60101148T2 (en) 2004-05-27
DE60101148D1 (en) 2003-12-11

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