AU2002223612A1 - Measuring a talking quality of a telephone link in a telecommunications network - Google Patents

Measuring a talking quality of a telephone link in a telecommunications network

Info

Publication number
AU2002223612A1
AU2002223612A1 AU2002223612A AU2361202A AU2002223612A1 AU 2002223612 A1 AU2002223612 A1 AU 2002223612A1 AU 2002223612 A AU2002223612 A AU 2002223612A AU 2361202 A AU2361202 A AU 2361202A AU 2002223612 A1 AU2002223612 A1 AU 2002223612A1
Authority
AU
Australia
Prior art keywords
signal
telephone link
noise
measuring
telecommunications network
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
AU2002223612A
Inventor
Symon Ronald Appel
John Gerard Beerends
Andries Pieter Hekstra
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.)
Koninklijke KPN NV
Original Assignee
Koninklijke KPN NV
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 Koninklijke KPN NV filed Critical Koninklijke KPN NV
Publication of AU2002223612A1 publication Critical patent/AU2002223612A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
    • H04M3/323—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges for the arrangements providing the connection (test connection, test call, call simulation)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2236—Quality of speech transmission monitoring

Abstract

For measuring the influence of noise on the talking quality of a telephone link in a telecommunications network, a talker speech signal (s(t)) and a degraded speech signal (s'(t)) are fed to an objective measurement device (32) for obtaining an output signal (q) representing an estimated value of the talking quality. The degraded signal includes a returned signal (r(t)) originating from the network during transmission of the talker speech signal over the telephone link. The objective measurement carried out by the device is a modified PSQM-like measurement, which is modified as to include a modelling (32b) of masking effects in consequence of noise present in the returned signal. Preferably the modelling includes a noise suppression (42) carried out to a difference signal (D(t,f)) in the loudness density domain using a noise estimation (41). <IMAGE>
AU2002223612A 2000-11-09 2001-10-11 Measuring a talking quality of a telephone link in a telecommunications network Abandoned AU2002223612A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP00203936.0 2000-11-09
EP00203936A EP1206104B1 (en) 2000-11-09 2000-11-09 Measuring a talking quality of a telephone link in a telecommunications network
EP00203936 2000-11-09
PCT/EP2001/011777 WO2002039707A2 (en) 2000-11-09 2001-10-11 Measuring a talking quality of a telephone link in a telecommunications network

Publications (1)

Publication Number Publication Date
AU2002223612A1 true AU2002223612A1 (en) 2002-05-21

Family

ID=8172245

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002223612A Abandoned AU2002223612A1 (en) 2000-11-09 2001-10-11 Measuring a talking quality of a telephone link in a telecommunications network

Country Status (9)

Country Link
US (1) US7366663B2 (en)
EP (2) EP1206104B1 (en)
JP (1) JP4098083B2 (en)
AT (1) ATE333751T1 (en)
AU (1) AU2002223612A1 (en)
DE (1) DE60029453T2 (en)
DK (1) DK1206104T3 (en)
ES (1) ES2267457T3 (en)
WO (1) WO2002039707A2 (en)

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EP1661377A1 (en) 2003-08-28 2006-05-31 Koninklijke KPN N.V. Measuring a talking quality of a communication link in a network
US7525952B1 (en) * 2004-01-07 2009-04-28 Cisco Technology, Inc. Method and apparatus for determining the source of user-perceived voice quality degradation in a network telephony environment
ES2313413T3 (en) * 2004-09-20 2009-03-01 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno FREQUENCY COMPENSATION FOR SPEECH PREVENTION ANALYSIS.
US8199933B2 (en) 2004-10-26 2012-06-12 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
KR101261212B1 (en) 2004-10-26 2013-05-07 돌비 레버러토리즈 라이쎈싱 코오포레이션 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US20060200346A1 (en) * 2005-03-03 2006-09-07 Nortel Networks Ltd. Speech quality measurement based on classification estimation
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AU2007309691B2 (en) 2006-10-20 2011-03-10 Dolby Laboratories Licensing Corporation Audio dynamics processing using a reset
US8521314B2 (en) * 2006-11-01 2013-08-27 Dolby Laboratories Licensing Corporation Hierarchical control path with constraints for audio dynamics processing
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RU2438197C2 (en) * 2007-07-13 2011-12-27 Долби Лэборетериз Лайсенсинг Корпорейшн Audio signal processing using auditory scene analysis and spectral skewness
EP2410517B1 (en) * 2007-09-11 2017-02-22 Deutsche Telekom AG Method and system for the integral and diagnostic assessment of listening speech quality
WO2009086174A1 (en) 2007-12-21 2009-07-09 Srs Labs, Inc. System for adjusting perceived loudness of audio signals
EP2301212A2 (en) * 2008-05-21 2011-03-30 Nxp B.V. Filter device for detecting and/or removing erroneous components in and/or from a signal
DE102008030086A1 (en) * 2008-06-25 2010-01-14 Siemens Aktiengesellschaft Method for providing automatic feed back about quality of voice signal to speaker, involves providing feed back about quality of voice signal to speaker during exceeding or lowering of preset confidence threshold per confidence level
US8949114B2 (en) 2009-06-04 2015-02-03 Optis Wireless Technology, Llc Method and arrangement for estimating the quality degradation of a processed signal
US8655651B2 (en) * 2009-07-24 2014-02-18 Telefonaktiebolaget L M Ericsson (Publ) Method, computer, computer program and computer program product for speech quality estimation
US8538042B2 (en) * 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
US9031221B2 (en) * 2009-12-22 2015-05-12 Cyara Solutions Pty Ltd System and method for automated voice quality testing
JP5606764B2 (en) * 2010-03-31 2014-10-15 クラリオン株式会社 Sound quality evaluation device and program therefor
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time
CN103077727A (en) * 2013-01-04 2013-05-01 华为技术有限公司 Method and device used for speech quality monitoring and prompting
CN106531190B (en) * 2016-10-12 2020-05-05 科大讯飞股份有限公司 Voice quality evaluation method and device
CN106713623A (en) * 2016-12-08 2017-05-24 深圳市传测科技有限公司 Implanted conversation detection system and method for communication terminal

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Also Published As

Publication number Publication date
ATE333751T1 (en) 2006-08-15
DK1206104T3 (en) 2006-10-30
EP1206104B1 (en) 2006-07-19
WO2002039707A2 (en) 2002-05-16
DE60029453D1 (en) 2006-08-31
ES2267457T3 (en) 2007-03-16
EP1206104A1 (en) 2002-05-15
US7366663B2 (en) 2008-04-29
DE60029453T2 (en) 2007-04-12
JP4098083B2 (en) 2008-06-11
US20040042617A1 (en) 2004-03-04
EP1336288A2 (en) 2003-08-20
JP2004514327A (en) 2004-05-13
WO2002039707A3 (en) 2002-07-18

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