DK507280A - Fremgangsmaade og apparat til tilvejebringelse af kvalitetsmaalinger paa tale-transmissionssystem - Google Patents

Fremgangsmaade og apparat til tilvejebringelse af kvalitetsmaalinger paa tale-transmissionssystem

Info

Publication number
DK507280A
DK507280A DK507280A DK507280A DK507280A DK 507280 A DK507280 A DK 507280A DK 507280 A DK507280 A DK 507280A DK 507280 A DK507280 A DK 507280A DK 507280 A DK507280 A DK 507280A
Authority
DK
Denmark
Prior art keywords
procedure
transmission system
voice transmission
quality measurements
providing quality
Prior art date
Application number
DK507280A
Other languages
English (en)
Other versions
DK151757B (da
DK151757C (da
Inventor
C Scagliola
R Billi
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Publication of DK507280A publication Critical patent/DK507280A/da
Publication of DK151757B publication Critical patent/DK151757B/da
Application granted granted Critical
Publication of DK151757C publication Critical patent/DK151757C/da

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
    • G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/69—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for evaluating synthetic or decoded voice signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Dc Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
DK507280A 1979-12-14 1980-11-28 Fremgangsmaade og apparat til tilvejebringelse af kvalitetsmaalinger paa tale-transmissionssystemer DK151757C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6940479 1979-12-14
IT69404/79A IT1121496B (it) 1979-12-14 1979-12-14 Procedimento e dispositivo per l effettuazione di misure oggettive di qualita su apparecchiature di trasmissione di segnali fonici

Publications (3)

Publication Number Publication Date
DK507280A true DK507280A (da) 1981-06-15
DK151757B DK151757B (da) 1987-12-28
DK151757C DK151757C (da) 1988-06-13

Family

ID=11312062

Family Applications (1)

Application Number Title Priority Date Filing Date
DK507280A DK151757C (da) 1979-12-14 1980-11-28 Fremgangsmaade og apparat til tilvejebringelse af kvalitetsmaalinger paa tale-transmissionssystemer

Country Status (7)

Country Link
US (1) US4352182A (da)
EP (1) EP0030724B1 (da)
JP (1) JPS5693451A (da)
CA (1) CA1155224A (da)
DE (1) DE3065213D1 (da)
DK (1) DK151757C (da)
IT (1) IT1121496B (da)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8911882A (en) * 1981-10-07 1983-04-14 International Standard Electric Corp. Test signal analyzer
US4672605A (en) * 1984-03-20 1987-06-09 Applied Spectrum Technologies, Inc. Data and voice communications system
US5247458A (en) * 1990-09-11 1993-09-21 Audio Precision, Inc. Method and apparatus for testing a digital system for the occurrence of errors
US5421342A (en) * 1991-01-18 1995-06-06 Mortara Instrument, Inc. Filter apparatus and method for reducing signal noise using multiple signals obtained from a single source
US5890104A (en) * 1992-06-24 1999-03-30 British Telecommunications Public Limited Company Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal
EP0705501B1 (en) * 1993-06-21 1999-11-17 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal
US5706282A (en) * 1994-11-28 1998-01-06 Lucent Technologies Inc. Asymmetric speech coding for a digital cellular communications system
US5875230A (en) * 1996-12-20 1999-02-23 At&T Corp. Interactive measurement system and method for telecommunication networks
US5987320A (en) * 1997-07-17 1999-11-16 Llc, L.C.C. Quality measurement method and apparatus for wireless communicaion networks
US6070091A (en) * 1997-11-28 2000-05-30 Telefonaktiebolaget Lm Ericsson Method for detecting performance degradation in radio base stations due to intermodulation products
DE19818609C2 (de) * 1998-04-20 2000-06-15 Deutsche Telekom Ag Verfahren und Vorrichtung zur Geräuschfilterung
US6438373B1 (en) * 1999-02-22 2002-08-20 Agilent Technologies, Inc. Time synchronization of human speech samples in quality assessment system for communications system
FI107477B (fi) * 1999-12-16 2001-08-15 Valtion Teknillinen Menetelmä signaalien erottamiseksi toisistaan ja suodatin
WO2001065543A1 (en) * 2000-02-29 2001-09-07 Telefonaktiebolaget Lm Ericsson (Publ) Compensation for linear filtering using frequency weighting factors
US7821953B2 (en) * 2005-05-13 2010-10-26 Yahoo! Inc. Dynamically selecting CODECS for managing an audio message
DE60308336T2 (de) * 2002-03-08 2007-09-20 Koninklijke Kpn N.V. Verfahren und system zur messung der übertragungsqualität eines systems
US7308403B2 (en) * 2002-07-01 2007-12-11 Lucent Technologies Inc. Compensation for utterance dependent articulation for speech quality assessment
US7409451B1 (en) * 2003-05-30 2008-08-05 Aol Llc, A Delaware Limited Liability Company Switching between connectivity types to maintain connectivity
JP2005249816A (ja) * 2004-03-01 2005-09-15 Internatl Business Mach Corp <Ibm> 信号強調装置、方法及びプログラム、並びに音声認識装置、方法及びプログラム
US7680655B2 (en) * 2005-05-20 2010-03-16 Alcatel-Lucent Usa Inc. Method and apparatus for measuring the quality of speech transmissions that use speech compression
US20080162119A1 (en) * 2007-01-03 2008-07-03 Lenhardt Martin L Discourse Non-Speech Sound Identification and Elimination
DE102009034093A1 (de) 2009-07-21 2011-01-27 Rohde & Schwarz Gmbh & Co. Kg Frequenzselektive Messvorrichtung und frequenzselektives Messverfahren
US20140016487A1 (en) * 2012-07-13 2014-01-16 Anritsu Company Test system to estimate the uplink or downlink quality of multiple user devices using a mean opinion score (mos)
US9837066B2 (en) * 2013-07-28 2017-12-05 Light Speed Aviation, Inc. System and method for adaptive active noise reduction

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2151981C3 (de) * 1971-10-19 1974-04-18 Wandel U. Goltermann, 7410 Reutlingen Anordnung zur Messung von Amplituden- und Phasenverzerrungen
US3842247A (en) * 1972-10-18 1974-10-15 Bell Telephone Labor Inc Apparatus and method for measuring envelope delay utilizing {90 -point technique
US3862380A (en) * 1973-04-19 1975-01-21 Hekimian Laboratories Inc Intermodulation distortion analyzer
US3875500A (en) * 1973-11-28 1975-04-01 Nasa Pseudo-noise test set for communication system evaluation
HU172706B (hu) * 1975-11-05 1978-11-28 Posta Kiserleti Intezet Sposob i ustrojstvo dlja izmerenija nelinejnosti kvazilinejnykh sistemi
JPS5488048A (en) * 1977-12-26 1979-07-12 Kokusai Denshin Denwa Co Ltd Automatic transversal equalizer
US4191653A (en) * 1979-02-27 1980-03-04 Hampton Quentin L Self washing belt strainer

Also Published As

Publication number Publication date
JPS5693451A (en) 1981-07-29
EP0030724A3 (en) 1981-08-26
DE3065213D1 (en) 1983-11-10
US4352182A (en) 1982-09-28
JPS6223938B2 (da) 1987-05-26
IT7969404A0 (it) 1979-12-14
DK151757B (da) 1987-12-28
CA1155224A (en) 1983-10-11
EP0030724B1 (en) 1983-10-05
EP0030724A2 (en) 1981-06-24
DK151757C (da) 1988-06-13
IT1121496B (it) 1986-04-02

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