CA2256064A1 - Device for determining the quality of an output signal to be generated by a signal processing circuit, and also method - Google Patents

Device for determining the quality of an output signal to be generated by a signal processing circuit, and also method

Info

Publication number
CA2256064A1
CA2256064A1 CA002256064A CA2256064A CA2256064A1 CA 2256064 A1 CA2256064 A1 CA 2256064A1 CA 002256064 A CA002256064 A CA 002256064A CA 2256064 A CA2256064 A CA 2256064A CA 2256064 A1 CA2256064 A1 CA 2256064A1
Authority
CA
Canada
Prior art keywords
signal
quality
determining
output signal
quality signal
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.)
Granted
Application number
CA002256064A
Other languages
French (fr)
Other versions
CA2256064C (en
Inventor
John Gerard Beerends
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 PTT Nederland 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 PTT Nederland NV filed Critical Koninklijke PTT Nederland NV
Publication of CA2256064A1 publication Critical patent/CA2256064A1/en
Application granted granted Critical
Publication of CA2256064C publication Critical patent/CA2256064C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

A device for determining the quality of an output signal originating from a signal processing circuit is provided with a first series circuit for receiving the output signal and with a second series circuit for receiving a reference signal and generates an objective quality signal by means of a combining circuit coupled to the two series circuits. The poor correlation between said objective quality signal and a subjective quality signal can be improved by inside the combining circuit comparing a differential signal which has been integrated with respect to frequency with a predefined value and then in dependence of a comparison result integrating it with respect to time or not, and/or comparing a quality signal associated with a left channel with a quality signal associated with a right channel and selecting the quality signal having the largest value and modifying it in dependence of integrated differential signals.
CA002256064A 1996-05-21 1997-05-16 Device for determining the quality of an output signal to be generated by a signal processing circuit, and also method Expired - Fee Related CA2256064C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96201348A EP0809236B1 (en) 1996-05-21 1996-05-21 Device for determining the quality of an output signal to be generated by a signal processing circuit, and also method
EP96201348.8 1996-05-21
PCT/EP1997/002712 WO1997044779A1 (en) 1996-05-21 1997-05-16 Device for determining the quality of an output signal to be generated by a signal processing circuit, and also method

Publications (2)

Publication Number Publication Date
CA2256064A1 true CA2256064A1 (en) 1997-11-27
CA2256064C CA2256064C (en) 2004-09-07

Family

ID=8223989

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002256064A Expired - Fee Related CA2256064C (en) 1996-05-21 1997-05-16 Device for determining the quality of an output signal to be generated by a signal processing circuit, and also method

Country Status (9)

Country Link
EP (2) EP0809236B1 (en)
JP (1) JP3568538B2 (en)
CN (1) CN1121677C (en)
AT (2) ATE205009T1 (en)
AU (1) AU3167797A (en)
CA (1) CA2256064C (en)
DE (2) DE69614829T2 (en)
ES (2) ES2161965T3 (en)
WO (1) WO1997044779A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840548C2 (en) 1998-08-27 2001-02-15 Deutsche Telekom Ag Procedures for instrumental language quality determination
NL1014075C2 (en) 2000-01-13 2001-07-16 Koninkl Kpn Nv Method and device for determining the quality of a signal.
WO2001065543A1 (en) * 2000-02-29 2001-09-07 Telefonaktiebolaget Lm Ericsson (Publ) Compensation for linear filtering using frequency weighting factors
CA2580763C (en) * 2004-09-20 2014-07-29 John Gerard Beerends Frequency compensation for perceptual speech analysis
EP2048657B1 (en) * 2007-10-11 2010-06-09 Koninklijke KPN N.V. Method and system for speech intelligibility measurement of an audio transmission system
EP2733700A1 (en) * 2012-11-16 2014-05-21 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Method of and apparatus for evaluating intelligibility of a degraded speech signal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0398318A (en) * 1989-09-11 1991-04-23 Fujitsu Ltd Voice coding system
JPH07261797A (en) * 1994-03-18 1995-10-13 Mitsubishi Electric Corp Signal encoding device and signal decoding device

Also Published As

Publication number Publication date
EP0809236B1 (en) 2001-08-29
WO1997044779A1 (en) 1997-11-27
ES2182094T3 (en) 2003-03-01
CN1225738A (en) 1999-08-11
JP2000515985A (en) 2000-11-28
EP0901677A1 (en) 1999-03-17
ATE222015T1 (en) 2002-08-15
CN1121677C (en) 2003-09-17
DE69714585D1 (en) 2002-09-12
DE69714585T2 (en) 2003-04-03
CA2256064C (en) 2004-09-07
EP0809236A1 (en) 1997-11-26
DE69614829D1 (en) 2001-10-04
DE69614829T2 (en) 2002-04-04
EP0901677B1 (en) 2002-08-07
ES2161965T3 (en) 2001-12-16
AU3167797A (en) 1997-12-09
ATE205009T1 (en) 2001-09-15
JP3568538B2 (en) 2004-09-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130516