ATE222015T1 - APPARATUS AND METHOD FOR DETERMINING THE QUALITY OF AN OUTPUT SIGNAL TO BE GENERATED BY A SIGNAL PROCESSING CIRCUIT - Google Patents

APPARATUS AND METHOD FOR DETERMINING THE QUALITY OF AN OUTPUT SIGNAL TO BE GENERATED BY A SIGNAL PROCESSING CIRCUIT

Info

Publication number
ATE222015T1
ATE222015T1 AT97927046T AT97927046T ATE222015T1 AT E222015 T1 ATE222015 T1 AT E222015T1 AT 97927046 T AT97927046 T AT 97927046T AT 97927046 T AT97927046 T AT 97927046T AT E222015 T1 ATE222015 T1 AT E222015T1
Authority
AT
Austria
Prior art keywords
signal
quality
determining
output signal
quality signal
Prior art date
Application number
AT97927046T
Other languages
German (de)
Inventor
John Gerard Beerends
Original Assignee
Koninkl 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 Koninkl Kpn Nv filed Critical Koninkl Kpn Nv
Application granted granted Critical
Publication of ATE222015T1 publication Critical patent/ATE222015T1/en

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
    • 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

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. <IMAGE>
AT97927046T 1996-05-21 1997-05-16 APPARATUS AND METHOD FOR DETERMINING THE QUALITY OF AN OUTPUT SIGNAL TO BE GENERATED BY A SIGNAL PROCESSING CIRCUIT ATE222015T1 (en)

Applications Claiming Priority (2)

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
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 (1)

Publication Number Publication Date
ATE222015T1 true ATE222015T1 (en) 2002-08-15

Family

ID=8223989

Family Applications (2)

Application Number Title Priority Date Filing Date
AT96201348T ATE205009T1 (en) 1996-05-21 1996-05-21 APPARATUS AND METHOD FOR DETERMINING THE QUALITY OF AN OUTPUT SIGNAL TO BE GENERATED BY A SIGNAL PROCESSING CIRCUIT
AT97927046T ATE222015T1 (en) 1996-05-21 1997-05-16 APPARATUS AND METHOD FOR DETERMINING THE QUALITY OF AN OUTPUT SIGNAL TO BE GENERATED BY A SIGNAL PROCESSING CIRCUIT

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT96201348T ATE205009T1 (en) 1996-05-21 1996-05-21 APPARATUS AND METHOD FOR DETERMINING THE QUALITY OF AN OUTPUT SIGNAL TO BE GENERATED BY A SIGNAL PROCESSING CIRCUIT

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
ATE405922T1 (en) * 2004-09-20 2008-09-15 Tno 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
JP2000515985A (en) 2000-11-28
DE69614829D1 (en) 2001-10-04
EP0809236B1 (en) 2001-08-29
EP0901677A1 (en) 1999-03-17
EP0901677B1 (en) 2002-08-07
DE69614829T2 (en) 2002-04-04
JP3568538B2 (en) 2004-09-22
ATE205009T1 (en) 2001-09-15
ES2182094T3 (en) 2003-03-01
ES2161965T3 (en) 2001-12-16
DE69714585T2 (en) 2003-04-03
DE69714585D1 (en) 2002-09-12
CA2256064C (en) 2004-09-07
CA2256064A1 (en) 1997-11-27
WO1997044779A1 (en) 1997-11-27
CN1121677C (en) 2003-09-17
CN1225738A (en) 1999-08-11
AU3167797A (en) 1997-12-09
EP0809236A1 (en) 1997-11-26

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