KudoZ home » French to English » Science

analyse "quéfrentielle"

English translation: "quefrency" analysis

Advertisement

Login or register (free and only takes a few minutes) to participate in this question.

You will also have access to many other tools and opportunities designed for those who have language-related jobs
(or are passionate about them). Participation is free and the site has a strict confidentiality policy.
GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:analyse "quéfrentielle"
English translation:"quefrency" analysis
Entered by: Paul Stevens
Options:
- Contribute to this entry
- Include in personal glossary

20:09 Jan 2, 2003
French to English translations [PRO]
Science
French term or phrase: analyse "quéfrentielle"
From a report on the analysis of machinery:

"L'analyse "quéfrentielle" permet de détecter une périodicité dans le spectre et de la visualiser de manière plus distincte."
Paul Stevens
Local time: 08:27
Quefrency Analysis
Explanation:
It is another type of analysis, not "frequency analysis":

... 2. In 1963, Bogert, Healy and Tukey published a paper with the unusual title "The Quefrency Analysis of Time Series for Echoes: Cepstrum, Pseudoautocovariance ...
http://soulinvitation.com/cepstrum/

--------------------------------------------------
Note added at 2003-01-03 01:01:26 (GMT)
--------------------------------------------------

One approach, homomorphic analysis, involves converting the given input into a psuedo-time domain known as \"quefrency\" using a transformation called the real Cepstrum. In this domain, convoluted components are spatially separated: slow-varying components (such as the vocal tract) lie closer to the origin while fast-varying components (such as the glottis) are spread out over the rest of the quefrency domain.
http://www.students.miami.edu/~tdallman/speech/analysis/

Bogert et al., 1963
Bogert, B. P., Healy, M. J., and Tukey, J. W. (1963).
The quefrency analysis of time series for echoes: cepstrum, pseudo-autocovariance, cross-cepstrum, and shape cracking.
In Rosenblatt, M., editor, Time Series Analysis, pages 209-243. J. Wiley, New York.
http://www.ispeak.nl/prfhtm/node25.html

Logiciel \"Analyse\"
... On coupe alors le signal cepstral à une quéfrence tc plus petite que celle du fondamental et on effectue ensuite le calcul inverse pour revenir au spectre ...
http://www.caip.rutgers.edu/~chenoukh/MyPhDThesis/ANEXE_1.ht...

... A subsampled set of 16 lower quefrencies represents the formants. The gain of the speech signal will influence only the quefrence coefficient c. 0. at 0 Hz. ...
http://www.epfl.ch/horbelt/papers/reports/SBH95.lipread2.ps....

... Quefrence (ms) Amplitude. Fondements théoriques. ...
http://www-poleia.lip6.fr/PAROLE/articles/thesePG97.ps.gz

--------------------------------------------------
Note added at 2003-01-03 01:07:08 (GMT)
--------------------------------------------------

... Power Spectral Density Cepstrum, Quefrency Time Spectral Map (Spectragram) RPM Spectral Map Order Analysis/Tracking. ...
http://www.sdrl.uc.edu/seminar_info.ps

Reflecting on Echoes and the Cepstrum
... various terms from signal processing (spectrum, frequency, phase, analysis) were rearranged into anagrams (cepstrum, quefrency, saphe, alanysis ...
http://www.libinst.com/cepst.htm

... LECTURE 13: CEPSTRAL ANALYSIS G Objectives: H Introduce homomorphic transformations H ... The cepstrum exists in a domain referred to as quefrency (reversal of the ...
http://www.isip.msstate.edu/publications/courses/ece_8463/le...

THE QUEFRENCY DOMAIN. The Signature Cepstrum. Cascades; Indices;
Masks: Broad; Narrow. Pass Band Analysis. Broad; Narrow. ...
http://www-mec.eng.monash.edu.au/mec4437/vibrationbasedmonit... tsld011.htm
Selected response from:

xxxVera Fluhr
Local time: 09:27
Grading comment
Was it really that simple? I've never come across this word before, but it clearly exists. Many thanks, Vera.
4 KudoZ points were awarded for this answer

Advertisement


Summary of answers provided
4 +2Quefrency AnalysisxxxVera Fluhr


  

Answers


4 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
Quefrency Analysis


Explanation:
It is another type of analysis, not "frequency analysis":

... 2. In 1963, Bogert, Healy and Tukey published a paper with the unusual title "The Quefrency Analysis of Time Series for Echoes: Cepstrum, Pseudoautocovariance ...
http://soulinvitation.com/cepstrum/

--------------------------------------------------
Note added at 2003-01-03 01:01:26 (GMT)
--------------------------------------------------

One approach, homomorphic analysis, involves converting the given input into a psuedo-time domain known as \"quefrency\" using a transformation called the real Cepstrum. In this domain, convoluted components are spatially separated: slow-varying components (such as the vocal tract) lie closer to the origin while fast-varying components (such as the glottis) are spread out over the rest of the quefrency domain.
http://www.students.miami.edu/~tdallman/speech/analysis/

Bogert et al., 1963
Bogert, B. P., Healy, M. J., and Tukey, J. W. (1963).
The quefrency analysis of time series for echoes: cepstrum, pseudo-autocovariance, cross-cepstrum, and shape cracking.
In Rosenblatt, M., editor, Time Series Analysis, pages 209-243. J. Wiley, New York.
http://www.ispeak.nl/prfhtm/node25.html

Logiciel \"Analyse\"
... On coupe alors le signal cepstral à une quéfrence tc plus petite que celle du fondamental et on effectue ensuite le calcul inverse pour revenir au spectre ...
http://www.caip.rutgers.edu/~chenoukh/MyPhDThesis/ANEXE_1.ht...

... A subsampled set of 16 lower quefrencies represents the formants. The gain of the speech signal will influence only the quefrence coefficient c. 0. at 0 Hz. ...
http://www.epfl.ch/horbelt/papers/reports/SBH95.lipread2.ps....

... Quefrence (ms) Amplitude. Fondements théoriques. ...
http://www-poleia.lip6.fr/PAROLE/articles/thesePG97.ps.gz

--------------------------------------------------
Note added at 2003-01-03 01:07:08 (GMT)
--------------------------------------------------

... Power Spectral Density Cepstrum, Quefrency Time Spectral Map (Spectragram) RPM Spectral Map Order Analysis/Tracking. ...
http://www.sdrl.uc.edu/seminar_info.ps

Reflecting on Echoes and the Cepstrum
... various terms from signal processing (spectrum, frequency, phase, analysis) were rearranged into anagrams (cepstrum, quefrency, saphe, alanysis ...
http://www.libinst.com/cepst.htm

... LECTURE 13: CEPSTRAL ANALYSIS G Objectives: H Introduce homomorphic transformations H ... The cepstrum exists in a domain referred to as quefrency (reversal of the ...
http://www.isip.msstate.edu/publications/courses/ece_8463/le...

THE QUEFRENCY DOMAIN. The Signature Cepstrum. Cascades; Indices;
Masks: Broad; Narrow. Pass Band Analysis. Broad; Narrow. ...
http://www-mec.eng.monash.edu.au/mec4437/vibrationbasedmonit... tsld011.htm


    Reference: http://soulinvitation.com/cepstrum/
    perso.wanadoo.fr/buniet/sci/buniet_these.pdf
xxxVera Fluhr
Local time: 09:27
Native speaker of: Native in RussianRussian, Native in FrenchFrench
PRO pts in pair: 98
Grading comment
Was it really that simple? I've never come across this word before, but it clearly exists. Many thanks, Vera.

Peer comments on this answer (and responses from the answerer)
agree  Francis MARC: j'ai aussi trouvé des sites en français, mea culpa
5 hrs
  -> Merci, Francis

agree  GILOU
6 hrs
  -> Merci, Gilles
Login to enter a peer comment (or grade)




Return to KudoZ list


KudoZ™ translation help
The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases.



See also:



Term search
  • All of ProZ.com
  • Term search
  • Jobs
  • Forums
  • Multiple search