Effect of modulated delay time of reflection on autocorrelation function and perception of echo
Identifieur interne : 002135 ( Main/Exploration ); précédent : 002134; suivant : 002136Effect of modulated delay time of reflection on autocorrelation function and perception of echo
Auteurs : J. Atagi [Japon] ; R. Weber [Allemagne] ; V. Mellert [Allemagne]Source :
- Journal of sound and vibration [ 0022-460X ] ; 2002.
Descripteurs français
- Pascal (Inist)
English descriptors
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Abstract
An indoor sound field can be regarded more or less as a time-variant system. In this paper, the time-variant model of the impulse response, which consists of a direct sound and a reflection with a modulated delay time, is applied to simulate such a time-variant sound field. The effects of the modulated delay time of reflection are investigated in terms of physical properties and subjective evaluation of the temporal fluctuation of a sound field. The physical properties of the temporal fluctuation are analyzed by using the autocorrelation function (ACF) of the sound field and identified by the factors and behavior of the ACF. To examine subjective evaluation of the temporal fluctuation of a sound field, listening tests on the perception of echo were conducted. Such subjective evaluation may be associated with the ACF of a sound field. The relationship between the physical properties and the subjective evaluation of the temporal fluctuation of a sound field is also discussed.
Affiliations:
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Le document en format XML
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Weber</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of physics, University of Oldenburg</s1><s2>26111 Oldenburg</s2><s3>DEU</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>26111 Oldenburg</wicri:noRegion><wicri:noRegion>University of Oldenburg</wicri:noRegion><wicri:noRegion>26111 Oldenburg</wicri:noRegion></affiliation></author><author><name sortKey="Mellert, V" sort="Mellert, V" uniqKey="Mellert V" first="V." last="Mellert">V. Mellert</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of physics, University of Oldenburg</s1><s2>26111 Oldenburg</s2><s3>DEU</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>26111 Oldenburg</wicri:noRegion><wicri:noRegion>University of Oldenburg</wicri:noRegion><wicri:noRegion>26111 Oldenburg</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">03-0085592</idno><date when="2002">2002</date><idno type="stanalyst">PASCAL 03-0085592 INIST</idno><idno type="RBID">Pascal:03-0085592</idno><idno type="wicri:Area/PascalFrancis/Corpus">000539</idno><idno type="wicri:Area/PascalFrancis/Curation">000109</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000524</idno><idno type="wicri:doubleKey">0022-460X:2002:Atagi J:effect:of:modulated</idno><idno type="wicri:Area/Main/Merge">002215</idno><idno type="wicri:Area/Main/Curation">002135</idno><idno type="wicri:Area/Main/Exploration">002135</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Effect of modulated delay time of reflection on autocorrelation function and perception of echo</title><author><name sortKey="Atagi, J" sort="Atagi, J" uniqKey="Atagi J" first="J." last="Atagi">J. Atagi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Graduate School of Science and Technology Kobe University, Rokkodai</s1><s2>Nada, Kobe, 657-8501</s2><s3>JPN</s3><sZ>1 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Nada, Kobe, 657-8501</wicri:noRegion></affiliation></author><author><name sortKey="Weber, R" sort="Weber, R" uniqKey="Weber R" first="R." last="Weber">R. Weber</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of physics, University of Oldenburg</s1><s2>26111 Oldenburg</s2><s3>DEU</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>26111 Oldenburg</wicri:noRegion><wicri:noRegion>University of Oldenburg</wicri:noRegion><wicri:noRegion>26111 Oldenburg</wicri:noRegion></affiliation></author><author><name sortKey="Mellert, V" sort="Mellert, V" uniqKey="Mellert V" first="V." last="Mellert">V. Mellert</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of physics, University of Oldenburg</s1><s2>26111 Oldenburg</s2><s3>DEU</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>26111 Oldenburg</wicri:noRegion><wicri:noRegion>University of Oldenburg</wicri:noRegion><wicri:noRegion>26111 Oldenburg</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of sound and vibration</title><title level="j" type="abbreviated">J. sound vib.</title><idno type="ISSN">0022-460X</idno><imprint><date when="2002">2002</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of sound and vibration</title><title level="j" type="abbreviated">J. sound vib.</title><idno type="ISSN">0022-460X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Autocorrelation function</term><term>Concert hall</term><term>Delay time</term><term>Experimental study</term><term>Psychoacoustics</term><term>Pulse response</term><term>Room acoustics</term><term>Time varying system</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Acoustique salle</term><term>Salle concert</term><term>Réponse impulsion</term><term>Psychoacoustique</term><term>Etude expérimentale</term><term>Temps retard</term><term>Fonction autocorrélation</term><term>Système paramètre variable</term><term>4366</term><term>4355</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">An indoor sound field can be regarded more or less as a time-variant system. In this paper, the time-variant model of the impulse response, which consists of a direct sound and a reflection with a modulated delay time, is applied to simulate such a time-variant sound field. The effects of the modulated delay time of reflection are investigated in terms of physical properties and subjective evaluation of the temporal fluctuation of a sound field. The physical properties of the temporal fluctuation are analyzed by using the autocorrelation function (ACF) of the sound field and identified by the factors and behavior of the ACF. To examine subjective evaluation of the temporal fluctuation of a sound field, listening tests on the perception of echo were conducted. Such subjective evaluation may be associated with the ACF of a sound field. The relationship between the physical properties and the subjective evaluation of the temporal fluctuation of a sound field is also discussed.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Atagi, J" sort="Atagi, J" uniqKey="Atagi J" first="J." last="Atagi">J. Atagi</name></noRegion></country><country name="Allemagne"><noRegion><name sortKey="Weber, R" sort="Weber, R" uniqKey="Weber R" first="R." last="Weber">R. Weber</name></noRegion><name sortKey="Mellert, V" sort="Mellert, V" uniqKey="Mellert V" first="V." last="Mellert">V. Mellert</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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