The just noticeable difference of center time and clarity index in large reverberant spaces.
Identifieur interne : 001531 ( Main/Exploration ); précédent : 001530; suivant : 001532The just noticeable difference of center time and clarity index in large reverberant spaces.
Auteurs : F. Martellotta [Italie]Source :
- The Journal of the Acoustical Society of America [ 1520-8524 ] ; 2010.
Descripteurs français
- KwdFr :
- Acoustique (MeSH), Adulte (MeSH), Adulte d'âge moyen (MeSH), Conception et construction de locaux (MeSH), Détection du signal (psychologie) (MeSH), Facteurs temps (MeSH), Humains (MeSH), Jeune adulte (MeSH), Musique (MeSH), Perception auditive (MeSH), Stimulation acoustique (MeSH), Vibration (MeSH).
- MESH :
English descriptors
- KwdEn :
- MESH :
Abstract
Just noticeable difference (JND) values are available for most acoustical parameters currently used in practice. However, they have been determined with reference to conditions typically encountered in concert halls and in rooms for speech, covering a range of reverberation times (T) spanning from 0.5 s to 2 s. When reverberation gets longer, the relationship between measured parameters describing acoustic clarity may change significantly and subjective perception might also be different. The proposed research investigates the influence of reverberation time on JND for clarity measures taking into account three reference cases having T values varying from 2 s to 6 s. Measured B-format impulse responses were properly modified to introduce the desired changes and then auralized with two music motifs for presentation on a 4-channel playback system. Listening tests based on paired comparisons were carried out to determine subjective limens. The results proved to be independent of music motifs and showed that JND in the clarity index is almost independent of T, while JND in the center time is significantly related to T and can be assumed as the 8.5% of the reference T(S) value.
DOI: 10.1121/1.3455837
PubMed: 20707435
Affiliations:
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Le document en format XML
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Martellotta</name><affiliation wicri:level="1"><nlm:affiliation>Dipartimento di Architettura e Urbanistica, Politecnico di Bari, via Orabona 4, I70125 Bari, Italy. f.martellotta@poliba.it</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Architettura e Urbanistica, Politecnico di Bari, via Orabona 4, I70125 Bari</wicri:regionArea><wicri:noRegion>I70125 Bari</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20707435</idno><idno type="pmid">20707435</idno><idno type="doi">10.1121/1.3455837</idno><idno type="wicri:Area/Main/Corpus">001541</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001541</idno><idno type="wicri:Area/Main/Curation">001541</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">001541</idno><idno type="wicri:Area/Main/Exploration">001541</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The just noticeable difference of center time and clarity index in large reverberant spaces.</title><author><name sortKey="Martellotta, F" sort="Martellotta, F" uniqKey="Martellotta F" first="F" last="Martellotta">F. Martellotta</name><affiliation wicri:level="1"><nlm:affiliation>Dipartimento di Architettura e Urbanistica, Politecnico di Bari, via Orabona 4, I70125 Bari, Italy. f.martellotta@poliba.it</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Architettura e Urbanistica, Politecnico di Bari, via Orabona 4, I70125 Bari</wicri:regionArea><wicri:noRegion>I70125 Bari</wicri:noRegion></affiliation></author></analytic><series><title level="j">The Journal of the Acoustical Society of America</title><idno type="eISSN">1520-8524</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic Stimulation (MeSH)</term><term>Acoustics (MeSH)</term><term>Adult (MeSH)</term><term>Auditory Perception (MeSH)</term><term>Facility Design and Construction (MeSH)</term><term>Humans (MeSH)</term><term>Middle Aged (MeSH)</term><term>Music (MeSH)</term><term>Signal Detection, Psychological (MeSH)</term><term>Time Factors (MeSH)</term><term>Vibration (MeSH)</term><term>Young Adult (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acoustique (MeSH)</term><term>Adulte (MeSH)</term><term>Adulte d'âge moyen (MeSH)</term><term>Conception et construction de locaux (MeSH)</term><term>Détection du signal (psychologie) (MeSH)</term><term>Facteurs temps (MeSH)</term><term>Humains (MeSH)</term><term>Jeune adulte (MeSH)</term><term>Musique (MeSH)</term><term>Perception auditive (MeSH)</term><term>Stimulation acoustique (MeSH)</term><term>Vibration (MeSH)</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acoustic Stimulation</term><term>Acoustics</term><term>Adult</term><term>Auditory Perception</term><term>Facility Design and Construction</term><term>Humans</term><term>Middle Aged</term><term>Music</term><term>Signal Detection, Psychological</term><term>Time Factors</term><term>Vibration</term><term>Young Adult</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acoustique</term><term>Adulte</term><term>Adulte d'âge moyen</term><term>Conception et construction de locaux</term><term>Détection du signal (psychologie)</term><term>Facteurs temps</term><term>Humains</term><term>Jeune adulte</term><term>Musique</term><term>Perception auditive</term><term>Stimulation acoustique</term><term>Vibration</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Just noticeable difference (JND) values are available for most acoustical parameters currently used in practice. However, they have been determined with reference to conditions typically encountered in concert halls and in rooms for speech, covering a range of reverberation times (T) spanning from 0.5 s to 2 s. When reverberation gets longer, the relationship between measured parameters describing acoustic clarity may change significantly and subjective perception might also be different. The proposed research investigates the influence of reverberation time on JND for clarity measures taking into account three reference cases having T values varying from 2 s to 6 s. Measured B-format impulse responses were properly modified to introduce the desired changes and then auralized with two music motifs for presentation on a 4-channel playback system. Listening tests based on paired comparisons were carried out to determine subjective limens. The results proved to be independent of music motifs and showed that JND in the clarity index is almost independent of T, while JND in the center time is significantly related to T and can be assumed as the 8.5% of the reference T(S) value.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20707435</PMID><DateCompleted><Year>2011</Year><Month>01</Month><Day>27</Day></DateCompleted><DateRevised><Year>2010</Year><Month>08</Month><Day>16</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1520-8524</ISSN><JournalIssue CitedMedium="Internet"><Volume>128</Volume><Issue>2</Issue><PubDate><Year>2010</Year><Month>Aug</Month></PubDate></JournalIssue><Title>The Journal of the Acoustical Society of America</Title><ISOAbbreviation>J Acoust Soc Am</ISOAbbreviation></Journal><ArticleTitle>The just noticeable difference of center time and clarity index in large reverberant spaces.</ArticleTitle><Pagination><MedlinePgn>654-63</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1121/1.3455837</ELocationID><Abstract><AbstractText>Just noticeable difference (JND) values are available for most acoustical parameters currently used in practice. However, they have been determined with reference to conditions typically encountered in concert halls and in rooms for speech, covering a range of reverberation times (T) spanning from 0.5 s to 2 s. When reverberation gets longer, the relationship between measured parameters describing acoustic clarity may change significantly and subjective perception might also be different. The proposed research investigates the influence of reverberation time on JND for clarity measures taking into account three reference cases having T values varying from 2 s to 6 s. Measured B-format impulse responses were properly modified to introduce the desired changes and then auralized with two music motifs for presentation on a 4-channel playback system. Listening tests based on paired comparisons were carried out to determine subjective limens. The results proved to be independent of music motifs and showed that JND in the clarity index is almost independent of T, while JND in the center time is significantly related to T and can be assumed as the 8.5% of the reference T(S) value.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Martellotta</LastName><ForeName>F</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Dipartimento di Architettura e Urbanistica, Politecnico di Bari, via Orabona 4, I70125 Bari, Italy. f.martellotta@poliba.it</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Acoust Soc Am</MedlineTA><NlmUniqueID>7503051</NlmUniqueID><ISSNLinking>0001-4966</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000161" MajorTopicYN="N">Acoustic Stimulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000162" MajorTopicYN="Y">Acoustics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001307" MajorTopicYN="Y">Auditory Perception</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005160" MajorTopicYN="Y">Facility Design and Construction</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009146" MajorTopicYN="Y">Music</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017603" MajorTopicYN="N">Signal Detection, Psychological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014732" MajorTopicYN="N">Vibration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055815" MajorTopicYN="N">Young Adult</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>8</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>8</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>1</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20707435</ArticleId><ArticleId IdType="doi">10.1121/1.3455837</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Italie</li></country></list><tree><country name="Italie"><noRegion><name sortKey="Martellotta, F" sort="Martellotta, F" uniqKey="Martellotta F" first="F" last="Martellotta">F. 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