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OrJo et la Méta-Mallette 4.0
Get PDFCet article décrit le projet de recherche OrJo 2009-2012 (Orchestre de Joysticks) qui associe quatre structures, PUCE MUSE, le LAM (UPMC), le LIMSI (CNRS, associé à l’UPMC et à l'Université Paris-Sud), et 3Dlized, autour de quatre grands objectifs :
1. réaliser quatre versions du logiciel plateforme pour s'adapter aux différents usages,
2. proposer une collection d’instruments virtuels sonores et visuels,
3. améliorer la représentation graphique des instruments virtuels,
4. pratiquer, échanger, et conserver un répertoire sur la Méta-Librairie.
Ce projet interroge plusieurs usages nouveaux comme la pratique en orchestre d'instruments virtuels, l'échange et la transmission de partitions interactives pour ces orchestres, l'apport du relief pour la musique visuelle. Il évoque aussi les développements d'instruments virtuels comme les instruments de synthèse vocale du LIMSI et les instruments par modèles physiques, modèles topologiques et modèles statistiques de l'équipe Lutheries acoustique musique (LAM).
Cet article est aussi une invitation à utiliser la plateforme Meta-Mallette [12] via son SDK (libre) et le site d'echanges Meta-Librairie
Digitartic : synthèse gestuelle de syllabes chantées
Get PDFNous présentons le Digitartic, un instrument musical de synthèse vocale permettant le contrôle gestuel de l’articulation Voyelle-Consonne-Voyelle. Digitartic est situé dans la continuité de l’instrument de voyelles chantées synthétiques Cantor Digitalis, utilisant la synthèse par formants et développé dans l’environnement Max/MSP. Les analogies entre geste percussif et geste de constriction lors de la production de consonnes sont développées. Digitartic permet le contrôle temps réel de l’instant articulatoire, de l’évolution temporelle des formants, des bruits d’occlusion et de l’aspiration. Le lieu d’articulation peut varier continument par interpolation des lieux d’articulation des consonnes de référence. On discute du type de modèle de contrôle à utiliser suivant l’application recherchée, en s’appuyant sur des analogies gestuelles et des contraintes de temps réel. Un modèle de synthèse de l’articulation est présenté, utilisant les possibilités de contrôle d’une tablette graphique. Des exemples de syllabes synthétiques démontrent que le concept de contrôle gestuel de l’articulation, par analogie à la percussion, est valide
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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No full textRecording of Todor Todoroff's Les familiers du labyrinthe. This work emphasizes the creation of virtual sound architectures which then reveals the existence of an invisible world. Music and sound decoration are integrated here using all the resources of electroacoustics. The work has been separated into 5 unnamed movements
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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No full textRecording of Todor Todoroff's Obsession. The sound materials of the piece comes mainly from two sources whose multiple transformations follow one another or are edited and mixed in such a way that contrasts and coincidences. The sound sources are recordings of flowing water and wave sounds used in different ways and texts which are fragmented, transformed, assembled and spatialized. This evolution, ranges from micro montage to the complete sentences and goes through a succession of words
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