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  • HASGS: Hybrid augmented system of Gestural Symbiosis Generating Visual Information
    Publication . Portovedo Marques, Henrique; Ferreira-Lopes, Paulo
    This paper discusses how an augmented instrument, HASGS in the context of interactive electronic music, motivates the generation of different graphical user interfaces taking in consideration the repertoire being composed for it. New composition aesthetics are deeply influenced by electronic materials and sonic repositories at the same time as new mediums are currently seen as possible extensions of instrumental practice. These mediums are available for creative purposes during composition and performative processes. While the aesthetics of acoustic and electronic sounds are creating mutual influences, composers and sound designers are developing new languages, new gestural attitudes, new extended techniques, new notation methods, new performative paradigms including the creation of graphical interfaces for visual feedback. This augmented system for saxophone was motivated by the need to perform pieces with a common aesthetic that have been written using electronic environments. Those pieces shared the need for the control of external devices in order to be performed. The repertoire for saxophone and electronics is growing in a huge scale, from pieces using stomp boxes or control pedals for different triggering or fading, to pieces requiring the manipulation of knobs. These controllers, by their nature, devices that separate sound production (synthesis) and performer gesture (control), have subsequently generated an increased interest in the study of compositional mapping strategies for computer music. From our experience, we conclude that the graphical user interface (GUI) is fundamental for the understanding of the individuality of each piece, as well as to understand the relation between the augmentation system and the piece itself. If this project started with the idea of contributing to a new performative paradigm regarding the existing repertoire, new repertoire and improvisational performance situations led to the development of a hybrid system contributing to bio-feedback incorporation in the work of art, while creating new graphical user interfaces for visual feedback.
  • Composition models for augmented instruments and new interfaces: HASGS as case study
    Publication . Portovedo, Henrique; Lopes, Paulo Ferreira; Mendes, Ricardo
    This paper presents the concept of HASGS regarding the augmentation procedures applied to an acoustic instrument, at the same time that it is analyzed how composers applied technology prototyped to the composition of works. The development of HASGS has been driven by the compositional aspects of the original music created for this specific electronic augmented instrumental system. Instruments are characterized not only by their sound and acoustical properties but also by their performative interface and evolutionary repertoire. This last aspect has the potential to establish a practice among performers at the same time as creating the ideal of community contributing to the past, present and future of that instrument. Augmenting an acoustic instrument places some limitations on the designer ́s palette of feasible gestures because of those intrinsic performance gestures, and the existing mechanical interface, which have been developed over years, sometimes, centuries of acoustic practice. We conclude that acoustic instruments and digital technology, are able to influence and interact mutually creating Augmented Musical Performance environments based on the aesthetics of the repertoire being developed. This work is, as well, a resource of compositional methods to composers and programmers.
  • El Cuerpo y el Sonido en el desarrollo de las potencialidades interaccionales de niños y jóvenes con Necesidades Educativas Especiales
    Publication . Lamounier, Slavisa; Gomes, Ana Maria Paula Marques; Ferreira-Lopes, Paulo
    Este artículo propone los resultados de la intervención psicopedagógica, denominada "El Cuerpo y el Sonido: identificando interacciones y nuevos lenguajes". Surge en lo Postgrado en Educación Especial de la Escuela Superior de Educación de Paula Frassinetti (2017), donde investigamos de qué forma los recursos sonoros y sensoriales pueden estimular los procesos de interacción en los niños y jóvenes con Necesidades Educativas Especiales. Este trabajo constituye, incluso, una investigación preliminar para estudiar los ciclos clínicos interaccionales, integrados dentro del Doctorado en Ciencia y Tecnología de las Artes (Universidad Católica Portuguesa – Escola das Artes), donde estamos desarrollando, el prototipo instrumental Digital Sock como estímulo interactivo en intervenciones psicopedagógicas. El marco teórico aborda diferentes modelos psicopedagógicos envolviendo el cuerpo y el sonido, en los que nos basamos para desarrollar un modelo de actuación que vendrá a soportar esta fase de la investigación y el propio prototipo instrumental en desarrollo. Con una combinación metodológica de carácter cuantitativo y cualitativo, asienta esencialmente en la metodología de investigación-acción, donde se priorizó la observación participante como técnica de investigación. Los resultados de la intervención psicopedagógica provienen de niños y jóvenes con necesidades educativas especiales, indicando cuáles son los recursos sonoros y actividades psicomotoras que se configuran como facilitadoras para el desarrollo y expresión comunicacional. Se concluye de la importancia de estas actividades se desarrollaren en un programa a medio y largo plazo, donde la acción colectiva siempre será la más adecuada, proporcionando resultados internacionales más promisorios.
  • HASGS the repertoire as an approach to prototype augmentation
    Publication . Portovedo, Henrique; Lopes, Paulo Ferreira; Mendes, Ricardo
    This paper discusses the development of HASGS regarding augmentation procedures applied to an acoustic instrument. This development has been driven by the compositional aspects of the original music created in specific for this instrumental electronic augmented system. Instruments are characterized not only by their sound and acoustical properties but also by their performative interface and repertoire. This last aspect has the potential to establish a practice among performers at the same time as creating the ideal of community contributing to the past, present and future of that instrument. Augmenting an acoustic instrument places some limitations on the designer ́s palette of feasible gestures because of those intrinsic performance gestures, and the existing mechanical interface, which have been developed over years, sometimes, centuries of acoustic practice. We conclude that acoustic instruments and digital technology, are able to influence and interact mutually creating Augmented Performance environments based on the aesthetics and intentions of repertoire being developed.