
Leandro L. CostalongaFederal University of Espírito Santo | UFES · Departamento de Computação e Eletrônica
Leandro L. Costalonga
PhD.
About
47
Publications
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Introduction
Leandro L. Costalonga currently works at the Departamento de Computação e Eletrônica, Universidade Federal do Espírito Santo. Leandro does research in Computer Music, Artificial Intelligence, Computing in Social science, Arts and Humanities and Human-computer Interaction.
Additional affiliations
April 2013 - present
Publications
Publications (47)
Este artigo descreve dois ambientes musicais onipresentes (ubimus) que promovem a criação de conhecimento e o compartilhamento de recursos. Os designs propostos abordam o apoio à produção de conhecimento, tendo em conta a natureza incorporada da actividade musical e os aspectos comunitários de compromissos mútuos significativos. O primeiro caso tra...
Descrevemos dois ambientes musicais ubíquos (ubimus) que promovem a criação e o compartilhamento de conhecimentos e de recursos criativos. Tendo em vista que a atividade musical é situada e corporizada e considerando os aspectos comunitários dos engajamentos mútuos, o design proposto foca no apoio à produção de conhecimento. O primeiro caso discute...
Free improvisation is a musical genre that defies traditional forms of music-making, defining itself by its absences. This creates a particular environment that imposes challenges to those trying to learn it and to educators inspired to teach it. Generally, ensemble practice is considered to be the most suitable and widely accepted method for pract...
Assistive technology, especially gaze-controlled, can promote accessibility, health care, well-being and inclusion for impaired people, including musical activities that can be supported by interfaces controlled using eye tracking. Also, the Internet growth has allowed access to a huge digital music database, which can contribute to a new form of m...
The world is undergoing a switch to more sustainable energy sources to curb CO2 emissions and haul climate change. One sector expected to see rapid growth in energy consumption is the cooling sector due to population growth and climate change. A sustainable solution for cooling needs in coastal areas that are not often addressed is seawater air-con...
The world is undergoing a switch to more sustainable sources of energy to curb CO 2 emissions and haul climate change. One sector that is expected to see rapid growth in energy consumption is the cooling sector, due to population growth in developing countries, and climate change. A sustainable solution for cooling needs in coastal areas that are n...
We tackle the philosophical implications of post-2020 music practices. To situate our discussion, we address pending issues in current definitions of music-making. Our analysis indicates that post-2020 definitions of music should feature sonic information and events, framed through social interactions and through the material grounding of the music...
The NESCoM is a multidisciplinary research centre formed by musicians, engineers and computer scientists. This paper reports the ongoing projects and developments over the last two years, thus it is an update over the research report published in 2019. As a Brazilian research group, with solid international collaboration, we have opted to intercala...
Recent works recognize musicality is based on and constrained by our cognitive and biological system. Taking in account a concept from cognitive science - cognitive offloading - as a principle for technology-supported musical activities, in this paper we discuss some principles (guidelines) to be taken into account when designing, developing and ev...
In the last few decades, robots have fostered unique possibilities for musical performance and composition, allowing novel interactions with musicians and memorable experiences for the audience. Robotic musicians can be built in many shapes and have diverse functionalities, making robot musicianship a fertile research field. However, building physi...
In the 1950s, musicians started to explore computer use for musical activities, often unrelated to real-time processing. However, technological advances have made the computer more present in musical performances, creating research areas such as ubiquitous music (ubimus), which aims to promote tools that support creative musical activities, and Int...
All humans share a predisposition for music even those who consider
themselves to be “unmusical”. Until recently, most scholars were wary of the
notion that music cognition could have a biological basis, and this fact reflects
on the limited support HCI offers to the design of ubimus technology. In this
paper, we present a preliminary discussion on...
The NESCoM is a multidisciplinary research center formed by musicians, engineers and computer scientists. The main research interest lies with sonology, audiotacticle musical analysis, ubiquitous music, interactive multimedia installations, and the design of computer music technology in general. Overall, the common ground for the NESCoM projects li...
An interaction design that lean towards musical traits based on and constrained by our cognitive and biological system could, not only provide a better user experience, but also minimize collateral effects of excessive use of such technology to make music. This paper presents and discuss innate abilities involved in musical activities that - in the...
Computer-generated musical performances are often criticised for being unable to match the expressivity found in performances by humans. In this paper, we discuss the role of errors when modelling expressive music performance, which concerns the physical manipulation of the instrument by the performer. In addition, a study on the motor and biomecha...
O presente projeto estuda a efetividade da modelagem e da tablatura no ensino do violão mediado por tecnologia, utilizando procedimentos experimentais com o objetivo de subsidiar a eleição, o design e o desenvolvimento de ambientes musicais educativos. Dentro deste contexto, 41 participantes realizaram exercícios musicais através de três meios digi...
O último censo demográfico do Brasil relata que cerca de 13,1 milhões de pessoas se declaram com alguma deficiência do tipo motora. O avanço tecnológico tem contribuído na promoção da acessibilidade e inclusão por meio das técnicas de tecnologia assistiva. Este trabalho apresenta uma interface computacional para controle musical, porém com foco em...
Synchronization is about providing coherent orchestration of events or resources involved in a multimedia application. In a synchronized application, the user has the notion that his device's content is directly connected with others. In this paper we discuss the existing synchronization techniques, their advantages and disadvantages, and the curre...
The research field of electronics applied to music technology goes beyond the improvement of audio quality. Robotics have been largely used in educational projects but rarely in the computer musical context. This paper presents a robotic device capable of performing on an acoustic guitar. The project was developed as a part of an extension project...
Ubimus is a research field that merges Ubicomp and music and studies the influence of ubiquitous devices and applications in Music. This field has been explored by musicians and social scientists around the world helped by a countless number of computer scientists. Nevertheless, it is not easy to a novice computer scientist understand Ubimus concep...
Artefatos Culturais Automatizados por Computador (CACA) e/ou Instalações Multimídia Interativas são objetos oriundos do choque entre de visões de mundo muitos diferentes. As Engenharias focam em funcionalidade, otimização, e desempenho; Já as Artes, tem seu foco na estética, diálogo, e bem estar. O projeto Campus Vivo promove o encontro de indivídu...
In this paper we propose aesthetic heuristics as an area of study within ubiquitous music research. Initially we discuss the motivations for narrowing the focus of the experimental variables involved in creativity-centred design studies. Then we place aesthetic heuristics within the current efforts toward designs for creativity support, highlightin...
Two recent approaches to interaction design have good potential to address creative practice in everyday settings: interaction aesthetics and ubiquitous music. We discuss the theoretical and methodological issues raised by both perspectives and highlight the similarities and differences among the two approaches. Through the analysis of a series of...
Taking as a point of departure recent theoretical advances in Interaction Design and Human-Computer Interaction (Löwgren 2009), we discuss a body of knowledge gathered in Ubiquitous Music practices (Keller et al. 2011a) during the last six years. New concepts and methods have been proposed to describe aspects of the ideation and materialization of...
Capturing and creating models of human subjects is an ongoing effort in computer graphics. In this paper, we present a framework to capture, model, simplify, and stylize an human subject. We use a consumer 3D depth camera that captures the appearance, shape, and pose of the recorded person. We then fit this data with a parametric human model that i...
Music languages are on the cutting edge of all kinds of work in computer music (Loy and Abbott, 1985). A satisfactory realization of an encoded work can be reconstituted through the interpretive practice of trained performers, but the knowledge that enables human performers to interpret music notation is extremely difficult to represent in a formal...
The goal of this paper is to describe a systemaided performance and composition tool that aims to expand guitarist capacities
by providing innovative ways in which the user can interact with the system. In order to achieve that, we decided to use an
agentbased approach, independently modeling the active elements involved in a guitar performance as...
Electronic means for generating music are often criticized for their "non-human" feeling. Models of expressive music performance have been used to alleviate this limitation by recreating human patterns found in music performance. These patterns are the outcome of both cognitive and biomechanical constrains. This paper focuses on the latter. We are...
Music languages are on the cutting edge of all kinds of work in computer music [Loy and Abbott, 1985]. A satisfactory realization of an encoded work can be reconstituted through the interpretive practice of trained performers, but the knowledge that enables human performers to interpret music notation is extremely difficult to represent in a formal...
The aim of this research is to add intelligence to the interface between systems for computer‐aided composition and synthesizers. In this paper we introduce a system that is able to play guitar music on a synthesized guitar idiomatically. There are a great number of sound synthesis techniques and computer‐aided composition systems available. Howeve...
We are developing systems which play music on synthesized plucked strings instruments idiomatically. The present paper introduces a system focusing on the acoustic guitar. The system is programmed with rules embodying the architecture of the guitar and the respective biomechanical constraints of a performer. These rules define the types of musical...
Today, there are many programming languages and libraries available for the development of computer music applications. This paper presents a comparison o f Java technologies for computer music, a s a qu ick reference for interested developers. The main available musical li braries are listed, described and compared. Resumo. Atualmente ex istem dez...
This poster presents CODES - Cooperative Sound Design, a web-based environment for cooperative music prototyping, that aims to provide users (musicians or non-specialists in music) with the possibility of creating musical examples (prototypes) that can be tested, modified and constantly played, both by their initial creator and by their partners, w...
This paper aims to present some considerations about computer aided musical education, to point out topics which we believe are necessary to such practice and also some characteristics of systems that agree with those topics. It also discusses how to use computer music to promote digital inclusion, by referencing experiences of research in this fie...
A idéia deste minicurso é propiciar aos alunos conhecer alguns conceitos introdutórios de Computação Musical, uma área eminentemente interdisciplinar e que engloba problemas computacionais interessantes e relevantes (por exemplo, de representação de conhecimento musical, de controle a tempo-real de dispositivos, de interação com usuários possivelme...
The present paper describes and presents the outcomes of the "Polvo Violonista" ("Guitar Playing Octopus") Multi-agent System. The system aims at generating new sonorities by overlapping rhythmic patterns simultaneously defined by different composers. Since this system focuses on the right hand's role in non-classical guitar performance, it will al...
Some factors, such as the musical style and musicians' language, contribute to the non-standardization of the chords. The concept of adaptable chords was elaborated in order to fulfill the need for systems adaptable to different profiles. The user can modify or substitute the notation symbols. This paper presents a formalization of a grammar to val...
This work describes, from a user perspective, a multi-agent system able to simulate a guitar player. In this system the elements involved in a guitar musical performance were modeled as artificial agents. Harmony and rhythm musical elements are separated and defined independently, respectively as Left-Hand and Right-Hand agents. We also summarize a...
This paper presents CODES -COoperative Music Prototype DESign, a Web-based environment for cooperative music prototyping. CODES aims to allow users (either interested lay people or experienced musicians) to make sound experiments and interact each other in order to create and refine simple musical pieces. Music Prototyping concepts are introduced f...
This article proposes, essentially, to validate Astrha, an Internet multimedia interactive dynamic graphic environment based on hyper-animations and automata theory as media for implementing an guitar accords dictionary. The initial non deterministic representation of the dictionary is transformed to an equivalent deterministic form and multimedia...