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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

VORPAL: a middleware for real-time soundtracks in digital games / VORPAL: um middleware de trilhas sonoras em tempo real para jogos digitais

Mizutani, Wilson Kazuo 24 January 2017 (has links)
Although soundtracks play an essential role in the experience delivered by digital games, there are a number of design restrictions it suffers from due to technology limitations. This is specially true for real-time effects, a natural demand in the interactive media of games. Developers may either implement their own solutions each time, rely on proprietary software, or neglect the soundtrack altogether. Besides, even the best commercial tools support only sample-based audio, which is one of the main causes for the aforementioned design restrictions. Thus, this thesis proposes VORPAL, a free software game audio middleware implementation that focuses on procedural audio instead while maintaining the possibility of sample-based audio as a more accessible and adequate tool for composing real-time soundtracks for digital games. The middleware, inspired by its commercial predecessors, is divided in two main pieces of software: an audio engine and a soundtrack creation kit. The audio engine comprises a native C++ programming library, which games and game engines can be linked to to play and control in real-time soundtrack pieces created using the soundtrack creation kit, which consists of building blocks provided as Pure Data abstractions. We have interviewed and partnered with professional sound designers to validate our technology, and came to develop a proof of concept game called Sound Wanderer, which showcases the possibilities and limitations of the VORPAL middleware. / Muito embora trilhas sonoras desempenhem um papel essencial na experiência criada por jogos digitais, elas sofrem de diversas restrições de projeto causadas por limitações tecnológicas. Isso afeta principalmente efeitos em tempo real, que são uma demanda natural na mídia interativa dos jogos. Desenvolvedores precisam optar entre implementar uma solução própria caso a caso, investir em software proprietário, ou simplesmente negligenciar a trilha sonora por falta de opção melhor. Além disso, mesmo as melhores ferramentas comerciais trabalham apenas com áudio baseado em amostras, o que é uma das principais causas das ditas restrições de projeto. Portanto, esta dissertação propõe VORPAL, um middleware livre para áudio em jogos que foca em áudio procedural mas mantém compatibilidade com áudio baseado em amostras como uma ferramenta mais acessível e adequada para a composição de trilhas sonoras em tempo real para jogos digitais. O middleware, inspirado em seus antecessores comerciais, é dividido em duas principais componentes de software: um motor de áudio e um kit de criação de trilhas sonoras. O primeiro é constituído por uma biblioteca de programação nativa em C++, com a qual jogos e motores de jogos podem se ligar para reproduzir e controlar, em tempo real, peças da trilha sonora criadas usando a outro componente, que é um kit de blocos de construção providos como abstrações de Pure Data. Projetistas de som profissionais foram entrevistados e depois trabalharam em parceria com os autores para validar a tecnologia proposta, o que levou ao desenvolvimento de um jogo de prova conceitual chamado Sound Wanderer, que demonstra as possibilidades e limitações do middleware VORPAL.
12

VORPAL: a middleware for real-time soundtracks in digital games / VORPAL: um middleware de trilhas sonoras em tempo real para jogos digitais

Wilson Kazuo Mizutani 24 January 2017 (has links)
Although soundtracks play an essential role in the experience delivered by digital games, there are a number of design restrictions it suffers from due to technology limitations. This is specially true for real-time effects, a natural demand in the interactive media of games. Developers may either implement their own solutions each time, rely on proprietary software, or neglect the soundtrack altogether. Besides, even the best commercial tools support only sample-based audio, which is one of the main causes for the aforementioned design restrictions. Thus, this thesis proposes VORPAL, a free software game audio middleware implementation that focuses on procedural audio instead while maintaining the possibility of sample-based audio as a more accessible and adequate tool for composing real-time soundtracks for digital games. The middleware, inspired by its commercial predecessors, is divided in two main pieces of software: an audio engine and a soundtrack creation kit. The audio engine comprises a native C++ programming library, which games and game engines can be linked to to play and control in real-time soundtrack pieces created using the soundtrack creation kit, which consists of building blocks provided as Pure Data abstractions. We have interviewed and partnered with professional sound designers to validate our technology, and came to develop a proof of concept game called Sound Wanderer, which showcases the possibilities and limitations of the VORPAL middleware. / Muito embora trilhas sonoras desempenhem um papel essencial na experiência criada por jogos digitais, elas sofrem de diversas restrições de projeto causadas por limitações tecnológicas. Isso afeta principalmente efeitos em tempo real, que são uma demanda natural na mídia interativa dos jogos. Desenvolvedores precisam optar entre implementar uma solução própria caso a caso, investir em software proprietário, ou simplesmente negligenciar a trilha sonora por falta de opção melhor. Além disso, mesmo as melhores ferramentas comerciais trabalham apenas com áudio baseado em amostras, o que é uma das principais causas das ditas restrições de projeto. Portanto, esta dissertação propõe VORPAL, um middleware livre para áudio em jogos que foca em áudio procedural mas mantém compatibilidade com áudio baseado em amostras como uma ferramenta mais acessível e adequada para a composição de trilhas sonoras em tempo real para jogos digitais. O middleware, inspirado em seus antecessores comerciais, é dividido em duas principais componentes de software: um motor de áudio e um kit de criação de trilhas sonoras. O primeiro é constituído por uma biblioteca de programação nativa em C++, com a qual jogos e motores de jogos podem se ligar para reproduzir e controlar, em tempo real, peças da trilha sonora criadas usando a outro componente, que é um kit de blocos de construção providos como abstrações de Pure Data. Projetistas de som profissionais foram entrevistados e depois trabalharam em parceria com os autores para validar a tecnologia proposta, o que levou ao desenvolvimento de um jogo de prova conceitual chamado Sound Wanderer, que demonstra as possibilidades e limitações do middleware VORPAL.
13

Adaptive Game Music: The Evolution and Future of Dynamic Music Systems in Video Games

Young, David M. 19 June 2012 (has links)
No description available.
14

Techniques for automated and interactive note sequence morphing of mainstream electronic music

Wooller, René William January 2007 (has links)
Note sequence morphing is the combination of two note sequences to create a ‘hybrid transition’, or ‘morph’. The morph is a ‘hybrid’ in the sense that it exhibits properties of both sequences. The morph is also a ‘transition’, in that it can segue between them. An automated and interactive approach allows manipulation in realtime by users who may control the relative influence of source or target and the transition length. The techniques that were developed through this research were designed particularly for popular genres of predominantly instrumental electronic music which I will refer to collectively as Mainstream Electronic Music (MEM). The research has potential for application within contexts such as computer games, multimedia, live electronic music, interactive installations and accessible music or “music therapy”. Musical themes in computer games and multimedia can morph adaptively in response to parameters in realtime. Morphing can be used by electronic music producers as an alternative to mixing in live performance. Interactive installations and accessible music devices can utilise morphing algorithms to enable expressive control over the music through simple interface components. I have developed a software application called LEMorpheus which consists of software infrastructure for morphing and three alternative note sequence morphing algorithms: parametric morphing, probabilistic morphing and evolutionary morphing. Parametric morphing involves converting the source and target into continuous envelopes, interpolation, and converting the interpolated envelopes back into note sequences. Probabilistic morphing involves converting the source and target into probability matrices and seeding them on recent output to generate the next note. Evolutionary morphing involves iteratively mutating the source into multiple possible candidates and selecting those which are judged as more similar to the target, until the target is reached. I formally evaluated the probabilistic morphing algorithm by extracting qualitative feedback from participants in a live electronic music situation, benchmarked against a live, professional DJ. The probabilistic algorithm was competitive, being favoured particularly for long morphs. The evolutionary morphing algorithm was formally evaluated using an online questionnaire, benchmarked against a human composer/producer. For particular samples, the morphing algorithm was competitive and occasionally seen as innovative; however, the morphs created by the human composer typically received more positive feedback, due to coherent, large scale structural changes, as opposed to the forced continuity of the morphing software.

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