Crafting New Interfaces for Musical Expression

Abstract: This thesis collects and contextualizes several projects involving artistically directed prototyping where new artifacts have been developed, in multi-disciplinary groups of practitioners, for use in performance contexts. These projects and their resulting publications have been team efforts, and therefore all papers have more than one author. In the introduction, a complementary perspective to that of the publications is offered, engaging with the characteristics of the digital innards of these artifacts and their digital material qualities. The stance that software source code is a design material is argued, and the notion of the crafting coder is used to view processes that use code as material for artistic creation. Code is also prominently featured in the introductory chapter with examples of some of the central components of the sound processing techniques that have been successfully used in the projects described in this thesis.The artifacts that are described in the thesis are: The Throat, an instrument for augmenting the singing voice using gestural control in real-time, The Vocal Chorder, a string based instrument using full-body interaction that also allows for audience participation through an installation mode, The Charged Room, a video tracking installation that lets users manipulate sound by moving across a stage, and Nebula, a garment that senses the users movements and responds with sound. These artifacts have been evaluated in the context they are designed for, and not only tested in laboratory settings, to make sure that the knowledge produced is valid. Several performances and peda-gogical courses have been used as empirical foundation for the claims of empowerment, expressivity, and performance qualities ascribed to the developed artifacts.