2002
In their 2002 paper, "Public Sound Objects: A Shared Musical Space on the Web," presented at the WEDELMUSIC 2002 conference in Darmstadt, Germany, Álvaro Barbosa and Martin Kaltenbrunner introduced the Public Sound Objects (PSO) system. This project provided the theoretical and technical framework for a "shared sound environment" that directly influenced the development of Max Neuhaus's Auracle (2004). Connections to Max Neuhaus and Auracle: Shared Sound Environments: Barbosa's PSO research defined a new class of web applications in which the Internet is not just a transmission channel, but a shared public space for real-time collective performance. Architectural Foundation: The authors of the Auracle project documentation explicitly state that their work was influenced by Barbosa's PSO examples. While PSOs used a graphical interface, Auracle developed these concepts into a voice-controlled instrument. The project fused Neuhaus's "virtual acoustic spaces" of the 1960s with modern networked music technology, treating the Internet as a single interactive acoustic site. Key features of Public Sound Objects (2002): Decoupled Interface Architecture: The system separated the sound synthesis engine from the user interface, allowing users to interact with the instrument via a standard web browser from anywhere. To address the technical challenges discussed at the Darmstadt conference, the PSO system employed dynamic timing adaptation. It measured network latency in real time and adjusted the musical timing so that all participants heard a synchronized performance.