Background Interactive multimedia art installations in public spaces are evolving with the integration of real-time (RT) digital control and visualization technologies, enabling dynamic and immersive user experiences. These installations transform urban environments into responsive, participatory spaces through audiovisual interactivity. However, existing methods often face limitations such as inflexible architectures, latency in data processing, and challenges in real-time synchronizing multimodal inputs and outputs. These issues hinder scalability and reduce the creative possibilities of interactive systems in public settings. Methods This study proposes a Node-based Real-Time Multimedia Architecture using Max/MSP and (TD) Touch Designer (MAX/MSP-TD) to address these challenges. The framework leverages the strengths of visual programming environments, allowing seamless integration of real-time sensor data, audio analysis, and generative visuals through modular and reusable components. The proposed method is applied in an urban installation where sound and movement data from the public are captured and translated into interactive light and sound projections in real time. This encourages public engagement and offers a platform for creative expression within the built environment. Results Findings show that the MAX/MSP-TD framework significantly improves system responsiveness, flexibility, and scalability while enhancing user interaction and artistic control in public multimedia installations.
Liu et al. (Fri,) studied this question.