Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity

Yang J, Hermann T (2017)
In: Proceedings of 23rd International Conference on Auditory Display (ICAD-2017). 195-202.

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Conference Paper | English
Abstract
In this paper, we revisit, explore and extend the Particle Trajectory Sonification (PTS) model, which supports cluster analysis of high-dimensional data by probing a model space with virtual particles which are ‘gravitationally’ attracted to a mode of the dataset’s potential function. The particles’ kinetic energy progression of as function of time adds directly to a signal which constitutes the sonification. The exponential increase in computation power since its conception in 1999 enables now for the first time to investigate real-time interactivity in such complex interweaved dynamic sonification models. We speeded up the computation of the PTS model with (i) data optimization via vector quantization, and (ii) parallel computing via OpenCL. We investigated the performance of sonifying high-dimensional complex data under different approaches. The results show a substantial increase in speed when applying vector quantization and parallelism with CPU. GPU parallelism provided a substantial speedup for very large number of particles comparing to using CPU but did not show enough benefit for a low number of particles due to copying overhead. A hybrid OpenCL implementation is presented to maximize the benefits of both worlds.
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Yang J, Hermann T. Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity. In: Proceedings of 23rd International Conference on Auditory Display (ICAD-2017). 2017: 195-202.
Yang, J., & Hermann, T. (2017). Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity. Proceedings of 23rd International Conference on Auditory Display (ICAD-2017), 195-202. doi:10.21785/icad2017.022
Yang, J., and Hermann, T. (2017). “Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity” in Proceedings of 23rd International Conference on Auditory Display (ICAD-2017) 195-202.
Yang, J., & Hermann, T., 2017. Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity. In Proceedings of 23rd International Conference on Auditory Display (ICAD-2017). pp. 195-202.
J. Yang and T. Hermann, “Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity”, Proceedings of 23rd International Conference on Auditory Display (ICAD-2017), 2017, pp.195-202.
Yang, J., Hermann, T.: Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity. Proceedings of 23rd International Conference on Auditory Display (ICAD-2017). p. 195-202. (2017).
Yang, Jiajun, and Hermann, Thomas. “Parallel Computing of Particle Trajectory Sonification to Enable Real-Time Interactivity”. Proceedings of 23rd International Conference on Auditory Display (ICAD-2017). 2017. 195-202.
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