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http://dx.doi.org/10.9708/jksci.2013.18.8.001

An Effective Parallel Implementation of Sound Synthesis of Guitar using GPU  

Kang, Sung-Mo (School of Electrical Engineering, University of Ulsan)
Kim, Jong-Myon (School of Electrical Engineering, University of Ulsan)
Publication Information
Journal of the Korea Society of Computer and Information / v.18, no.8, 2013 , pp. 1-8 More about this Journal
Abstract
This paper proposes an effective parallel implementation of a physical modeling synthesis of guitar on the GPU environment. We used appropriate filter coefficients and adjusted the length of delay line for each open string to generate 44,100 six-polyphonic guitar sounds (E2, A2, D3, G4, B3, E4) by using physical modeling synthesis. In addition, we analyzed the physical modeling synthesis algorithm and observed that we can exploit parallelism inherent in the length of delay line. Thus, we assigned CUDA cores as many as the length of delay line and effectively implemented the physical modeling synthesis using GPU to achieve the highest performance. Experimental results indicated that synthetic guitar sounds using GPU were very similar to the original sounds when we compared their spectra. In addition, GPU achieved 68x and 3x better performance than high-performance TI DSP and CPU, respectively. Furthermore, this paper implemented and evaluated the performance of multi-GPU systems for the physical modeling algorithm.
Keywords
Physical modeling synthesis; guitar sound; parallel implementation; graphics processing unit; OpenCL;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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