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Norilo, V. and Verstraelen, M.J.W. and Valimaki, V. (2015) Implementing a low-latency parallel graphic equalizer with heterogeneous computing. In: Proceedings of the 18th International Conference on Digital Audio Effects, DAFx 2015, 30 Nov - 3 Dec 2015, Trondheim, Norway. pp. 351-357. Norwegian University of Science and Technology, Department of Music and Department of Electronics and Telecommunications. ISSN 2413-6700
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This paper describes the implementation of a recently introduced parallel graphic equalizer (PGE) in a heterogeneous way. The control and audio signal processing parts of the PGE are distributed to a PC and to a signal processor, of WaveCore architecture, respectively. This arrangement is particularly suited to the algorithm in question, benefiting from the low-latency characteristics of the audio signal processor as well as general purpose computing power for the more demanding filter coefficient computation. The design is achieved cleanly in a high-level language called Kronos, which we have adapted for the purposes of heterogeneous code generation from a uniform program source.
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