Riccardo Simionato

• Simionato, Riccardo; Liski, Juho; Välimäki, Vesa & Avanzini, Federico (2018). A Virtual Tube Delay Effect. Proceedings of the International Conference on Digital Audio Effects. ISSN 2413-6700. Vis sammendrag

  A virtual tube delay effect based on the real-time simulation of acoustic wave propagation in a garden hose is presented. The paper describes the acoustic measurements conducted and the analysis of the sound propagation in long narrow tubes. The obtained impulse responses are used to design delay lines and digital fil-ters, which simulate the propagation delay, losses, and reflections from the end of the tube which may be open, closed, or acoustically attenuated. A study on the reflection caused by a finite-length tube is described. The resulting system consists of a digital waveguide model and produces delay effects having a realistic low-pass filtering. A stereo delay effect plugin in PURE DATA has been implemented and it is described here.

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