This paper address the issues involved in physical modelling synthesis using digital waveguides and its implementation in the hardware. Physical modelling of a one-dimensional musical resonator such as a string can be derived using digital waveguide modelling. The digital waveguide model itself comprises of pair of delay lines. This research models the string digital waveguide using an IIR filter to model the loss parameter and an all-pass filter to handle the fractional number of delays. This paper covers the implementation of digital waveguide string model in FPGA board. Applying a scaling and saturation methods, the design approach ensure that the bit overflow would not occur. Applied to the Cyclone II EP2C35F672C6 FPGA on Altera's DE2 board, it uses a total of 1243 registers which are 4% of the total register found on the FPGA.
展开▼
机译：本文解决了使用数字波导进行物理建模综合的问题及其在硬件中的实现。可以使用数字波导建模来推导一维音乐谐振器（例如琴弦）的物理模型。数字波导模型本身包括一对延迟线。这项研究使用IIR滤波器对损耗参数进行建模，并使用全通滤波器来处理分数的延迟，从而对串数字波导进行建模。本文介绍了在FPGA板上实现数字波导串模型的方法。设计方法采用缩放和饱和方法，可确保不会发生位溢出。它应用于Altera的DE2板上的Cyclone II EP2C35F672C6 FPGA，总共使用了1243个寄存器，占FPGA上总寄存器的4％。
展开▼
