کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
288906 509651 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A real-time sound field renderer based on digital Huygens' model
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
A real-time sound field renderer based on digital Huygens' model
چکیده انگلیسی

Modeling acoustical behavior in a room is complicated and computationally intense. Although many methods have been proposed for computer simulation and computers have become faster and faster, the procedure is deeply time-consuming as sound space increases. With the development of semiconductor technology, an alternative solution is to simulate and rebuild the sound field distribution using hardware. Compared with other methods, the method based on digital Huygens' model (DHM) is simple and easily implemented by hardware. In this paper, two schemes of DHM are derived to analyze sound propagation in a two-dimensional space, and are implemented by field programmable gate array (FPGA). In a two-dimensional space of size 2 m×2 m, surrounded by rigid walls, the hardware simulation results of both schemes agree well with the software simulation result, and the calculation errors are relatively small. Compared with the software-based FDTD, original scheme, and updated scheme, a hardware system with 1024 nodes implemented by a Xilinx FPGA chip XC5VLX330T-FF1738 speeds up 7.1, 5.5, and 3.6 times, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 330, Issue 17, 15 August 2011, Pages 4302–4312
نویسندگان
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