High accuracy and high speed sound field rendering for the silicon concert hall

• Project/Area Number: 22560233
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Doshisha University
• Principal Investigator: TSUCHIYA Takao 同志社大学, 理工学部, 教授 (20217334)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
• Keywords: シリコンコンサートホール / 音響レンダリング / CE-FDTD法 / GPU / 数値分散 / WE-FDTD法 / DHM法 / FDTD法 / FPGA

Research Abstract

In this study, high accuracy and high speed numerical schemes for the sound field rendering of the silicon concert hall are examined. The compact explicit finite difference time domain (CE-FDTD) method is applied to large-scale 3D sound field analysis to reduce computer resources. The CE-FDTD method is implemented on a GPU (Graphics Processing Unit) cluster system. The calculation performance is evaluated for the 3D sound wave propagation. The most accurate scheme is the interpolated wideband (IWB) scheme in which the cut-off frequency is in agreement with Nyquist frequency. The rendering results are then reproduced by the 24ch loudspeaker array system. It is confirmed that the high quality and high definition auralization can be realized.

Research Products

• [Journal Article] Three-dimensional sound field analysis using compact explicit- finite difference time domain method with graphics processing unit cluster system (2013)
  • Author(s): T. Ishii, T. Tsuchiya and K. Okubo
  • Journal Title: J. Appl. Phys Volume: 掲載予定
  • NAID: 210000142489
  • Peer Reviewed
• [Journal Article] Perfectly Matched Layer for the Wave Equation Finite Difference Time Domain Method (2012)
  • Author(s): Y. Miyazaki and T. Tsuchiya
  • Journal Title: J. Appl. Phys Volume: Vol.51
  • NAID: 210000140907
  • Peer Reviewed
• [Journal Article] Perfectly Matched Layer for the Wave Equation Finite Difference Time Domain Method (2012)
  • Author(s): Yutaka Miyazaki
  • Journal Title: Japanese Journal of Applied Physics Volume: 51 Issue: 7S Pages: 07GB02-07GB02
  • DOI: 10.1143/jjap.51.07gb02
  • Peer Reviewed
• [Presentation] WE-FDTD法における密度変化の取り扱いについて (2012)
  • Author(s): 宮嵜友孝, 土屋隆生, 大久保寛
  • Organizer: 日本音響学会2012年春季研究発表会
  • Place of Presentation: 神奈川大学(横浜)
  • Year and Date: 2012-03-14
• [Presentation] コンパクトで陽的な高精度FDTD法について (2012)
  • Author(s): 土屋隆生,石井琢人,大久保 寛
  • Organizer: 日本音響学会2012年秋季研究発表会
  • Place of Presentation: 信州大学
• [Presentation] コンパクトで陽的な高精度FDTD法について (2012)
  • Author(s): 土屋隆生
  • Organizer: 日本音響学会2012年度秋季研究発表会
  • Place of Presentation: 信州大学
• [Presentation] WE-FDTD法におけるPML境界について (2011)
  • Author(s): 宮嵜友孝, 土屋隆生
  • Organizer: 日本音響学会2011年秋季研究発表会
  • Place of Presentation: 島根大学(島根)
  • Year and Date: 2011-09-20
• [Presentation] WE-FDTD法におけるPML境界について (2011)
  • Author(s): 宮嵜友孝, 土屋隆生
  • Organizer: 日本音響学会2011年秋季研究発表会
  • Place of Presentation: 島根大学
• [Presentation] A High Performance Numerical Simulation of Sound Field in Time Domain Using a GPU Cluster System (2011)
  • Author(s): T. Tsuchiya, A. Morikochi, and T. Ishii
  • Organizer: Proc. Forum Acusticum 2011
  • Place of Presentation: Aalborg, Denmark.