JP4363528B2 - 音場シミュレーションシステム - Google Patents
音場シミュレーションシステム Download PDFInfo
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- JP4363528B2 JP4363528B2 JP2005022745A JP2005022745A JP4363528B2 JP 4363528 B2 JP4363528 B2 JP 4363528B2 JP 2005022745 A JP2005022745 A JP 2005022745A JP 2005022745 A JP2005022745 A JP 2005022745A JP 4363528 B2 JP4363528 B2 JP 4363528B2
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B …陰部
1 …システム本体
2 …入力手段
3 …出力手段
10 …CPU
11 …記憶領域
12 …反射率データベース
13 …経路演算手段
14 …仮音源設定手段
15 …音圧レベル演算手段
16 …調整演算手段
16a …方式選択テーブル
20 …間取り
20a …壁
20b …遮音端部
21 …音源
22 …受音点
22a …仮音源
23 …音線
24 …音線
Claims (4)
- 建物情報および音源情報を入力する入力手段と、
音線追跡法および虚像法を用いて音線の反射による経路を演算する経路演算手段と、
前記音線の経路に沿って音圧レベルを演算する音圧レベル演算手段と、
所定の観測範囲を設定し、音線追跡法および虚像法のそれぞれの経路演算において前記観測範囲を通過する音線の密度に基づいて、いずれかの方法による演算結果を選択し、または両方の演算結果を合わせることにより、最終的な音圧を演算する調整演算手段とを備え、
前記経路演算手段は、前記虚像法における受音点を仮音源の位置としてさらに音線追跡法を用いて経路を演算し、
前記音圧レベル演算手段は、前記受音点について虚像法において算出された音圧を仮音源の音圧として、さらに音線追跡法において音圧レベルの演算を行い、
前記調整演算手段は、音線追跡法および虚像法のそれぞれの音線の密度に対し、いずれかの方法による演算結果を選択するか、または両方の演算結果を合わせるかについての設定を保持した方式選択テーブルを備えている
ことを特徴とする音場シミュレーションシステム。 - 前記建物情報において、音が衝突する遮音壁のうち音が回折しうる端部を遮音端部とすると、
前記仮音源とする受音点は、多数ある受音点のうち、虚像法において前記受音点と音源とを結ぶ音線が前記遮音端部に最も近接するものであることを特徴とする請求項1記載の音場シミュレーションシステム。 - 前記仮音源とする受音点は、音源から発せられた音線が反射せずに到達する受音点であることを特徴とする請求項1記載の音場シミュレーションシステム。
- 前記経路演算手段により、前記仮音源から音線追跡法を用いて演算する音線の経路は、音源から発せられた音線が反射せずに到達する領域を除外することを特徴とする請求項1記載の音場シミュレーションシステム。
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JP2005022745A JP4363528B2 (ja) | 2005-01-31 | 2005-01-31 | 音場シミュレーションシステム |
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JP2005022745A JP4363528B2 (ja) | 2005-01-31 | 2005-01-31 | 音場シミュレーションシステム |
Publications (2)
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JP2006208273A JP2006208273A (ja) | 2006-08-10 |
JP4363528B2 true JP4363528B2 (ja) | 2009-11-11 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103712684A (zh) * | 2013-12-25 | 2014-04-09 | 广西科技大学 | 声场重建方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100442030C (zh) * | 2006-10-27 | 2008-12-10 | 合肥工业大学 | 一种声场分离方法 |
CN102589676B (zh) * | 2011-12-21 | 2015-08-12 | 中山大学 | 一种基于室内空间剖分的声线追踪方法 |
JP7134109B2 (ja) * | 2019-01-30 | 2022-09-09 | 株式会社Ihi | 音波伝搬シミュレーションシステム、および、音波伝搬シミュレーション方法 |
CN112036024A (zh) * | 2020-08-26 | 2020-12-04 | 孙大钊 | 一种建筑声学处理方法、装置、电子设备及存储介质 |
CN116244078B (zh) * | 2023-02-27 | 2023-12-01 | 青岛中海潮科技有限公司 | 基于多线程和simd的水下声场快速计算方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103712684A (zh) * | 2013-12-25 | 2014-04-09 | 广西科技大学 | 声场重建方法 |
CN103712684B (zh) * | 2013-12-25 | 2016-01-20 | 广西科技大学 | 声场重建方法 |
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