透過您的圖書館登入
IP:3.133.79.70
  • 會議論文

演藝廳之建築聲環境量測分析

The Analysis of Sound Quality in the Auditorium

摘要


可聽化廳堂模擬聲環境為整合複合音線法。頭部轉換函數及原音再現之最新數值技衛,複台音線法計算之脈波響應準確度為控制可聽化整合技術之第一步。本文藉由一階梯演講廳之聲環境預估與客觀聲場指標之量測分析比較。以驗證電腦模擬應用之準確性。並探討其不準確之綠由。此一廳堂容積為445立方公尺,每個座位佔有容積3.7立方公尺,前後排之聲壓位準差於4dB之內。迴響時問分佈於0.4~0.8 sec,1KHz頻段之迴響時間0.4 sec有明顯過低現象,但以清晰度,早期聲能量分佈聲場指標卻顯示具備良好之聽覺環境,顯示僅依據舊有沿用之迴響時間來判斷音質卻有不足之實。

並列摘要


The auralization combined the ray tracing. head transfer function and sound reproduction together is the most advanced technique in the world to simulate the sound quality in the room acoustics. The impulse response inside of hall simulates by the ray tracing or conical beam tracing similarly controls the accuracy of the auralization. The reasons of inaccuracy by such methods and the subjective sound indicators help to explain the lack or inefliciency of reverberation time will be discussed in the volume of 445m^3 lecture hall by compassion the results of measurement and prediction.

延伸閱讀