关于EASE模型是否封闭的官方回答

毛林

问：I started out working with a soccer stadium EASE Model which was an Open Room. I was able to get RaSTI values to map in both the Eyes and Area Mapping modules. The numbers looked reasonable, based on the speaker placement, time arrivals, etc.

The faces that made up the seating bowl were over simplified and needed to be redrawn to more accurately reflect the structure. After I redrew the seating bowl faces and added faces for the roof all RaSti values mapped to any Audience Area (or face) are 0 and all Articulation Loss values are 100%.

The room has about 1000 faces and is still open. Does a room need to be closed to get accurate values for RaSTI and Articulation Loss? What other factors might cause a room to stop giving these values?

I tried putting the stadium in a large box to close it but received a ton of errors.

Thanks in advance

Greg Swindle
答：

Hi Greg, For %ALcons and RaSTI you need an RT. EASE calculates the RT only when the room is closed.

_________________ Best regards, Jim Mobley Sr. Application Engineer Renkus-Heinz, Inc. 19201 Cook St. Foothill Ranch, CA 92610 USA TEL: +1-949-588-9997 FAX: +1-949-588-9514 www.renkus-heinz.com mailto:jim@renkus-heinz.com 不要在有疑问啦，官方说的还能有错

liyao_vip

看不懂，你干嘛不翻译过来再发

yangjie

演算%ALcons 和 RaSTI （也就是关于清晰度的两个指标）需要混响时间，EASE演算时，只能是封闭的房间才能有混响时间。

lingling870830

那要是一个像鸟巢那样露天的体育场不是就不能封闭了？这样要怎么弄啊？

hyfneo

这个有什么意思？？

xycad

那要是一个像鸟巢那样露天的体育场不是就不能封闭了？这样要怎么弄啊？
lingling870830 发表于 2009-8-5 09:40

                               
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先加一个面把它封上，然后把此面的材料的吸声系数使用理想的1即可。以前在电声技术杂志上，居然有作者拿此类问题说EASE太笨。

xycad

官方的意思是“要计算%ALcons 和 RaSTI，需要房间具有混响时间才可以， 只有当房间封闭时才能计算混响时间”。

pololink

户外体育场馆有需要RT、ALcons and RaSTI吗?不解??

solo_o

12# pololink


当然需要了,   除非户外 方圆几公里甚至几十公里都没有建筑,那么才没有RT,  
再考虑一个问题, 就算是都没建筑,那也有人吧..  有人  那声波扩散出去 与人体接触 也会产生反射的..  
ALcons and RaSTI   辅音损失和快速语言清晰度..  12L 的哥们, 你认为需不需要?

v606

好在后面还有解析，不然还真看不懂