Outdoor-Indoor Transmission Class

From Wikipedia, the free encyclopedia

You have new messages (last change).
Please help improve this article or section by expanding it.
Further information might be found on the talk page or at requests for expansion.
This article has been tagged since January 2007.
There are very few or no other articles that link to this one.
Please help introduce links in articles on related topics. After links have been created, remove this message.
This article has been tagged since July 2006.

Outdoor-Indoor Transmission Class (OITC) is a standard used for indicating the rate of transmission of sound between outdoor and indoor spaces in a structure. It is It is based on the ASTM E-1332 Standard Classification for the Determination of Outdoor-Indoor Transmission Class. An alternative similar standard for determining the rate of acoustic isolation of a separation between spaces is STC While STC is based on a "White' noise spectrum, this standard utilizes a source noise spectrum that combines Aircraft/Rail/Truck traffic and is weighted more to lower frequencies. [1]

[edit] Links:

  1. ASTM International: [2]
  2. [3]
Retrieved from "http://en.wikipedia.org../../../o/u/t/Outdoor-Indoor_Transmission_Class_de6d.html"