As a follow up from the Acoustical Measurements Standards white paper I have written an article entitled Listening Room Reflections and the Energy Time Curve which has been published on Hi-Fi Zine. The article goes into more detail than the white paper in terms of the room acoustic and psychoacoustic background of how we arrived at the standards in the white paper. Hi-Fi Zine is a great little webzine publication that is put out maybe 6 times a year or so by a band of volunteers; it's a good read and worth adding to your RSS reader. Have a read of the article and please leave a comment on Hi-Fi Zine if you have any questions!