November 2007
Intermediate to advanced
736 pages
46h 32m
English
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ABSORPTION OF SOUND
When a sound wave strikes a surface, part of its energy is absorbed by friction, part of its energy is transmitted and the remaining part of its energy is reflected. As reverberation directly depends on the loss of energy of sound waves due to friction, it is of great importance. This property of a surface by which sound energy is converted to some other form of energy is known as absorption and the absorption coefficient of a surface indicates the degree to which this surface affects the absorption of sound. It is thus the ratio of the energy obsorbed by the area to the energy striking the area.
The value of the coefficient of absorption will depend on the frequency of the sound. Table 6.3 gives the value of coefficient ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.