November 2007
Intermediate to advanced
736 pages
46h 32m
English
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PA SYSTEM CHARACTERISTICS
In speech reinforcement systems the listener hears sound from two sources. Part of the sound comes from the person making the speech; yet another part of the sounds comes from the PA system. The total sound that arrives is greater than that from either source alone, but the two portions do not arrive simultaneously. From a practical viewpoint, the maximum tolerable time delay between the two arriving wavefronts is approximately 25 milliseconds. A longer time delay is likely to result in a confusing separation of the two sound sources; the listener's attention jumps from one source to the other and becomes distracted. Since the human ear has a natural tolerance for echo effects, an echo tends to be disregarded under ordinary ...
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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.