July 2003
Intermediate to advanced
400 pages
18h 10m
English
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Chapter 5
Microphones
A microphone converts sound energy into its electrical analogue – and should do this without changing the information content in any important way. A microphone should therefore do three things:
● for normal sound levels it must produce an electrical signal that is well above its own electrical noise level;
● for normal sound levels the signal it produces must be substantially undistorted;
● for a particular sound source it should respond almost equally to all significant audio frequencies present.
In current high-quality microphones the first two objectives are easily met, although to achieve a signal that can be transmitted cleanly even along the lead of the microphone may need a transformer or amplifier so close ...
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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.