November 2007
Intermediate to advanced
736 pages
46h 32m
English
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PLAYBACK NEEDLES
To minimise wear and secure the maximum useful life from a recording, a properly shaped needle, Fig. 8.22, must be used. A properly shaped needle will also minimise background noise.
The difference in shape between the cutting stylus and playback needle causes trackability distortion and pinch distortion. Trackability distortion is overcome by use of an elliptically shaped needle. When an elliptically shaped needle tracks the groove, its points of contact nearly coincide with the original points of cutting stylus contact at any given position. Pinch-effect distortion is caused by the changing width of the groove as the angle of groove sides and line of excursion of the cutting stylus change. As the groove width narrows, the round ...
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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.