February 2016
Intermediate to advanced
216 pages
14h 38m
English
Content preview from Newnes Audio and Hi-Fi Engineer's Pocket Book, 3rd Edition
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142
Hi-fi sound with video
Sound from video recorders is poor because although the video
is laid down in high-speed helical tracks by heads on a rotating
drum, sound is recorded at
1
inch per second in a linear track
along the tape. Track width in both formats is 0.35 mm
compared to 0.6 mm for audio cassettes.
FM recording When a carrier wave is frequency modulated
it deviates up and down from its standing frequency. The times
per second it deviates is the modulation frequency and the
extent of the deviation gives the modulation amplitude. A
recorded f.m. signal is insensitive to amplitude variations, so is
not subject to amplitude distortio ...
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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.