CS101 Lecture Notes - Lecture 6: Sound, Early Human Migrations, Carrier Wave
Document Summary
We really want to trade with australia, news zealand, america. Canada has two of the major ports in the world. When we digiize something, we take litle bits of it. Approximate the wave by forcing it into litle chunks. Digital sound wave is a bunch of litle bits. Analogue is a tracing of the original sound wave. The higher the number of bits, the closer to the original waveform the picture becomes. Every 6 months, the number of pictures people take doubles. Am: amplitude modulaion (height of the waves) Send a carrier wave, sends signal that buries carrier wave. Add to get twice the height of the carrier wave. Most of what you receive is fm because its more precise. Am has a hard ime when it reaches and loses power, can get fuzzy. Canada was the home of one of the irst trans atlanic broadcast. Radio is one of the most transformaive situaions of our world.
