Learn the Basics of Sound With This Interactive Waveform Guide
At the end of 2017, I was fortunate enough to look after adorable children for several hours, during which they asked all sorts of questions (mainly related to the masked characters ). One pertinent question was: “How does the TV make sound?” When I explained how sound and air interact, I really needed something tangible that I could use to show them exactly how it works – in particular, I needed this guide to signals.
Let’s Learn About Waveforms was created by Khan Academy developer Josh Como, inspired by this visual machine learning tutorial. It is interactive and allows you to change parameters such as amplitude and frequency in real time. The guide even includes a section describing and illustrating how sound travels through the air and reaches your ears.
You will get a quick overview of more complex concepts such as signal types, harmonics, and synthesis. If you’ve ever had a curiosity about sound or want to better understand the concept of your fancy speakers, check out Comeau’s guide, get your hands dirty and maybe get inspired to create your own sounds .
Learn About Signals Online | Hackaday