When one crest and one trough overlap, the volume drops completely, creating a notch in the spectrogram (visual representation of sound waves). This is called constructive interference. When two crests or two troughs from different waves overlap, the volume of the signal is amplified. Like ocean waves, sound waves are characterized by crests (maximum points) and troughs (minimum points). The same process applies to any type of sound.Ī sound wave diagram, showing crests and troughs. Your brain then interprets this signal as a G note.
When the waves reach your eardrum, it vibrates and sends a signal to your brain. This changes the air pressure, resulting in distinct sound waves. When you do, the air molecules around the 3rd string start moving. Let’s say you play a G note on your guitar. How does audio work?Īudio is made up of sound waves, which are formed by vibrating air molecules. This will help clarify some of the technical bits we’ll cover in the next section. phaser, let’s start off with a bit of background theory. Before we get into the key features of flanger vs.
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