## What does a simple sinusoidal wave sound like?

DEFINITION: A sine wave sounds like it looks: smooth and clean. It is sound at its most basic. The sound of a sine wave is only made up of one thing, something known as the fundamental.

## Why are sound waves sine?

As described above, the air pressure rises and falls. For a single-frequency sound wave, the rate at which it does this is regular and continuous, taking the shape of a sine wave. Thus, the graph of a sound wave is a simple sine wave only if the sound has only one frequency component in it – that is, just one pitch.

**What makes a sinusoidal wave?**

Sine waves – Trigonometry. A sine wave is a repetitive change or motion which, when plotted as a graph, has the same shape as the sine function. For example, on the right is a weight suspended by a spring. As it bounces up and down, its motion, when graphed over time, is a sine wave.

**Are all sound waves sinusoidal?**

Single-frequency sound waves are sinusoidal waves. Although pure single-frequency sound waves do not occur naturally, they can be created artificially by means of a computer. If we’re talking about a pure sine wave, then the wave’s amplitude, A, is the highest y value of the wave.

### Are sound waves sinusoidal?

Single-frequency sound waves are sinusoidal waves. The graph of a sound wave is repeated Figure 2.4 with some of its parts labeled. The amplitude of a wave is its y value at some moment in time given by x. If we’re talking about a pure sine wave, then the wave’s amplitude, A, is the highest y value of the wave.

### Are sound waves sin or cos?

Sound waves aren’t as regular and recurring as a regular sine or cosine graph, but they still are very similar.

**Do waves have to be sinusoidal?**

Those special shapes, the ones that propagate without changing shape, are the sine waves. Since most waves in most media have some of this dependence of velocity on shape, we get used to using the sine waves as the basis for our description of almost all waves, even in the cases where it’s not really needed.