why does the engine of motor verhicles emit a buzzing sound instead of continuous small booms?

Question

why does the engine of motor verhicles emit a buzzing sound instead of continuous small booms?

In: Engineering

Answer 1

Well, it does. Sort of. At low RPM, you can hear individual pops. [Here](https://youtu.be/HsccG5Nh3kw) is a video I found from a quick YouTube search of a super low-RPM engine. However, especially in cars and other vehicles, you will likely also hear various other moving parts. Belts, transmissions, etc.

At higher RPM, your explosions blend together into a buzz. The sound that we recognize as a buzz is really just a buh-buh-buh-buh sound but really fast.