How can one small sound become super loud when more people make the same sound?

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It doesn’t really make sense to me how you can take one person clapping, but if you add in another person clapping and another and another until you have 10,000 people clapping it would sound thunderous. How do the sound waves gain strength? Then if one person yelled instead of clapping the yell would get drowned out, but if it’s a clapping sound it would add to the thunderous clapping? Is it due to the frequency or pitch of the different sound that it doesn’t merge into the larger sound waves at a different frequency?

In: Physics

Sounds are waves if you superimpose one waveform on top of another the amplitude of the wave increases as you add the two waves together. Increases in amplitude are an increase in the loudness of the noise.