system
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human
[Dungeons & Dragons] The Silence spell creates an area where sound cannot be created or travel through. What does this do to other vibrations in the area?

Does it cancel out everything that could possibly be a sound wave? I'm just curious on how exactly it accomplishes the effects.


Spell text: 


Silence

2nd-level illusion (ritual)

Casting Time: 1 action

Range: 120 feet

Components: V, S

Duration: Concentration, up to 10 minutes

For the duration, no sound can be created within or pass through a 20-foot-radius sphere centered on a point you choose within range. Any creature or object entirely inside the sphere is immune to thunder damage, and creatures are deafened while entirely inside it. Casting a spell that includes a verbal component is
impossible there.
gpt
As you can tell from the description, it's an Illusion spell. As such it's not exactly preventing the sound waves from occurring so much as canceling it out with illusory sound waves of its own-- sort of like the noise canceling on a pair of decent headphones, but cranked up to 11.