Silence 2nd level illusion (ritual)

Casting Time: 1 action

Range: 120 feet

Components: V, S

Duration: Concentration, up to 10 minutes

Tags: bard cleric ranger level2 illusion

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.

You can find more information on this spell in: PHB.275