You create a sound or an image of an object within
range that lasts for the duration. The illusion also ends
if you dismiss it as an action or cast this spell again.
If you create a sound, its volume can range from a
whisper to a scream. It can be your voice, someone
else's voice, a lion's roar, a beating of drums, or any
other sound you choose. The sound continues
unabated throughout the duration, or you can make
discrete sounds at different times before the spell
ends.
If you create an image of an object - such as a chair,
muddy footprints, or a small chest - it must be no
larger than a 5-foot cube. The image can't create
sound, light, smell, or any other sensory effect.
Physical interaction with the image reveals it to be an
illusion, because things can pass through it.
If a creature uses its action to examine the sound or
image, the creature can determine that it is an illusion
with a successful Intelligence (Investigation) check
against your spell save DC. If a creature
discerns the
illusion for what it is, the illusion becomes faint to the creature.