These sound effects are the closest thing to a formal introduction I have managed. Headphones are optional; timing is everything.
Room echo
A short source followed by a small-room reverberation.
Illustrative fart sound effect · Mike Koenig, CC BY 3.0 · Recording and edit credits
Listening notes and recording details →What to listen for
A short source followed by a small-room reverberation. Use the regular player speed when comparing this clip with another. The recording is an illustrative fart sound effect, used in the folklore sense of barking spider.