Grunts and barks, which can occur in both positive (feeding, mother-piglet bonding) and negative situations.
Screams and squeals, which are predominantly linked to negative emotions such as fear, pain, or social isolation. PIG SOUND *EARRAPE*
In nature, pigs utilize a sophisticated range of vocalizations to communicate internal states. Research published in Nature and Scientific Reports classifies these sounds into six main categories: Grunts and barks, which can occur in both
Pushing the volume far beyond the digital clipping point. Grunts and barks
Amplifying low frequencies to create a physical jarring sensation for the listener.