4. Auditory Hallucinations
In addition to experiencing visual hallucinations, people also often have auditory hallucinations as well. These auditory hallucinations may be quite simple and routine or they can also be very bizarre.
Most people who experience sleep paralysis will hear some type of noise during this time. Most commonly people report that they hear voices of some type. These voices may be speaking in a foreign language.
The perception of screaming, whispering, and even laughing may be heard. Quite often a static noise or loud buzzing sound is reported by those in sleep paralysis. This is stated to sound like a radio that is not tuned to any station.
Other people report that they hear footsteps, breathing, ringing sounds, and knocking. There have even been reports of hearing unusual sounds such as growling, or horse carriages. The sounds also may be hard to characterize or very nonspecific.