The second is "sensory processing disorder", which is a characteristic or symptom of autism; I can't find it in the main article, but it's probably because some people with sensory processing disorder are more sensitive to coil whine / "hearing electricity", or more likely to consciously experience what most people consider background noise.
The second is "sensory processing disorder", which is a characteristic or symptom of autism; I can't find it in the main article, but it's probably because some people with sensory processing disorder are more sensitive to coil whine / "hearing electricity", or more likely to consciously experience what most people consider background noise.