Demons can smell like sulfur, roses, cologne...anything! They can also appear as: an angel of light, a dead person or child, a spirit guide, a healing spirit (reiki), an alien, a fairy, a dwarf, a spirit animal etc! We can't safely discern them! The safest thing to do, is let Jesus and his angels protect us.
The recommendation is therefore that the stimulation should be applied with a 2500Hz carrier medium frequency sinusoidal alternating current, burst at 50 Hz (10ms ON: 10ms OFF) at a maximum tolerable level.
portion burst (release plus aspiration) of a stop consonant in initial position of syllable contains invariant perceptual information. But Dorman et al., [9] found that the burst and transition act in a complementary manner in identifying the initial voiced stops /b, d, g/. Ohde and Sharf [7] performed experiments with natural