Ear potential that is transmitted along the spiral ganglion, which sends information through the auditory portion of the vestibulocochlear nerve to the temporal lobe of the brain. The human ear can generally hear sounds with frequencies between 20 Hz and 20 kHz (the audio range). Sounds outside this range are considered infrasound (below 20 Hz) or ultrasound (above 20 kHz) Although hearing requires an intact and functioning auditory portion of the central nervous system as well as a working ear, human deafness (extreme insensitivity to sound) most commonly occurs because of abnormalities of the inner ear, rather than in the nerves
Ghosts (Monolake album) Ghosts (Monolake album) Ghosts is the seventh album from German techno music producer, Monolake (also known as Robert Henke). It is the second part of what is claimed to be a trilogy of three albums, that began with Monolake's sixth album, "Silence." Although the album follows a primarily techno aesthetic, it also incorporates elements of drum n' bass, dubstep, and ambient music. Some of the sounds of this album are notable in that they were created by sampling recordings that included frequencies outside of the range of human hearing (above 20 kHz), and then transposed down into the audible range.