Hypersonic effect Hypersonic effect The hypersonic effect is a term coined to describe a phenomenon reported in a controversial scientific study by Tsutomu Oohashi et al., which claims that, although humans cannot consciously hear ultrasound (sounds at frequencies above approximately 20 kHz), the presence or absence of those frequencies has a measurable effect on their physiological and psychological reactions. Numerous other studies have contradicted the portion of the results relating to the subjective reaction to high-frequency audio, finding that people who have "good ears" listening to Super Audio CDs and high resolution DVD-Audio recordings on high fidelity systems capable of reproducing sounds
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.