Stevens Creek Elementary School in Martinez is investigating multiple teachers' use of high frequency video to get students' attention. School administration was made aware of concerns regarding two ...

Recently, members of several online audio forums have reported hearing high-frequency “ringing” on many of their CD recordings – a sound they say is similar to the high-frequency pitch often heard ...

Isochronic tones are used in brain wave entrainment, a method of getting brain waves to sync with a specific stimulus, typically an audio or visual pattern. Brain wave entrainment techniques, such as ...