What is Deep Note?
'''Deep Note''' is a [[crescendo]] used for [[THX]] [[trailer (movie)|trailers]]. It was created by [[James A. Moorer]] in 1983,<ref name=Mansueto>{{cite web |url=http://www.fastcodesign.com/3027361/the-story-behind-the-thx-deep-note |title=The Story Behind The THX Deep Note |author=<!--Staff writer(s); no by-line.--> |publisher=Mansueto Ventures, LLC |access-date=9 November 2014}}</ref> who was now an [[employee]] of the [[Lucasfilm]] Computer Division.<ref name=Mansueto/> The sound is used on trailers for THX-certified [[movie theatre]]s and [[video]] [[movie release|releases]]. It was first used in the THX trailer shown before the 1983 [[premiere]] of ''[[Star Wars Episode VI: Return of the Jedi|Return of the Jedi]]''.<ref name=Mansueto/> ==Description== The U.S. trademark registration for the sound contains this description of it: {{quotation|The THX logo theme consists of 30 voices over seven [[Bar (music)|measures]], starting in a narrow range, 200 to 400 [[hertz|Hz]], and slowly diverting to preselected pitches encompassing three [[octave]]s. The 30 voices begin at pitches between 200 Hz and 400 Hz and arrive at pre-selected pitches spanning three octaves by the fourth measure. The highest pitch is slightly [[Musical tuning|detuned]] while there are double the number of voices of the lowest two pitches.<ref>{{cite web| url=http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=74309951| title = Trademark Applications and Registrations Retrieval (TARR)| access-date=9 November 2014| publisher = United States Patent and Trademark Office}}</ref>}} [[File:THX-DeepNote-Spectogram.png|thumb|Spectogram made using Spek]] The Deep Note had originally been from a soft to a [[wikt:loud|loud]] [[Pitch (music)|pitch]]. Over the years it has been [[remix]]ed [[digital]]ly which made the Deep Note with a more [[abridged]] [[sound]]. Beginning in 1988 the Deep Note became louder and abridged. In 1993 the Deep Note was cut short to save time for Laserdisc (1995 for VHS). Most recently, however, the Deep Note has been cut