Audio Signal Processor
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The Audio Signal Processor or ASP is a large-scale
digital signal processor A digital signal processor (DSP) is a specialized microprocessor chip, with its architecture optimized for the operational needs of digital signal processing. DSPs are fabricated on MOS integrated circuit chips. They are widely used in audio si ...
developed by
James A. Moorer James Anderson Moorer (born November 25, 1945) is a digital audio and computer music engineer, responsible for over 40 technical publications and four patents. He personally designed and wrote many of the advanced DSP algorithms for the Sonic ...
at
Lucasfilm Lucasfilm Ltd. LLC is an American film and television production company and a subsidiary of Walt Disney Studios, which is a business segment of The Walt Disney Company. The studio is best known for creating and producing the ''Star Wars'' and ' ...
's
The Droid Works ''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the m ...
. He programmed a number of
Digital signal processing Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations. The digital signals processed in this manner are ...
algorithms that were used in major motion picture features. Sounds processed by the ASP were used in the
THX THX Ltd. is an American company that develops the eponymous high fidelity audio/visual reproduction standards for movie theaters, screening rooms, home theaters, computer speakers, gaming consoles, car audio systems, and video games. Founded ...
logo's
Deep Note Waveform of the Deep Note The Deep Note is the sound trademark of THX Ltd., being a distinctive synthesized crescendo that glissandos from a relatively narrow frequency spread (about 200–400 Hz) to a broader frequency spread (of about ...
,
Return of the Jedi ''Return of the Jedi'' (also known as ''Star Wars: Episode VI – Return of the Jedi'' is a 1983 American epic space opera film directed by Richard Marquand. The screenplay is by Lawrence Kasdan and George Lucas from a story by Lucas, who ...
,
Indiana Jones and the Temple of Doom ''Indiana Jones and the Temple of Doom'' is a 1984 American action-adventure film directed by Steven Spielberg. It is the second installment in the ''Indiana Jones'' franchise, and a prequel to the 1981 film ''Raiders of the Lost Ark'', fea ...
, and others. ASP provided the technological basis for the
SoundDroid The SoundDroid is an early digital audio workstation designed by a team of engineers led by James A. Moorer at Lucasfilm between 1980 and 1987. It was a hard-disk–based, nonlinear audio editor developed on the Audio Signal Processor (ASP), a la ...
.


Notations

* ''The Early Years''. About
Sonic Studio Sonic Studio is an American company manufacturing digital audio production tools for engineering professionals. The company was created when Sonic Solutions divested itself of its audio product lines in order to concentrate on DVD and multimedia†...
, LLC


References

* *{{cite book, title=Droidmaker: George Lucas and the Digital Revolution, first=Michael, last=Rubin, publisher=Triad Publishing Company, year=2005, isbn=0-937404-67-5, pag
518
url=https://archive.org/details/droidmakergeorge0000rubi/page/518 Digital signal processing Audio editors