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Robert Ingebretsen
Robert B. Ingebretsen (30 March 1948 – 2 March 2003) was a pioneer in the development of digital sound. As a teenager in the 1960s, Ingebretsen built robots and primitive computers that could talk. As a University of Utah graduate student in the early 1970s, Ingebretsen assisted Dr. Thomas G. Stockham in the development of Stockham's restoration technique for sound and images.Stockham, T.G., Jr., T.M. Cannon, and R.B. Ingebretsen, ''Blind deconvolution through Digital Signal Processing'', Proceedings of the IEEE, April 1975. This work led to RCA's Caruso-A Legendary Performer that applied Stockham's restoration techniques to acoustic recordings of opera great Enrico Caruso. Ingebretsen worked with Pixar co-founder Ed Catmull in 1972 to produce one of the first digital films, A Computer Animated Hand.Ingebretsen, Robby, ''First 3D Rendered Film From 1972 and My Visit to Pixar''nerdplusart.com After graduation in 1975, Ingebretsen joined Stockham at Soundstream Inc., a Utah ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Sound
Digital audio is a representation of sound recorded in, or converted into, digital form. In digital audio, the sound wave of the audio signal is typically encoded as numerical samples in a continuous sequence. For example, in CD audio, samples are taken 44,100 times per second, each with 16-bit resolution. Digital audio is also the name for the entire technology of sound recording and reproduction using audio signals that have been encoded in digital form. Following significant advances in digital audio technology during the 1970s and 1980s, it gradually replaced analog audio technology in many areas of audio engineering, record production and telecommunications in the 1990s and 2000s. In a digital audio system, an analog electrical signal representing the sound is converted with an analog-to-digital converter (ADC) into a digital signal, typically using pulse-code modulation (PCM). This digital signal can then be recorded, edited, modified, and copied using computers, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Recording
In digital recording, an audio signal, audio or video signal is converted into a stream of discrete numbers representing the changes over time in air pressure for audio, or Color, chroma and luminance values for video. This number stream is saved to a storage device. To play back a digital recording, the numbers are retrieved and converted back into their original analog signal, analog audio or video forms so that they can be heard or seen. In a properly matched analog-to-digital converter (ADC) and digital-to-analog converter (DAC) pair, the analog signal is accurately reconstructed, within the constraints of the Nyquist–Shannon sampling theorem, which dictates the sampling rate and quantization error dependent on the Audio bit depth, audio or Bit depth (computer graphics), video bit depth. Because the signal is stored digitally, assuming proper error detection and correction, the recording is not degraded by copying, storage or interference. Timeline *October 3, 1938: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2003 Deaths
This is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked below. 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 Earlier years ''Deaths in years earlier than this can usually be found in the main articles of the years.'' See also * Lists of deaths by day * Deaths by year (category) {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1948 Births
Events January * January 1 ** The General Agreement on Tariffs and Trade (GATT) is inaugurated. ** The current Constitutions of Constitution of Italy, Italy and of Constitution of New Jersey, New Jersey (both later subject to amendment) go into effect. ** The railways of Britain are nationalized, to form British Railways. * January 4 – British rule in Burma, Burma gains its independence from the United Kingdom, becoming an independent republic, named the 'Post-independence Burma (1948–1962), Union of Burma', with Sao Shwe Thaik as its first President and U Nu its first Prime Minister. * January 5 – In the United States: ** Warner Brothers shows the first color newsreel (''Tournament of Roses Parade'' and the ''Rose Bowl Game''). ** The first Kinsey Reports, Kinsey Report, ''Sexual Behavior in the Human Male'', is published. * January 7 – Mantell UFO incident: Kentucky Air National Guard pilot Thomas Mantell crashes while in pursuit of an unidentified fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt Lake City, Utah
Salt Lake City, often shortened to Salt Lake or SLC, is the List of capitals in the United States, capital and List of cities and towns in Utah, most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, Utah, Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake City Metropolitan Statistical Area (MSA), which had a population of 1,257,936 at the 2020 census. Salt Lake City is further situated within a larger metropolis known as the Salt Lake City–Provo–Orem Combined Statistical Area, Salt Lake City–Ogden–Provo Combined Statistical Area, a corridor of contiguous urban and suburban development stretched along a segment of the Wasatch Front, comprising a population of 2,746,164 (as of 2021 estimates), making it the 22nd largest in the nation. With a population of 199,723 in 2020, it is the List of United States cities by population, 111th most populous city in the United States. It is also the central c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heart Failure
Heart failure (HF), also known as congestive heart failure (CHF), is a syndrome caused by an impairment in the heart's ability to Cardiac cycle, fill with and pump blood. Although symptoms vary based on which side of the heart is affected, HF typically presents with shortness of breath, Fatigue (medical), excessive fatigue, and bilateral peripheral edema, leg swelling. The severity of the heart failure is mainly decided based on ejection fraction and also measured by the severity of symptoms. Other conditions that have symptoms similar to heart failure include obesity, kidney failure, liver disease, anemia, and thyroid disease. Common causes of heart failure include coronary artery disease, heart attack, hypertension, high blood pressure, atrial fibrillation, valvular heart disease, alcohol use disorder, excessive alcohol consumption, infection, and cardiomyopathy. These cause heart failure by altering the structure or the function of the heart or in some cases both. There are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centerville, Utah
Centerville is a city in southeastern Davis County, Utah, United States. Centerville is part of the Ogden-Clearfield Metropolitan Statistical Area. The population was 15,335 at the 2010 census. It is located adjacent to the easternmost part of the Great Salt Lake. History Centerville was first settled by Thomas Grover in the fall of 1847. The community was originally known as Deuel Settlement but was renamed to Cherry Creek after the Cherry family arrived. After an 1850 survey found the town was located precisely between Farmington and Bountiful, it became known as Centerville, and it was this name that stuck. * In 1849, Shadrach Roundy's family farmed in the general vicinity of Centerville, and in the winter of 1849 he built a grist mill on Deuel Creek. He also made molasses from corn stalks at this mill.Jenson. ''Encyclopedic History''. p. 127 *In 1851, a log school house was built in Centerville but was replaced by an adobe building in 1854 by a much larger building in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academy Of Motion Picture Arts And Sciences
The Academy of Motion Picture Arts and Sciences (AMPAS, often pronounced ; also known as simply the Academy or the Motion Picture Academy) is a professional honorary organization in Beverly Hills, California, U.S., with the stated goal of advancing the arts and sciences of motion pictures. The Academy's corporate management and general policies are overseen by a board of governors, which includes representatives from each of the craft branches. As of April 2020, the organization was estimated to consist of around 9,921 motion picture professionals. The Academy is an international organization and membership is open to qualified filmmakers around the world. The Academy is known around the world for its annual Academy Awards, both officially and popularly known as "The Oscars". In addition, the Academy holds the Governors Awards annually for lifetime achievement in film; presents Academy Scientific and Technical Award, Scientific and Technical Awards annually; gives Student Aca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academy Award, Scientific Or Technical
The Scientific and Technical Awards are three different Honorary Awards that are given by the Academy of Motion Picture Arts and Sciences (AMPAS) during the annual Academy Awards season. The Awards have been presented since the 4th Academy Awards in November 1931, to recognize original developments resulting in significant improvements in motion picture production and exhibition. The Awards are presented at a formal dinner ceremony a couple weeks before the principal Academy Awards ceremony. The 2025 awards will take place April 29, two months after the 97th Academy Awards. These awards recognize significant milestones in the development of technology for motion pictures and are conferred by vote of the Academy Board of Governors. Potential nominations for awards are investigated by a special committee within the Academy, "The Scientific and Technical Awards Committee", which presents a written report and recommendation to the Board of Governors. Additionally, the John ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fantasia (1940 Film)
''Fantasia'' is a 1940 American Animated film, animated Musical film, musical anthology film produced by Walt Disney Productions, with story direction by Joe Grant and Dick Huemer and production supervision by Walt Disney and Ben Sharpsteen. It consists of eight animated segments set to pieces of classical music conducted by Leopold Stokowski, seven of which are performed by the Philadelphia Orchestra. Music critic and composer Deems Taylor acts as the film's Master of Ceremonies who introduces each segment in live action. Disney settled on the film's concept in 1938 as work neared completion on ''The Sorcerer's Apprentice'', originally an elaborate ''Silly Symphony'' cartoon designed as a comeback role for Mickey Mouse, who had declined in popularity. As production costs surpassed what the short could earn, Disney decided to include it in a feature-length film of multiple segments set to classical pieces with Stokowski and Taylor as collaborators. The soundtrack was recorded u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walt Disney Pictures
Walt Disney Pictures is an American film Film production company, production company and subsidiary of Walt Disney Studios (division), the Walt Disney Studios, a division of Disney Entertainment, which is owned by the Walt Disney Company. The studio is the flagship producer of Live action, live-action feature films and animation within the Walt Disney Studios unit and is based at the Walt Disney Studios (Burbank), Walt Disney Studios in Burbank, California. Animated films produced by Walt Disney Animation Studios and Pixar, Pixar Animation Studios are also released under the studio banner. Walt Disney Studios Motion Pictures distributes and markets the films produced by Walt Disney Pictures. Disney began producing live-action films in the 1950s. The live-action division became Walt Disney Pictures in 1983, when Disney reorganized its entire studio division, which included the separation from the feature animation division and the subsequent creation of Touchstone Pictures. At the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles, California
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, cultural center of Southern California. With an estimated 3,878,704 residents within the city limits , it is the List of United States cities by population, second-most populous in the United States, behind only New York City. Los Angeles has an Ethnic groups in Los Angeles, ethnically and culturally diverse population, and is the principal city of a Metropolitan statistical areas, metropolitan area of 12.9 million people (2024). Greater Los Angeles, a combined statistical area that includes the Los Angeles and Riverside–San Bernardino metropolitan areas, is a sprawling metropolis of over 18.5 million residents. The majority of the city proper lies in Los Angeles Basin, a basin in Southern California adjacent to the Pacific Ocean in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
