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TIMIT is a corpus of phonemically and lexically transcribed speech of American English speakers of different sexes and dialects. Each transcribed element has been delineated in time.

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39-559: TIMIT was designed to further acoustic-phonetic knowledge and automatic speech recognition systems. It was commissioned by DARPA and corpus design was a joint effort between the Massachusetts Institute of Technology , SRI International , and Texas Instruments (TI). The speech was recorded at TI, transcribed at MIT, and verified and prepared for publishing by the National Institute of Standards and Technology (NIST). There

78-589: A General Counsel . The highest-ranking military officers in the department, and senior military advisers to the secretary, are the Chief of Staff of the Air Force and Chief of Space Operations . By direction of the Secretary of Defense, the Secretary of the Air Force assigns Air Force and Space Force units – apart from those units performing duties enumerated in 10 U.S.C.   § 9013 unless otherwise directed – to

117-743: A space command within the Aerospace Force and renamed the Air National Guard to the Aerospace National Guard. The legislation was cosponsored by Representatives G. William Whitehurst , Ike Skelton , and Robin Beard of the United States House Committee on Armed Services . Although the legislation was supported by General James E. Hill , who commanded North American Aerospace Defense Command and Aerospace Defense Command ,

156-560: A cooperation among Bell Labs , General Electric and MIT , which DARPA supported by funding Project MAC at MIT with an initial two-million-dollar grant. DARPA supported the evolution of the ARPANET (the first wide-area packet switching network), Packet Radio Network, Packet Satellite Network and ultimately, the Internet and research in the artificial intelligence fields of speech recognition and signal processing, including parts of Shakey

195-597: A corpus of telephone speech was created was to train speech recognition software. In the Blizzard challenge, different software has the obligation to convert audio recordings into textual data and the TIMIT corpus was used as a standardized baseline. DARPA The Defense Advanced Research Projects Agency ( DARPA ) is a research and development agency of the United States Department of Defense responsible for

234-434: A larger set Each sentence averages 3 seconds long and is spoken by 630 different speakers. It was the first notable attempt in creating and distributing a speech corpus and the overall project has produced costs of 1.5 million US$ . The full name of the project is DARPA-TIMIT Acoustic-Phonetic Continuous Speech Corpus and the acronym TIMIT stands for Texas Instruments/Massachusetts Institute of Technology. The main reason why

273-641: A number of new technologies that were developed within the framework of the GXV-T program. The goal of this program is to create a lightly armored combat vehicle of not very large dimensions, which, due to maneuverability and other tricks, can successfully resist modern anti-tank weapon systems. In September 2020, DARPA and the US Air Force announced that the Hypersonic Air-breathing Weapon Concept (HAWC) are ready for free-flight tests within

312-702: A proposed name change was considered in 2018 and in 2019 the Air Force Association also called for renaming the department. In 2022, the Air Force Association renamed itself the Air & Space Forces Association , internally acting on its proposal to reflect the Space Force in the organization's name. In a 2021 article in the Space Force Journal , two Space Force officers also proposed a name change for

351-553: A whole series of X planes over the next 10 years. Between 2014 and 2016, DARPA shepherded the first machine-to-machine computer security competition, the Cyber Grand Challenge (CGC), bringing a group of top-notch computer security experts to search for security vulnerabilities , exploit them, and create fixes that patch those vulnerabilities in a fully automated fashion. It is one of DARPA prize competitions to spur innovations. In June 2018, DARPA leaders demonstrated

390-464: Is Stefanie Tompkins . As of 2021 , their mission statement is "to make pivotal investments in breakthrough technologies for national security". The Advanced Research Projects Agency (ARPA) was suggested by the President's Scientific Advisory Committee to President Dwight D. Eisenhower in a meeting called after the launch of Sputnik. ARPA was formally authorized by President Eisenhower in 1958 for

429-582: Is also a telephone bandwidth version called NTIMIT (Network TIMIT). TIMIT and NTIMIT are not freely available — either membership of the Linguistic Data Consortium , or a monetary payment, is required for access to the dataset. The TIMIT telephone corpus was an early attempt to create a database with speech samples. It was published in the year 1988 on CD-ROM and consists of only 10 sentences per speaker. Two 'dialect' sentences were read by each speaker, as well as another 8 sentences selected from

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468-586: Is credited with boosting the development of the fledgling personal computer industry. Some young computer scientists left the universities to startups and private research laboratories such as Xerox PARC . Between 1976 and 1981, DARPA's major projects were dominated by air, land, sea, and space technology, tactical armor and anti-armor programs, infrared sensing for space-based surveillance, high-energy laser technology for space-based missile defense, antisubmarine warfare, advanced cruise missiles, advanced aircraft, and defense applications of advanced computing. Many of

507-580: The National Aeronautics and Space Administration ( NASA ) and the military space programs to the individual services. This allowed ARPA to concentrate its efforts on the Project Defender (defense against ballistic missiles), Project Vela (nuclear test detection), and Project AGILE ( counterinsurgency R&D) programs, and to begin work on computer processing, behavioral sciences , and materials sciences. The DEFENDER and AGILE programs formed

546-752: The combatant commands . Only the Secretary of Defense and the President have the authority to approve a transfer of forces between combatant commands. In 1981, Congressman Ken Kramer introduced legislation to rename the Department of the Air Force as the Department of the Aerospace Force, along with renaming the United States Air Force as the United States Aerospace Force, to reorient the service and department from an air force to an aerospace force. The legislation would also have established

585-668: The personal computer and the internet on the list of innovations for which DARPA can claim at least partial credit." Its track record of success has inspired governments around the world to launch similar research and development agencies. DARPA is independent of other military research and development and reports directly to senior Department of Defense management. DARPA comprises approximately 220 government employees in six technical offices, including nearly 100 program managers, who together oversee about 250 research and development programs. The agency's current director, appointed in March 2021,

624-600: The Adaptive Suspension Vehicle (ASV) nicknamed the "Walker" at the Ohio State University , under a research contract from DARPA. The vehicle was 17 feet long, 8 feet wide, and 10.5 feet high, and had six legs to support its three-ton aluminum body, in which it was designed to carry cargo over difficult terrains. However, DARPA lost interest in the ASV, after problems with cold-weather tests. On February 4, 2004,

663-798: The Agency was centered on information processing and aircraft-related programs, including the National Aerospace Plane (NASP) or Hypersonic Research Program. The Strategic Computing Program enabled DARPA to exploit advanced processing and networking technologies and to rebuild and strengthen relationships with universities after the Vietnam War . In addition, DARPA began to pursue new concepts for small, lightweight satellites ( LIGHTSAT ) and directed new programs regarding defense manufacturing, submarine technology, and armor/anti-armor. In 1981, two engineers, Robert McGhee and Kenneth Waldron, started to develop

702-647: The Air Force did not support the name change and the legislation did not pass. Following the United States Space Force 's establishment, calls have been made for the Department of the Air Force to rename itself the Department of the Air and Space Forces to acknowledge the Space Force, similar to calls made for the Department of the Navy to rename itself the Department of the Navy and Marine Corps. SpaceNews reported that

741-641: The Air Force is divided into the Office of the Secretary of the Air Force , which is led by the United States Secretary of the Air Force , the Air Staff which is led by the Chief of Staff of the Air Force , and the Space Staff which is led by the Chief of Space Operations . The Department of the Air Force consists of the United States Air Force and United States Space Force . [REDACTED] Office of

780-462: The Air Force's principal deputy is the Under Secretary of the Air Force (SAF/US). Their senior staff assistants in the Office of the Secretary of the Air Force are five Assistant Secretaries for Acquisition, Technology & Logistics , Financial Management & Comptroller , Installations, Environment & Energy , Manpower & Reserve Affairs , Space Acquisition & Integration and

819-515: The United States Code ) and it is the military department within which the United States Air Force and the United States Space Force are organized. The Department of the Air Force is headed by the Secretary of the Air Force (SAF/OS), a civilian, who has the authority to conduct all of its affairs, subject to the authority, direction and control of the Secretary of Defense . The Secretary of

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858-641: The agency shut down its so called "LifeLog Project". The project's aim would have been, "to gather in a single place just about everything an individual says, sees or does". On October 28, 2009, the agency broke ground on a new facility in Arlington County, Virginia a few miles from The Pentagon . In fall 2011, DARPA hosted the 100-Year Starship Symposium with the aim of getting the public to start thinking seriously about interstellar travel. On June 5, 2016, NASA and DARPA announced that it planned to build new X-planes with NASA 's plan setting to create

897-494: The agency's research portfolio, and two additional offices that manage special projects. All offices report to the DARPA director, including: A 1991 reorganization created several offices which existed throughout the early 1990s: A 2010 reorganization merged two offices: A list of DARPA's active and archived projects is available on the agency's website. Because of the agency's fast pace, programs constantly start and stop based on

936-572: The department. Congress has also proposed a variety of name changes within the Department of the Air Force to recognize the Space Force's establishment, including a 2022 proposal by the U.S. Senate to rename the Air National Guard to the Air and Space National Guard and 2020 proposal to rename the Airman's Medal the Air and Space Force Medal, mirroring the Navy and Marine Corps Medal . The Department of

975-543: The development of emerging technologies for use by the military. Originally known as the Advanced Research Projects Agency ( ARPA ), the agency was created on February 7, 1958, by President Dwight D. Eisenhower in response to the Soviet launching of Sputnik 1 in 1957. By collaborating with academia, industry, and government partners, DARPA formulates and executes research and development projects to expand

1014-454: The early explorers' discoveries. TRANSIT, sponsored by the Navy and developed under the leadership of Richard Kirschner at Johns Hopkins, was the first satellite positioning system." During the late 1960s, with the transfer of these mature programs to the Services, ARPA redefined its role and concentrated on a diverse set of relatively small, essentially exploratory research programs. The agency

1053-563: The first scientist to administer ARPA, managed to raise its budget to $ 250 million. It was Ruina who hired J. C. R. Licklider as the first administrator of the Information Processing Techniques Office , which played a vital role in creation of ARPANET , the basis for the future Internet. Additionally, the political and defense communities recognized the need for a high-level Department of Defense organization to formulate and execute R&D projects that would expand

1092-633: The foundation of DARPA sensor, surveillance , and directed energy R&D, particularly in the study of radar , infrared sensing, and x-ray / gamma ray detection. ARPA at this point (1959) played an early role in Transit (also called NavSat) a predecessor to the Global Positioning System (GPS). "Fast-forward to 1959 when a joint effort between DARPA and the Johns Hopkins Applied Physics Laboratory began to fine-tune

1131-540: The frontiers of technology and science, often beyond immediate U.S. military requirements. The name of the organization first changed from its founding name, ARPA, to DARPA, in March 1972, changing back to ARPA in February 1993, then reverted to DARPA in March 1996. The Economist has called DARPA "the agency that shaped the modern world," with technologies like " Moderna's COVID-19 vaccine ... weather satellites , GPS , drones , stealth technology , voice interfaces ,

1170-596: The frontiers of technology beyond the immediate and specific requirements of the Military Services and their laboratories. In pursuit of this mission, DARPA has developed and transferred technology programs encompassing a wide range of scientific disciplines that address the full spectrum of national security needs. From 1958 to 1965, ARPA's emphasis centered on major national issues, including space, ballistic missile defense , and nuclear test detection. During 1960, all of its civilian space programs were transferred to

1209-622: The needs of the U.S. government. Structured information about some of the DARPA's contracts and projects is publicly available. DARPA is well known as a high-tech government agency, and as such has many appearances in popular fiction. Some realistic references to DARPA in fiction are as "ARPA" in Tom Swift and the Visitor from Planet X (DARPA consults on a technical threat), in episodes of television program The West Wing (the ARPA-DARPA distinction),

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1248-641: The next year. Victoria Coleman became the director of DARPA in November 2020. In recent years, DARPA officials have contracted out core functions to corporations. For example, during fiscal year 2020, Chenega ran physical security on DARPA's premises, System High Corp. carried out program security, and Agile Defense ran unclassified IT services. General Dynamics runs classified IT services. Strategic Analysis Inc. provided support services regarding engineering, science, mathematics, and front office and administrative work. DARPA has six technical offices that manage

1287-620: The purpose of forming and executing research and development projects to expand the frontiers of technology and science, and able to reach far beyond immediate military requirements. The two relevant acts are the Supplemental Military Construction Authorization ( Air Force ) (Public Law 85-325) and Department of Defense Directive 5105.15, in February 1958. It was placed within the Office of the Secretary of Defense (OSD) and counted approximately 150 people. Its creation

1326-646: The robot . DARPA also supported the early development of both hypertext and hypermedia . DARPA funded one of the first two hypertext systems, Douglas Engelbart 's NLS computer system, as well as The Mother of All Demos . DARPA later funded the development of the Aspen Movie Map , which is generally seen as the first hypermedia system and an important precursor of virtual reality . The Mansfield Amendment of 1973 expressly limited appropriations for defense research (through ARPA/DARPA) only to projects with direct military application. The resulting " brain drain "

1365-636: The successful programs were transitioned to the Services, such as the foundation technologies in automatic target recognition , space-based sensing, propulsion, and materials that were transferred to the Strategic Defense Initiative Organization (SDIO), later known as the Ballistic Missile Defense Organization (BMDO), now titled the Missile Defense Agency (MDA). During the 1980s, the attention of

1404-674: The television program Numb3rs , and the Netflix film Spectral . United States Department of the Air Force The United States Department of the Air Force ( DAF ) is one of the three military departments within the Department of Defense of the United States of America . The Department of the Air Force was formed on September 18, 1947, per the National Security Act of 1947 (codified into Title 10 of

1443-550: Was directly attributed to the launching of Sputnik and to U.S. realization that the Soviet Union had developed the capacity to rapidly exploit military technology. Initial funding of ARPA was $ 520 million. ARPA's first director, Roy Johnson, left a $ 160,000 management job at General Electric for an $ 18,000 job at ARPA. Herbert York from Lawrence Livermore National Laboratory was hired as his scientific assistant. Johnson and York were both keen on space projects, but when NASA

1482-452: Was established later in 1958 all space projects and most of ARPA's funding were transferred to it. Johnson resigned and ARPA was repurposed to do "high-risk", "high-gain", "far out" basic research, a posture that was enthusiastically embraced by the nation's scientists and research universities. ARPA's second director was Brigadier General Austin W. Betts, who resigned in early 1961 and was succeeded by Jack Ruina who served until 1963. Ruina,

1521-552: Was renamed the Defense Advanced Research Projects Agency (DARPA) in 1972, and during the early 1970s, it emphasized direct energy programs, information processing, and tactical technologies. Concerning information processing, DARPA made great progress, initially through its support of the development of time-sharing . All modern operating systems rely on concepts invented for the Multics system, developed by

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