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SoundScriber
SoundScriber is a dictation machine introduced in 1945 by The SoundScriber Corp. (New Haven, Connecticut, United States). It records sound with a groove embossed into soft vinyl discs with a stylus. by Soundscriber's chief engineer, has technical details of the machines Similar competing recording technologies are the Gray Audograph and Dictaphone DictaBelt. The machine can record 15 minutes of dictation on each side of a thin (.01-inch) flexible 6-inch vinyl disc spinning at a rate of RPM, at a density of 200 grooves per inch. The discs originally cost about 10 cents each. The machine has two tonearms: a recording arm driven by a worm gear that creates the groove with a diamond stylus, and a pickup arm with a sapphire stylus for playback. A foot-operated playback/pause—and-reverse switch is used for transcribing. Unlike some other recording technologies of the time, the recording stylus creates the groove not by cutting the vinyl but by embossing (plastically deforming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictation Machine
A dictation machine is a sound recording device most commonly used to record Speech communication, speech for playback or to be typed into print. It includes digital voice recorders and tape recorder. The name "Dictaphone" is a trademark of the American Graphophone Company, but it has also become a common term for all dictation machines, as a genericized trademark. History Alexander Graham Bell and his two associates took Edison's tinfoil phonograph and modified it considerably to make it reproduce sound from wax instead of tinfoil. They began their work at Bell's Volta Laboratory in Washington, D.C.In 1879, and continued until they were granted basic patents in 1886 for recording in wax.Newville, Leslie JDevelopment of the Phonograph at Alexander Graham Bell's Volta Laboratory United States National Museum Bulletin, Smithsonian Institution, United States National Museum and the Museum of History and Technology, Washington, D.C., 1959, No. 218, Paper 5, pp.69-79. Retrieved fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Haven, Connecticut
New Haven is a city of the U.S. state of Connecticut. It is located on New Haven Harbor on the northern shore of Long Island Sound. With a population of 135,081 as determined by the 2020 United States census, 2020 U.S. census, New Haven is List of municipalities in Connecticut, the third largest city in Connecticut after Bridgeport, Connecticut, Bridgeport and Stamford, Connecticut, Stamford, the largest city in the South Central Connecticut Planning Region, Connecticut, South Central Connecticut Planning Region, and the principal municipality of Greater New Haven metropolitan area, which had a total population of 864,835 in 2020. New Haven was one of the first Planned community, planned cities in the U.S. A year after its founding by English Puritans in 1638, eight streets were laid out in a four-by-four Grid plan, grid, creating the "Nine Square Plan". The central common block is New Haven Green, the New Haven Green, a square at the center of Downtown New Haven. The Green is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gramophone Record
A phonograph record (also known as a gramophone record, especially in British English) or a vinyl record (for later varieties only) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove. The groove usually starts near the outside edge and ends near the center of the disc. The stored sound information is made audible by playing the record on a phonograph (or "gramophone", "turntable", or "record player"). Records have been produced in different formats with playing times ranging from a few minutes to around 30 minutes per side. For about half a century, the discs were commonly made from shellac and these records typically ran at a rotational speed of 78 rpm, giving it the nickname "78s" ("seventy-eights"). After the 1940s, "vinyl" records made from polyvinyl chloride (PVC) became standard replacing the old 78s and remain so to this day; they have since been produced in various sizes and speeds, most commonly 7-inch discs pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gray Audograph
The Gray Audograph was a dictation machine format introduced in 1945. It recorded sound by pressing grooves into soft vinyl discs. The Audograph recorded on thin vinyl discs of 15cm diameter, recording from the inside to the outside, the opposite of conventional gramophone records. Unlike conventional records, the disc was driven by a surface-mounted wheel. This meant that its recording and playback speed decreased toward the edge of the disc (like the Compact Disc and other digital formats), to keep a more constant linear velocity and to improve playing time, which was ten minutes. In 1950, Gray began to make a variant of the Audograph for AT&T AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the w ..., known as the Peatrophone. References External linksRestoring Gray Audograph reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DictaBelt
The Dictabelt, in early years and much less commonly also called a Memobelt, is an analog audio recording medium commercially introduced by the American Dictaphone company in 1947. Having been intended for recording dictation and other speech for later transcription, it is a write-once-read-many medium consisting of a thick transparent vinyl (according to a 1960s Dictaphone user manual: cellulose acetate butyrate) plastic belt wide and around. The belt is loaded onto a pair of metal cylinders, put under tension, then rotated like a tank tread. It is inscribed with an audio-signal-modulated helical groove by a stylus which is slowly moved across the rotating belt. Unlike the stylus of a record cutter, the Dictabelt stylus is blunt and in recording mode it simply impresses a groove into the plastic rather than engraving it and throwing off a thread of waste material. The Dictabelt system was popular, and by 1952, made up 90% of Dictaphone's sales. Dictabelts were more conv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonearm
A phonograph, later called a gramophone, and since the 1940s a record player, or more recently a turntable, is a device for the mechanical and analogue reproduction of sound. The sound vibration waveforms are recorded as corresponding physical deviations of a helical or spiral groove engraved, etched, incised, or impressed into the surface of a rotating cylinder or disc, called a '' record''. To recreate the sound, the surface is similarly rotated while a playback stylus traces the groove and is therefore vibrated by it, faintly reproducing the recorded sound. In early acoustic phonographs, the stylus vibrated a diaphragm that produced sound waves coupled to the open air through a flaring horn, or directly to the listener's ears through stethoscope-type earphones. The phonograph was invented in 1877 by Thomas Edison; its use would rise the following year. Alexander Graham Bell's Volta Laboratory made several improvements in the 1880s and introduced the graphophone, includi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylus
A stylus is a writing utensil or tool for scribing or marking into softer materials. Different styluses were used to write in cuneiform by pressing into wet clay, and to scribe or carve into a wax tablet. Very hard styluses are also used to Engraving, engrave metal, and the slate and stylus system is used to punch out dots to write in Braille. Styluses are held in the hand and thus are usually a narrow elongated shape, similar to a modern ballpoint pen. Many styluses are heavily curved to be held more easily. The word ''stylus'' is also used to describe Stylus (computing), computer styluses used to assist in navigating or providing more precision when using touchscreens. Etymology ''Stylus'' comes from the Latin —the spelling ''stylus'' arose from an erroneous connection with Greek (), 'pillar'.''Oxford Latin Dictionary'', s.v. "stilus" (2012). The Latin word had several meanings, including "a long, sharply pointed piece of metal; the stem of a plant; a pointed instrume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joan Crawford
Joan Crawford (born Lucille Fay LeSueur; March 23, 190? was an American actress. She started her career as a dancer in traveling theatrical companies before debuting on Broadway theatre, Broadway. Crawford was signed to a motion-picture contract by Metro-Goldwyn-Mayer in 1925. Initially frustrated by the size and quality of her roles, Crawford launched a publicity campaign and built an image as a nationally known flapper by the end of the 1920s. By the 1930s, Crawford's fame rivaled MGM colleagues Norma Shearer and Greta Garbo. Crawford often played hardworking, young women who find romance and financial success. These "rags-to-riches" stories were well received by Great Depression, Depression-era audiences and were popular with women. Crawford became one of Hollywood, Los Angeles, California, Hollywood's most prominent movie stars and one of the highest paid women in the United States, but her films began losing money. By the end of the 1930s, she was labeled "Box Office Pois ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sudden Fear
''Sudden Fear'' is a 1952 American film noir thriller film starring Joan Crawford and Jack Palance in a tale about a successful woman who marries a murderous man. Directed by David Miller, the screenplay by Lenore J. Coffee and Robert Smith was based upon the novel of the same name by Edna Sherry. Plot Myra Hudson (Crawford) is a successful Broadway playwright who rejects Lester Blaine (Palance) as the lead in her new play. Later, she meets him on a train bound for San Francisco, is swept off her feet, and after a brief courtship, marries him. Lester is unaware that Myra is making changes to her will, which will ensure he will inherit everything. She has begun dictating them into her personal dictating machine, but is interrupted when guests begin to arrive for the evening. She forgets to turn the machine off, and later, when Lester and his long-time lover, Irene Neves (Grahame), are in Myra's study, they find the original will, which stipulates that the bulk of her fortune ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audiovisual Introductions In 1945
Audiovisual (AV) is electronic media possessing both a sound and a visual component, such as slide-tape presentations, films, television programs, corporate conferencing, church services, and live theater productions. Audiovisual service providers frequently offer web streaming, video conferencing, and live broadcast services. The professional audio visual industry has companies that provide hardware, software and services. These organizations are commonly referred to as ''systems integrators'' and perform both the installation and integration of different types of AV equipment from multiple manufacturers into spaces to create the AV experience for the user or audience. Computer-based audiovisual equipment is often used in education, with many schools and universities installing projection equipment and using interactive whiteboard technology. Components Aside from equipment installation, two significant elements of audiovisual are wiring and system control. If either of thes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Storage
Sound recording and reproduction is the electrical, Mechanical system, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording. Acoustic analog recording is achieved by a microphone diaphragm that senses changes in atmospheric pressure caused by acoustics, acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as a phonograph record (in which a stylus cuts grooves on a record). In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to a varying magnetic field by an electromagnet, which makes a representation of the sound as magnetized areas on a plastic tape with a magnetic coating on it. Analog sound reproduction is the reverse process, with a large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
