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Nagra
Nagra is a brand of portable audio recorders produced from 1951 in Switzerland. Beginning in 1997 a range of high-end equipment aimed at the audiophile community was introduced, and Nagra expanded the company’s product lines into new markets. Originally a product of the Kudelski Group, Nagra recorders are now developed, produced and sold by independently-owned company ''Audio Technology Switzerland S.A.'', based in Romanel-sur-Lausanne. History The machines were initially designed by Polish inventor Stefan Kudelski, and his company won numerous technical awards for their precision and reliability. Nagra means " twill record" in Polish, Kudelski's mother language. Nagra-brand tape recorders were the ''de facto'' standard sound recording systems for motion picture and (non-video) single-camera television production from the 1960s until the 1990s. Synchronization Originally, a physical sync lead tethered the Nagra recorder to the camera (putting a pulse from the camera on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kudelski Group
Kudelski SA () is a Swiss company that sells digital television access and management systems, cybersecurity solutions, Internet of Things products, and public infrastructure. The company is headquartered in Cheseaux-sur-Lausanne. Kudelski's first successful product was the Nagra tape recorder, developed by founder and Polish researcher Stefan Kudelski. André Kudelski, the son of founder Stefan Kudelski, became the chief executive officer in 1991. The rest of the executive board includes chief financial officer Mauro Saladini, chief operating officer Morten Solbakken, and executive vice president Nancy Goldberg. History Kudelski Group was founded in 1951 by Stefan Kudelski, while he was an engineering student at a Swiss university. The company's first product was the Nagra I, a reel-to-reel tap recorder, which weighed 11 pounds and measured 5"x7"x12" (roughly the size of a shoe box). It was succeeded by the Nagra II in 1953, which improved sound quality with additional mechani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefan Kudelski
Stefan Kudelski (27 August 1931 – 26 January 2013) Nagra was a Polish audio engineer known for creating the series of professional audio recorders. Life and career Stefan Kudelski was born in into a family with background. In September 1939 the family fled during the Nazi German and Soviet |
Tape Recorder
An audio tape recorder, also known as a tape deck, tape player or tape machine or simply a tape recorder, is a sound recording and reproduction device that records and plays back sounds usually using magnetic tape for storage. In its present-day form, it records a fluctuating signal by moving the tape across a tape head that polarizes the magnetic domains in the tape in proportion to the audio signal. Tape-recording devices include the reel-to-reel tape deck and the cassette deck, which uses a cassette for storage. The use of magnetic tape for sound recording originated around 1930 in Germany as paper tape with oxide lacquered to it. Prior to the development of magnetic tape, magnetic wire recorders had successfully demonstrated the concept of magnetic recording, but they never offered audio quality comparable to the other recording and broadcast standards of the time. This German invention was the start of a long string of innovations that have led to present-day mag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reel To Reel
Reel-to-reel audio tape recording, also called open-reel recording, is magnetic tape audio recording in which the recording tape is spooled between reels. To prepare for use, the ''supply reel'' (or ''feed reel'') containing the tape is placed on a spindle or hub. The end of the tape is manually pulled from the reel, threaded through mechanical guides and over a tape head assembly, and attached by friction to the hub of the second, initially empty ''takeup reel''. Reel-to-reel systems use tape that is wide, which normally moves at . All standard tape speeds are derived as a binary submultiple of 30 inches per second. Reel-to-reel preceded the development of the compact cassette with tape wide moving at . By writing the same audio signal across more tape, reel-to-reel systems give much greater fidelity at the cost of much larger tapes. In spite of the relative inconvenience and generally more expensive media, reel-to-reel systems developed in the early 1940s remained popu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Audio Stationary Head
The Digital Audio Stationary Head or ''DASH'' standard is a reel-to-reel, digital audio tape format introduced by Sony in early 1982 for high-quality multitrack studio recording and mastering, as an alternative to analog recording methods. DASH is capable of recording two channels of audio on a quarter-inch tape, and 24 or 48 tracks on tape on open reels of up to 14 inches. The data is recorded on the tape linearly, with a stationary recording head, as opposed to the DAT format, where data is recorded helically with a rotating head, in the same manner as a VCR. The audio data is encoded as linear PCM and boasts strong cyclic redundancy check (CRC) error correction, allowing the tape to be physically edited with a razor blade as analog tape would, e.g. by cutting and splicing, and played back with no loss of signal. In a two-track DASH recorder, the digital data is recorded onto the tape across nine data tracks: eight for the digital audio data and one for the CRC data; th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monaural
Monaural or monophonic sound reproduction (often shortened to mono) is sound intended to be heard as if it were emanating from one position. This contrasts with stereophonic sound or ''stereo'', which uses two separate audio channels to reproduce sound from two microphones on the right and left side, which is reproduced with two separate loudspeakers to give a sense of the direction of sound sources. In mono, only one loudspeaker is necessary, but, when played through multiple loudspeakers or headphones, identical signals are fed to each speaker, resulting in the perception of one-channel sound "imaging" in one sonic space between the speakers (provided that the speakers are set up in a proper symmetrical critical-listening placement). Monaural recordings, like stereo ones, typically use multiple microphones fed into multiple channels on a recording console, but each channel is " panned" to the center. In the final stage, the various center-panned signal paths are usually mixed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Secret Service
The United States Secret Service (USSS or Secret Service) is a Federal law enforcement in the United States, federal law enforcement agency under the United States Department of Homeland Security, Department of Homeland Security charged with conducting criminal investigations and protecting U.S. political leaders, their families, and visiting heads of state or government. United States Department of the Treasury#2003 reorganization, Until 2003, the Secret Service was part of the United States Department of the Treasury, Department of the Treasury, as the agency was founded in 1865 to combat the then-widespread Counterfeit United States currency, counterfeiting of U.S. currency. Primary missions The Secret Service is mandated by United States Congress, Congress with two distinct and critical national security missions: protecting the nation's leaders and safeguarding the financial and critical infrastructure of the United States. Protective mission The Secret Service is tasked w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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