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Dolby Surround
Dolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories, designed to decode soundtracks encoded with Dolby Surround. The terms Dolby Stereo and LtRt (''Left Total'', ''Right Total'') are also used to describe soundtracks that are encoded using this technique. Dolby Stereo—also known as Dolby MP (''Motion Picture'') or Dolby SVA (''stereo variable-area'')—was developed by Dolby in 1976 for analog cinema sound systems. The format was adapted for home use in 1982 as Dolby Surround when HiFi capable consumer VCRs were introduced. It was further improved with the Dolby Pro Logic decoding system after 1987. The Dolby MP Matrix was the professional system that encoded four channels of film sound into two. This track used by the ''Dolby Stereo'' theater system on a 35mm optical stereo print and decoded back to the original 4.0 Surround. The same four-channel encoded stereo track was largely left unchanged and made available to consumers as ''"Do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolby Pro Logic
Dolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories, designed to decode soundtracks encoded with Dolby Surround. The terms Dolby Stereo and LtRt (''Left Total'', ''Right Total'') are also used to describe soundtracks that are encoded using this technique. Dolby Stereo—also known as Dolby MP (''Motion Picture'') or Dolby SVA (''stereo variable-area'')—was developed by Dolby in 1976 for analog movie theater, cinema sound systems. The format was adapted for home use in 1982 as Dolby Surround when VCR#Stereo Sound and HiFi, HiFi capable consumer VCRs were introduced. It was further improved with the Dolby Pro Logic decoding system after 1987. The Dolby MP Matrix was the professional system that encoded four channels of film sound into two. This track used by the ''Dolby Stereo'' theater system on a 35mm optical stereo print and decoded back to the original 4.0 Surround. The same four-channel encoded stereo track was largely left unchanged a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolby Stereo
Dolby Stereo is a sound format made by Dolby Laboratories. It is a unified brand for two completely different basic systems: the Dolby SVA (stereo variable-area) 1976 system used with optical sound tracks on 35mm film, and Dolby Stereo 70mm noise reduction on 6-channel magnetic soundtracks on 70mm prints. Dolby SVA significantly improves the development of sound effects in films and theorization of sound design by Walter Murch. In 1982, it was adapted for home use as Dolby Surround when hi-fi capable consumer VCRs were introduced, and further improved in 1987 with the Dolby Pro Logic #Dolby_Surround/Dolby Pro Logic (home decoders), home decoding system. Dolby SVA Of the two, Dolby SVA is by far the more significant, bringing high-quality stereo sound within the reach of virtually every cinema. Though 6-track magnetic stereo had been used in Cinerama films since 1952, and Fox had introduced 4-track stereo magnetic sound as part of the Cinemascope, CinemaScope system in 1953, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audioholics
Audioholics is an audio/video (A/V) and home theater technology review site and Internet forum. The website publishes detailed technical reviews of commercial audio, video and other electronics equipment. Product of the Year Awards is Audioholics' awards program, highlighting staff picks for the best products reviewed each year. Winners are chosen each December and are announced in the annual Product of the Year Awards feature on the site. History Audioholics was founded by Gene DellaSala in 1999. DellaSala says the website was born after being frustrated with dishonest hardware specifications from certain manufacturers. Gene takes more of a "real world" approach to audio/video (A/V) performance reviews, with an emphasis on educating consumers. In the decade since 1999, Audioholics.com grew from an A/V hobby website to the world's most trafficked home theater audio and video website, with over 1.2 million monthly readers. Audioholics also maintains the largest and most engaged ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HiFi
High fidelity (hi-fi or, rarely, HiFi) is the high-quality reproduction of sound. It is popular with audiophiles and home audio enthusiasts. Ideally, high-fidelity equipment has inaudible noise and distortion, and a flat (neutral, uncolored) frequency response within the human hearing range. High fidelity contrasts with the lower-quality " lo-fi" sound produced by inexpensive audio equipment, AM radio, or the inferior quality of sound reproduction that can be heard in recordings made until the late 1940s. History Bell Laboratories began experimenting with various recording techniques in the early 1930s. Performances by Leopold Stokowski and the Philadelphia Orchestra were recorded in 1931 and 1932 using telephone lines between the Academy of Music in Philadelphia and the Bell labs in New Jersey. Some multitrack recordings were made on optical sound film, which led to new advances used primarily by MGM (as early as 1937) and Twentieth Century Fox Film Corporation (as ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haas Effect
Haas may refer to: Auto racing * Haas F1 Team Haas Formula LLC, competing as MoneyGram Haas F1 Team, is an List of Formula One constructors#Team's nationality, American-licensed Formula One racing team established by NASCAR Cup Series team owner Gene Haas in April 2014. The team made its ..., a 21st-century Formula 1 auto racing team * Haas Lola, a 20th-century Formula 1 auto racing team * Newman/Haas Racing, an Indycar auto racing team * Stewart-Haas Racing, a NASCAR auto racing team Companies and organizations * Haas Automation, a machine tool company * Haas Center for Public Service, of Stanford University in Stanford, California * Haas School of Business at the University of California, Berkeley * Haas Type Foundry, a Swiss manufacturer of foundry type Science and technology * Haas (rocket), a Romanian launch system * Haas effect, a psychoacoustic effect * Haloacetic acids, also called "HAAs" * de Haas–van Alphen effect, a quantum mechanical effect * Einst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Trends
Digital Trends is a Portland, Oregon-based tech news, lifestyle, and information website that publishes news, reviews, guides, how-to articles, descriptive videos and podcasts about technology and consumer electronics products. With offices in Portland, Oregon, New York City, Chicago, and other locations, Digital Trends is operated by Digital Trends Media Group, a media company that also publishes Digital Trends Español, focusing on Spanish speakers worldwide, and a men's lifestyle site The Manual. The site offers reviews and information on a wide array of products that have been shaped by technology. That includes consumer electronics products such as smartphones, video games and systems, laptops, PCs and peripherals, televisions, home theater systems, digital cameras, video cameras, tablets, and more. According to third-party web analytics provider SimilarWeb, the site received over 40 million visits per month . From 2014 to 2021, Digital Trends' editorial team was led by E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jim Fosgate
James M. Fosgate (December 5, 1937 – December 7, 2022) was an American inventor, engineer and businessman. The self-taught son of a television and radio repairman, Fosgate invented the first car amplifier in 1973 and founded Fosgate Electronics, now called Rockford Fosgate. After his departure from Rockford Fosgate in 1981, Fosgate remained active in the audio world, running Fosgate Laboratories and leading the team that created Dolby Pro Logic II. Fosgate was also the developer of one of the finest quadraphonic decoders, the TATE II 101A (see Stereo Quadraphonic for details), in collaboration with Peter Scheiber and Martin Willcocks, which was superseded by his 3601 decoder. Audio career Collaborating with four channel matrix pioneer Peter Scheiber early on gave Fosgate's company the edge to become one of the leaders in the Dolby Surround market. In 2003 Fosgate received an Emmy Award for the development of surround sound for television.''Stereophile ''Stereophile'' is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolby Laboratories
Dolby Laboratories, Inc. (Dolby Labs or simply Dolby) is a British-American technology corporation specializing in audio noise reduction, audio data compression, audio encoding/compression, spatial audio, and high-dynamic-range television (HDR) imaging. Dolby licenses its technologies to consumer electronics manufacturers. History Dolby Labs was founded by Ray Dolby (1933–2013) in London, England, in 1965. In the same year, he invented the Dolby noise-reduction system, Dolby Noise Reduction system, a form of audio signal processing for reducing the background hissing sound on cassette tape recordings. His first U.S. patent on the technology was filed in 1969, four years later. The method was first used by Decca Records in the UK. After this, other companies began purchasing Dolby’s A301 technology, which was the professional noise reduction system used in recording, motion picture, broadcasting stations and communications networks. These companies include BBC, Pye Records ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Servomechanism
In mechanical and control engineering, a servomechanism (also called servo system, or simply servo) is a control system for the position and its time derivatives, such as velocity, of a mechanical system. It often includes a servomotor, and uses closed-loop control to reduce steady-state error and improve dynamic response. In closed-loop control, error-sensing negative feedback is used to correct the action of the mechanism. In displacement-controlled applications, it usually includes a built-in encoder or other position feedback mechanism to ensure the output is achieving the desired effect. Following a specified motion trajectory is called servoing, where "servo" is used as a verb. The ''servo'' prefix originates from the Latin word ''servus'' meaning slave. The term correctly applies only to systems where the feedback or error-correction signals help control mechanical position, speed, attitude or any other measurable variables. For example, an automotive power win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Betamax
Betamax (also known as Beta, and stylized as the Greek letter Beta, β in its logo) is a discontinued consumer analog Videotape, video cassette recording format developed by Sony. It was one of the main competitors in the videotape format war against its primary rival, VHS. Betamax was introduced in Japan on May 10, 1975, and launched in the United States later that year. Betamax was widely regarded, in part due to Sony's marketing, as offering superior picture quality compared to VHS. Its initial β1 speed provided 250 horizontal lines of resolution, compared to VHS's 240 lines, but early Beta tapes were limited to 60 minutes of recording time, making them impractical for recording movies or sporting events. To address this, Sony introduced the β2 speed, which doubled recording time to two hours but reduced resolution, negating its technical advantage. VHS's commercial success over Betamax was also driven by JVC's strategy of licensing the format broadly, spurring competition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
