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High fidelity (often shortened to Hi-Fi or HiFi) is the high-quality reproduction of sound. [1] 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 .
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 system in 1953, the technology had proved to be expensive and unreliable.
High-end audio is a class of consumer home audio equipment marketed to audiophiles on the basis of high price or quality, and esoteric or novel sound reproduction technologies. The term can refer simply to the price, to the build quality of the components, or to the subjective or objective quality of sound reproduction. [1] [2]
Audiophiles often prioritize high-quality music formats and specialized equipment over more convenient but lower quality options, such as MP3s or low-cost headphones. The term " high-end audio " is used to describe the playback equipment favored by audiophiles, which can be purchased from specialized retailers.
The 'Music' category is merely a guideline on commercialized uses of a particular format, not a technical assessment of its capabilities. For example, MP3 and AAC dominate the personal audio market in terms of market share, though many other formats are comparably well suited to fill this role from a purely technical standpoint.
A good example is the FM stereo multiplex decoder module. [9] Fisher was the first to introduce stereo receivers with four channels. These innovations were brief and occurred in the mid-1970s which some [who?] consider The Second Golden Age of High Fidelity. Like many new concepts of the time such as Beta Format and VHS, there were a number of ...