Stereo And Hi-fi Sound Recording

Magnetic tape also led to the development of the first practical Stereo and hi-fi sound recording systems, recording and reproducing high-fidelity stereophonic sound. With experiments with stereo sound recording dating back to the 1880s and later during the 1930s and 1940s, the many attempts for hi-fi sound recording were held back because of the synchronization problems.

The first main breakthrough in practical stereo and hi-fi sound recording was made by Bell Laboratories. In 1937 they used a practical system consisting of two-channel stereo. Making use of dual optical sound tracks on film, the movie studios were quick to follow and developed three-track and four-track stereo sound recording systems. Walt Disney's Fantasia, released in 1940, was the first commercially-released movie with a complete stereo and hi-fi sound recording.

Meanwhile, by 1943, German audio engineers working on magnetic tape, were said to have developed hi-fi sound recording system. Ampex in the late 1940s was the first to introduce the first commercial two-track tape recorders. Nevertheless, in spite of the availability of multi-track tape, stereo and hi-fi sound recording systems did not become the standard for commercial music recording for some years yet. The scenario changed after the late 1957.

Until the mid 1960s most pop singles were assorted into monophonic sound. Major pop releases were released in both mono and stereo. The early 1970s saw many Sixties pop albums which were made available only in stereo and were originally intended to be released only in mono, the so-called "stereo" version of these albums were made by simply separating the two tracks of the master tape. In the mid Sixties, as stereo and hi-fi sound recording systems became more popular, many of the old mono were re-mastered.

Stereo sound recording, also known as Stereophonic sound, is the replication of sound using two or more independent audio channels, through a balanced arrangement of loudspeakers so as to create the impression of sound being heard from various directions, as one is able to in natural hearing. Today, stereo and hi-fi sound recording systems are used in FM broadcasting, Digital Audio Broadcasting and in several television systems.

High fidelity or hi-fi sound recording is used to refer to high-quality reproduction of sound, using expensive equipment. There are minimal amounts of noise and distortion with an accurate frequency response.

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