Introduction - Text 2
In the 1950s, tape recorders began to be used for recording sound. This afforded more flexibility. Lightweight, synchronized sound recording equipment became widespread after 1962. Reproducing sound using magnetic tracks began with 70 mm film. In the 1970s and 80s, sound mixing on magnetic tracks achieved great precision in the work of sound designers such as Walter Murch. Most often, it was possible to mix dozens of different sounds on two tracks, as stereophonic sound had begun development in the 1970s.
After the age of magnetic sound came the age of digital sound. Music began to be recorded and sold on digital media (CDs) in 1982. It was not until digital sound systems for movie theatres were developed (LC Concept, 1990; Dolby Digital, 1992; SDDS and DTS, 1993) that the use of digital sound became widespread on film sets. In the mid-1990s, movie theatres began to be equipped with multi-track sound (5.1, then 7.1, then Atmos in 2012).
