Sound on Disc

Sound panel: From the beginning until the death from Kinetophone to Vitaphone, the sound format on the disc dominates the epoch-making stage of the sound in the movie. For the first time in history, people can hear the sound synchronized with the picture on the screen, the revolution began - the sound movie is here to stay. The sound format on the disc helped to create the classic of many Hollywood transceivers, including jazz singers and song fool. However, as technology advances, viewers and exhibitors begin to be more harsh, and another form, the sound of the movie, will soon become the ruler of the movement of the movie.

Sound technology originally developed in the early 20th century began commercialization in the late 1920s and eventually replaced the sound system on the disk. In a sound movie, sound waves are converted to light waves and then filmed on the film itself. This allows you to attach photos and soundtracks that are printed with photos and read by special projectors on the film. In popular sentences about psychology, division of mind including all thoughts, memory, impulses, desires, emotions etc. is not a subject of human perception or control, but often to conscious ideas and actions (nouns) It affects. The surrealists gained a lot of inspiration from the psychoanalist Sigmund Freud's dream theory and subconscious work.

This seems like an old technology, but the general technical method of reading music through material CDs like vinyl records and CDs is the main consumption pattern for the next 125 years. Some of the later inventions appeared soon, but they left their name, but the record turntable played a basic role throughout the times. The concept of radio as a mass communication and music medium, invented at the turn of the 20th century and used for the first time in Morse power communication code communication, was broadcast in 1920. In 1920, there were two radio stations in the country. In the second year, there were over 600 people.

When the engineers in Germany and the US showed some systems in the mid 1920's, synchronized sound appeared in the movie. In these systems, the sound from the disc is mechanically consistent with the film. This method was immediately replaced by a method to record sound on the film. The movie sound system is still in use. Modern acoustics In 1878, Sir Rayleigh, a British physicist, described many important acoustical principles in his book "Sound Theory". Many of the characteristics of sounds have existed for a long time, but acoustic science is still expanding to new fields. In the 1940 's, physicist physicist and physicist Georg von Bekesy showed how the ear distinguishes the sound. In the 1960's, concerns about the physical and psychological impact of noise have led to rapid expansion of the field of environmental acoustics.