Audio and video
One day in 1872, two young men had a heated argument in a California hotel.
One of them believed that the running horse’s hooves were in the air when he jumped. Another believes that when a horse runs, one hoof always touches the ground.
After hearing about the incident, photographer Mabridge from the UK decided to verify who was right and who was wrong through experiments. So, with the help of 24 cameras, he took 24 photos in a row and created the first “video” in the history of mankind.
Shortly thereafter, in 1877, the famous inventor Edison recorded the words to “Mary Had a Little Lamb” which he read aloud on his “cylinder phonograph.”
These few seconds of sound became the first audio in human history. As a result, human beings have officially entered the age of audio and video.
The development and evolution of audio and video technology.
As we all know, people have five senses, namely sight, hearing, smell, taste and touch. Through the five senses, we can perceive the existence of the external physical world and enjoy the beauty of real life.
In the long history of human beings, words and images are the main ways of recording and transmitting information. It was not until the appearance of the aforementioned audios and videos that the human way of recording information was upgraded to a higher and more concrete dimension.
In the early days of the birth of audio and video, they could only be stored on film and tape, with limited capacity and inconvenient storage and transportation.
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Until the 1970s and 1980s, with the continuing maturity of digital recording and camera technology, film and record companies began using digital methods for recording original materials and post-production, triggering a wave of innovation in recording technology. audio and video.
With the support of digital technology, audio and video editing has become more convenient and faster. The advent of digital media such as CDs, MDs, and DVDs not only greatly improves sound quality and picture quality, but also greatly expands storage capacity and reduces space occupation.
The world’s first CD player, the Sony CDP-101 (1982)The world’s first CD player, the Sony CDP-101 (1982)
In the 1990s, the large-scale popularization of personal PCs and the explosive development of the Internet once again stimulated the leap in audio and video technology and pushed mankind into the multimedia age.
During that period, the ancestors of the Internet were frantically uploading and downloading music in mp3 and wav formats, images in bmp and jpg formats, and movies in rm, mov, and avi formats. They are no longer limited to pure text interaction, but have turned to multimedia communication tools such as QQ and MSN.
