Record

By: Alberta Caroline Gyamfi.

The history of recording • The Technologies of Sound Recording: Start

Here • The following overview is for those

interested in the technical side of sound recording's history. Actually, that is this site's focus. Not every machine invented to record sound is represented here, but most of the basic technologies are covered. First, some definitions and general comments. Sound recording began before the phonograph with scientific devices for studying sound waves. Later it was adapted to allow both recording and reproducing. This opened the door to the most familiar forms of sound recording; the technologies for recording and reproducing music.

Print

Print What is printing- Printing is a process for reproducing text and image, typically with ink on paper

using a printing press. Woodblock printing Woodblock printing is a technique for printing text, images or patterns that was used widely

throughout East Asia. It originated in China in antiquity as a method of printing on textiles and later on paper. As a method of printing on cloth, the earliest surviving examples from China date to before 220 AD, and from Roman Egypt to the 4th century.

Movable type is the system of printing and typography using movable pieces of metal type, made by casting from matrices struck by letter punches. Movable type allowed for much more flexible processes than hand copying or block printing.

The rotary printing press was invented by Richard March Hoe in 1843. It uses impressions curved around a cylinder to print on long continuous rolls of paper or other substrates. Rotary drum printing was later significantly improved by William Bullock.

Offset printing is a widely used printing technique where the inked image is transferred (or "offset") from a plate to a rubber blanket, then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier on which the image to be printed obtains ink from ink rollers, while the non-printing area attracts a film of water, keeping the non-printing areas ink-free.

Before the invention of newspapers in the early 17th century, official government bulletins were circulated at times in some centralized empires.

In Ancient Rome, Acta Diurna, or government announcement bulletins, were made public by Julius Caesar. They were carved in metal or stone and posted in public places.

A newspaper is a regularly scheduled publication containing news, information, and advertising, usually printed on relatively inexpensive, low-grade paper such as newsprint. By 2007 there were 6580 daily newspapers in the world selling 395 million copies a day.

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Audio

Dictaphone was an American company, a producer of dictation machines—sound recording devices most commonly used to record speech for later playback or to be typed into print.

MPEG-1 or MPEG-2 Audio Layer 3 (or III),[4] more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players.

Web based.

Webcam • Early development• First developed in 1991, a webcam was pointed at the Trojan Room coffee pot in the

Cambridge University Computer Science Department. The camera was finally switched off on August 22, 2001. The final image captured by the camera can still be viewed at its homepage. The oldest webcam still operating is Fog Cam at San Francisco State University, which has been running continuously since 1994.

• Webcams: A webcam is a video camera which feeds its images in real time to a computer or computer network, often via USB, ethernet or Wi-Fi.

• Their most popular use is the establishment of video links, permitting computers to act as videophones or videoconference stations. This common use as a video camera for the World Wide Web gave the webcam its name. Other popular uses include security surveillance and computer vision.