Daniela Castellanos RECORDED AUDIO

Phonoautograph

1857

Created by Leon Scott
It was the first to record sounds in a visible medium.

Phonograph

1877

Created by Thomas Edison
It was the first artifact capable of recording and reproducing sound.
It engraved on a cylinder

Electrical recording: the microphone

1878

Created by David Edward Hughes.
Was used to convert the sound into an electrical signal that was later amplified to be heard.

Gramophone

1887

Created by Emile Berliner
It was the first sound recording and reproduction system to use a flat disc.

Optical recording technology

1920

The audio signal was graphically recorded on photographic film.

Vinyl disc

1940

Is an analog sound storage medium in the form of a polyvinyl chloride disc, which is fluted into a modulated spiral shape

Open coil tape recorder

1940

Used to make long-lasting recordings.
It allows sounds to be recorded on a magnetic support attached to a plastic tape by processing electrical signals from microphones.

Cassette

1962

Created by Philips.
Is a format for recording sound or video on magnetic tape.

Microcassette

1969

Created by the company Olympus.
It is a magnetic tape sound recording format, which works just like a normal cassette, only it is much smaller.

CD (compact disc)

1979

Created by Philips and Sony.
Is an optical disc used to store data in digital format, consisting of any type of information

MP3

1986

Created by the scientists Brandenburg,Popp and Grill.
Is a digital audio compression format that uses a lossy algorithm to achieve a smaller file size.
It was first used in 1995.