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Encyclopedia > Analog recording

Analog recording is the first way humans were able to store sounds for later playback. It was first successfully used by Thomas Alva Edison. A schematic representation of hearing. ... Thomas Alva Edison (February 11, 1847 - October 18, 1931) was an inventor and businessman who developed many important devices. ...


The modern examples of the analog audio recording are:

I was also the first way that television pictures were able to be stored stored without the need for photographing the reproduced image on a monitor, developing the film and scanning it on playback. A gramophone record, (also vinyl record, phonograph record or simply record) is an analogue sound recording medium: a flat disc rotating at a constant angular velocity, with inscribed spiral grooves in which a stylus or needle rides. ... Magnetic tape is a non-volatile storage medium consisting of a magnetic coating on a thin plastic strip. ... For the meaning of cassette in genetics, see cassette (genetics). ...


The analog recording method stored sounds as a continual wave in the media, rather than the discrete numbers used in digital recording. The wave was stored as a physical texture on a phonograph record, or a fluxuation in a magnetic field strength in a magnetic tape recording. In digital recording, the analog signal of a motion-picture/sound is converted into a stream of discrete numbers, representing the changes in air pressure (chroma and luminace values in case of video) through time; thus making an abstract template for the original sound. ...


One of the drawback of many analog recordings was the poor fidelity. It is difficult to filter out noise introduced into the recording media. Repeatedly playing a gramaphone record, for example, would introduce wear that made the original recording more difficult to hear over the noise level. Good-quality equipment and careful removal of dust would reduce, but not eliminate, this problem. For the financial services company, see Fidelity Investments. ...


  Results from FactBites:
 
Sound recording - Wikipedia, the free encyclopedia (4799 words)
Instead of recording by varying the depth of the groove (vertically), as with the phonograph, the vibration of the recording stylus was across the width of the track (horizontally).
Magnetic recording was demonstrated in principle as early as 1898 by Valdemar Poulsen in his telegraphone.
An electrical signal, which is analogous to the sound that is to be recorded, is fed to the recording head, inducing a pattern of magnetization similar to the signal.
Analog recording - Wikipedia, the free encyclopedia (212 words)
Analog recording is the first way humans were able to store sounds for later playback.
The analog recording method stored sounds as a continual wave in the media, rather than the discrete numbers used in digital recording.
One of the drawback of many analog recordings was the poor fidelity.
  More results at FactBites »

 
 

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