Aspects of this topic are discussed in the following places at Britannica.
As is noted in Analog-to-digital conversion, voice signals, as well as audio and video signals, are inherently analog in form. In most modern systems these signals are digitized prior to transmission, but in some systems the analog signals are still transmitted directly without converting them to digital form. There are two commonly used methods of modulating analog signals. One technique,...
...or value, several thousand times a second and assigns numerical values in the form of binary digits to its amplitude at any given instant. A typical digital recording system is equipped with an analog-to-digital converter that transforms two channels of continuous audio signals into digital information, which is then recorded by a high-speed tape or disc machine. The system uses a...
In transmission of speech, audio, or video information, the object is high fidelity—that is, the best possible reproduction of the original message without the degradations imposed by signal distortion and noise. The basis of relatively noise-free and distortion-free telecommunication is the binary signal. The simplest possible signal of any kind that can be employed to transmit messages,...
Basic-steps-in-analog-to-digital-conversion-An-analog-signalBasic steps in analog-to-digital conversion[Credits : Encyclopædia Britannica, Inc.]
Analog-multiplexing-as-employed-in-the-North-American-telephone-systemAnalog multiplexing, as employed in the North American telephone system[Credits : Encyclopædia Britannica, Inc.]
Link to this article and share the full text with the readers of your Web site or blog-post.
If you think a reference to this article on "analogue-to-digital conversion" will enhance your Web site,
blog-post, or any other web-content, then feel free to link to this article,
and your readers will gain full access to the full article, even if they do not subscribe to our service.
You may want to use the HTML code fragment provided below.
We welcome your comments. Any revisions or updates suggested for this article will be reviewed by our editorial staff. Contact us here.
Regular users of Britannica may notice that this comments feature is less robust than in the past. This is only temporary, while we make the transition to a dramatically new and richer site. The functionality of the system will be restored soon.