Definition of Dolby Digital

Dolby Digital is the commercial name that receives a series of technology audio compression, reduction of the size of audio files, precisely developed by the Dolby Labs.
The Dolby Labs is a company that is settled in the USA and that specializes in the development of techniques and functions that tend to improve the quality of systems storage audio, whether digital or analog. Although it was founded by Ray Dolby in England in 1965, later, in 1976 he would move completely to the United States.

Meanwhile, the Dolby Digital AC-3 is the most common version of the aforementioned technology, containing up to a total of six sound channels, five of them being full-bandwidth 20 Hz for range speakers. traditional and an exclusive output channel for those low frequency channels. The Format Dolby Digital AC-3 allows the use of Stereo and Mono.

His functioning It consists in the elimination of all those parts of the original sound, which was encoded analogically and which cannot be perceived through the human being's ear. In this way, what is achieved is that the information is of a smaller size and therefore it will occupy much less space.

Once the original wave has been compressed, the addition of new information is facilitated, which before, in the original state, was not possible due to the enormous size. These options include the ability to add more audio channels, audio labels, language of the audio, information to correct errors, and for each channel you can add information that will make the audio sound almost with the same fidelity proposed by your Author, among others.