Digital coaxial cable and the advantages of digital audio
When it comes to digital audio, you have two options when it comes to the choice of cables: cables digital audio or digital coaxial cables. Any of these cables will let you configure your home audio or theater system, high-quality digital signals are transmitted digital audio rather than analog form. The quality will always offer much better than the RCA audio cables.
What are digital Coaxial cable and how they work?
Like other coaxial cables (eg cable television cable that connects to your TV), these cables use the same principle basics. They have an inner conductive layer that is usually copper. This layer is surrounded by an outer conductor with rubber insulation surrounding the cable outer. The signal digital audio travels through the inner conductor while the outer conductor (usually a foil) to avoid interference and losses.
Unlike the RF coaxial cables that transmit both audio and video, digital coaxial cable has one purpose only: to transmit digital audio between the two components. Obviously, this function only provides much higher quality via RF coaxial cables, minimizing signal loss and interference.
What are the advantages of digital coaxial cables?
Besides the much higher quality than the digital coaxial cable provides, has other benefits too. In a typical scenario, a digital signal of a component, such as a DVD player is first sent to a digital to analog (DAC) which, as its name suggests, becomes digital signal to analog. This analog signal travels through the medium (ie cable) with the other component (eg a TV or speakers) which has an analog to digital converter (ADC), which converts this signal to analog. Needless to say, this double signal conversion from digital to analog and again results in significant loss of quality.
With a digital audio cable (ie both digital coaxial cable and optical audio cable digital), audio signal can travel through a digital medium, thus saving the use of the DAC and ADC. Thus, the signal can bypass the receptor and deliver a clear and digital quality.
You can find these cables in almost all modern entertainment devices, from home theater systems to DVD players to HDTVs.
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