With the advent of audio CDs and the proliferation of SoundBlaster cards for personal computers, the techniques behind digital audio have come to the forefront. Although simple in concept, the digitisation of analogue signals, like audio, presents its own set of problems to be overcome.
Digital audio has several advantages over analogue audio:
• Digital recordings do not degrade with re-recording. Each copy is an exact reproduction of the original. At the time of recording, the copy can be compared to the original and any errors detected and sunsequently corrected. This does require access to the original recording however. With a digital recording simply being a stream of numbers, it is possible to protect the recording’s integrity ...
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