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Digital recording and transmission principles

Recording and transmission are quite different tasks, but they have a great deal in common and have always been regarded as being different applications of the same art. Digital transmission consists of converting data into a waveform suitable for the path along which it is to be sent. Digital recording is basically the process of recording a digital transmission waveform on a suitable medium. Although the physics of the recording or transmission processes are unaffected by the meaning attributed to signals, digital techniques are rather different from those used with analog signals, although often the same phenomenon shows up in a different guise. In this chapter the fundamentals of digital recording ...

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