PREFACE
This chapter by Dr Craig Richardson addresses the important and growing fi eld of Digital Signal Processing (DSP). When digital audio began for most of us, with the introduction of the CD in 1982, it was certain that the data on the disc would be converted from the digital to the analog domain at once, that it would leave the CD player in an analog format which would be applied to the input of a conventional preamplifi er, and that any processing such as tone control or level adjustment would also be carried in the analog domain.
Today these simple processes are often carried out in the digital domain, but there is also an important set of audio functions that can only be practically carried out there. A pure time-delay of almost ...
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