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Chapter 1: Introduction > 1.3 Fundamentals of Digital Signal Processing

1.3 Fundamentals of Digital Signal Processing

The fundamentals of digital signal processing consist of the description of digital signals—in the context of this book we use digital audio signals—as a sequence of numbers with appropriate number representation and the description of digital systems, which are described by software algorithms to calculate an output sequence of numbers from an input sequence of numbers. The visual representation of digital systems is achieved by functional block diagram representations or signal flow graphs. We will focus on some simple basics as an introduction to the notation and refer the reader to the literature for an introduction to digital signal processing [ME93, Orf96, Zöl05, MSY98, Mit01].

1.3.1 Digital Signals


  

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