Chapter 11

Digital Signal Processing Using General-Purpose Processors

Digital signal processing is a distinct subset within the broader field of signal processing. Digital signal processing (DSP) is concerned with the digital representation of signals and the subsequent transformation of these signals with software or digital hardware implementations of signal processing algorithms. DSP techniques are applied to a wide range of applications in everyday use—audio codecs such as the ubiquitous MP3, speech codecs used in your cell phone such as the Adaptive Multi-Rate Audio Code (AMR), signal processing implementations of the physical layers of communications technologies such as WiMAX™ or 3G networks, medical ultrasound applications—the list is ...

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