Digital Signal Processing Reference
In-Depth Information
Digital Signal Processing in Home
Entertainment
Konstantinos Konstantinides
Abstract
In the last decade or so, audio and video media switched from analog
to digital and so did consumer electronics. In this chapter we explore how digital
signal processing has affected the creation, distribution, and consumption of digital
media in the home. By using “photos”, “music”, and “video” as the three core media
of home entertainment, we explore how advances in digital signal processing, such
as audio and video compression schemes, have affected the various steps in the
digital photo, music, and video pipelines. The emphasis in this chapter is more on
demonstrating how applications in the digital home drive and apply state-of-the art
methods for the design and implementation of signal processing systems, rather than
describing in detail any of the underlying algorithms or architectures, which we
expect to be covered in more detail in other chapters. We also explore how media
can be shared in the home, and provide a short review the principles of the DLNA
stack. We conclude with a discussion on digital rights management (DRM) and a
short overview of the Microsoft Windows DRM.
1
Introduction
Only a few years ago, the most complex electronic devices in the home were
probably the radio and the television, all built using traditional analog electronic
components such as transistors, resistors, and capacitors. However, in the late 1990s
we witnessed a major change in home entertainment. Media began to go digital
and so did consumer electronics, like cameras, music players, and TVs. Today,
a typical home may have more than a half-dozen electronic devices, built using
both traditional electronic components and sophisticated microprocessors or digital
signal processors. This chapter will try to showcase how digital signal processing
