CHAPTER 16 Digital Television and Radio n Note Do not read this chapter in isolation. You will need first to have read and understood the material in Chapters 11 and 12. n Compression Digital television and audio signals were in use for studio recording and editing well before broadcasting of such signals became possible. In closed circuits, bandwidth is of little consequence, but broadcasting is bound by the existing frequency bands. What made broadcasting of digital television and radio possible was the development of compression methods, and in particular the MPEG standards. Chapter 12 has already outlined the compression methods that are used, classed either as lossy