985 384-768 KbS Live Broadcast 20-20,000 Hz 48 KHz 16-20 AES 2/3-1985 192-384 Kbs 20-20,000 Hz 48 KHz 16-20 MPEG2 192-384 Kbs Video Sub-Sample Frame Rate Digitized NTSC ~6 Mhz 13.5 MHz MPEG2 MP@ML 29.94 SMPTE 259 10-12 Mbs Digitized PAL ~8 Mhz 13.5 MHz MPEG2 MP@ML SMPTE 259 10-12 Mbs SD 720x480/576 ~15 Mhz 27 MHz MPEG2 MP@ML 29.94 SMPTE 259 10-50 Mbs HD1920x1080 ~30 Mhz 74.25 MHz 29.94 SMPTE 292 30-60 Mbs TABLE 1-4 Content Delivery and Other Applications Application Analog B/W Sample Rate Bits / Sample Coding Scheme Interface Payload Bitrate Audio & Speech Coding Channels 176 Kbs Digital Audio Player 176 Kbs Dolby Surround 448 Kbs Dolby Stereo PC Music (Stereo) 22.1 KHz 88.4 KBS PC Music (Mono) 10.5 KHz 16-20 AES 2/3-1985 10 Kbs Telephone Speech 8 KHz 16-20 ITU G.703 64 Kbs Internet Speech 2 KHz ITU G-723 16 Kbs Audio Conference Video Frame Rate Digital STL MPEG2MP@ML 29.94 10-34 Mbs MPEG1/2 29.94 4-6 Mbs PC Based Training MPEG1 15-30 1-2 Mbs Video Conferencing ITU H.263 15-20 384-768 Kbs PRACTICAL IP AND TELECOM FOR BROADCAST ENGINEERING AND OPERATIONS References 1. Telarc, International, Telarc Revisits the "Blast from the Past" with New DSD Technology, Newly Recorded Cannons, Carillons and Choruses http://www. telarc.com/gscripts/title.asp?gsku=0541 2. Author Unknown. Dictionary of Internetworking Terms and Acronyms. Indianapolis: Cisco Press, 2001. 3. Held, Gilbert. Dictionary Of Communications Technology: Terms, Definitions and Abbreviations. Second Edition, New York: John Wiley & Sons, 1995. 4. Newton, Harry. Newton's Telecom Dictionary. 18th Updated and Expanded Edition, Gilroy, CA: CMP Books, 2000. 5. Luther, Arch C. Digital Audio and Video. Boston: Artech House, 1997. 6. Luther, Arch C. Video Camera Technology. Boston: Artech House, 1998. 7. Robin, Michael and Poulin, Michel. Digital Television Fundamentals: Design and Installation of Video and Audio Systems, New York: McGraw-Hill, 1998. INTERNET AND TELECOM: A BRIEF HISTORY Alexander Graham Bell is credited with inventing the telephone sometime after Sa