Good vibrations

Jacobsmeyer, Jay M.
February 2009
Urgent Communications;Feb2009, Vol. 27 Issue 2, p22
Trade Publication
The article focuses on digital video transmissions. Channel encoding refers to the use of controlled redundancy to determine and correct errors from the communications channel while source encoding means the compression of the original analog or digital information to be transmitted over the channel. The standards for compressing audio include low-bit rate vocoders used by Project 25 and cellular radios that run between 4 and 13 bytes per second.


Related Articles

  • Vision mixers: A life. Frost, Tim // TVB Europe;Feb97, Vol. 6 Issue 1, p37 

    Discusses the pressure faced by analog vision mixers in the light of the availability of low-cost digital sources and transmissions in the video production market. Importance of speed in post-productions; Live and post-productions as diverging markets for vision mixers; Trend in the European...

  • Is Retro Technology In? O'Rourke, Jennifer // Videomaker;Mar2010, Vol. 24 Issue 9, p6 

    The author discusses analog in comparison to digital audio and video technologies like compact discs (CDs) and digital video disc (DVD) cameras.

  • Shift to Digital Girds Camcorder Pricing. Scoblete, Greg // TWICE: This Week in Consumer Electronics;7/11/2005, Vol. 20 Issue 14, p28 

    This article looks at the status of the camcorder market in the U.S. in 2005. Camcorder unit sales Camcorder unit sales while consumers continue their steady migration toward digital products, especially DVD camcorders, in increasing numbers, according to camcorder makers. According to Linda...

  • SINCE YOU ASKED.  // SDM: Security Distributing & Marketing;Apr2010, Vol. 40 Issue 4, p81 

    The article focuses on the application of digital video recorders (DVRs) and network video recorder (NVRs) on video systems and analog cameras. It states that DVRs cannot use analog cameras but they can handle large amount of video recording due to their maximum storage capacity. Moreover, DVRs...

  • INTELLIGIBILITY OF SELECTED RADIO SYSTEMS IN THE PRESENCE OF FIREGROUND NOISE: TEST PLAN AND RESULTS. Atkinson, J. David; Catchier, A. Andrew // Journal of Communications Research;2011, Vol. 3 Issue 4, p357 

    The article discusses a study to measure the intelligibility of radio communication systems operating in several high background-noise environments usually encountered by firefighters including no mask fire truck pump panel, with mask chainsaw cutting wood, and no background noise. It says that...

  • Riding the wave of wireless data. Hinke, Robert // Electronics Weekly;1/16/2002, Issue 2035, p33 

    Forecasts the role of analog technology in the widespread penetration of wireless data to the consumer market in 2002. Evolution of existing wide and personal area networks; Predictions on wireless communication devices which will hit the market in 2002; Forecast on the availability of...

  • DWDM analog transport.  // CED;Jul2007, Vol. 33 Issue 7, p46 

    The article evaluates the DWDM analog transport system from InnoTrans Communications.

  • Editors' Notes. Wayne, Scott // Analog Dialogue;2008, Vol. 42 Issue 4, p2 

    The article discusses various reports published within the issue, including one on the advantage of femtocell wireless device, one by Newton Leif and Niku Chen on the uses and history of multiplier topologies, and one on the ways to document and stimulate proprietary wireless system.

  • Digital vs. Analog. Robertson, Donald F. // Satellite Broadband;Oct2001, Vol. 2 Issue 10, p34 

    Compares digital transmission with analog transmission. Primary reason for the invention of digital; Key advantage of digital transmission; Potential disadvantage of digital technology for the satellite service provider.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics