An IIR (Infinite Impulse Response) filter is a foundation element in Digital Signal Processing (DSP). It is one of two types of digital filters used in DSP applications and is an alternative to Finite Impulse Response (FIR) filters. The response in IIRs is considered infinite since there is feedback in the filter and they may …
DVI stands for Digital Visual Interface, it delivers uncompressed video signals from the device to HDTV, digital monitors and DLP projectors. DVI can be found on DVD players (both high definition and standard), computer video cards and many cable and satellite boxes. DVI is a fairly new connection standard being used and can deliver high …
Satellite TV works by broadcasting video and audio signals from geostationary satellites to satellite dishes on the Earth’s surface. These geostationary satellites orbit the earth in a region of space known as the Clarke Belt, which is approximately 22,300 miles above the equator. Each of these satellites carries a number of transponders. These transponders each …
When properly cared for, an audio cassette tape can last 30 years or longer. However, many factors can shorten that lifespan considerably. The two most common causes of premature tape death are equipment malfunction (“The cassette player ate my tape!”) and heat (“The radiator melted my tape!”). Cassette Tape Lifetime Factors All cassette tapes were …
A MKV file is a container format that can be used to store audio and video formats and is considered a competing format to the MP4 and AVI container formats. MKV (Matroska) is an open source format based on EBML (Extensible Binary Meta Language), and includes a greater number of features than supported by other …
CCTV (Closed Circuit TV) uses one or more video cameras to transmit video and sometimes audio images to a monitor, set of monitors, or video recorder. The difference between CCTV and standard TV is that standard TV openly broadcasts signals to the public. CCTV is not openly transmitted to the public. CCTV uses either wireless …
AA, or Audible Audio files, are audio files which are organized in a format optimized for people listening to spoken text. This article will explain what AA files are, list their pros and cons, and list a few programs that are able to support or convert AA files. What are AA Files AA, or Audible …
Choosing an HDMI cable can be a complex task. There are several factors that must be considered in order to select the best HDMI cable to meet the user’s requirements: HDMI standards compliance HDMI Cable Categories Cable length Cable quality Active cables HDMI devices Price HDMI Standards Compliance Each HDMI cable is rated to comply …
Many people these days have a DVR attached to their television set that allows them to pause, record, and playback TV shows and movies whenever they want. While this provides consumers with much-appreciated accessibility and flexibility, a growing trend worldwide is to connect a DVR to a computer in order to watch TV shows and …
As it sounds, a projection television, or more commonly a "rear-projection" TV work by projecting an image from behind the screen itself. Currently, there are three main types of technology used in rear-projection TV's: CRT, LCD, and DLP. Each uses a combination of projection devices, magnification lenses, mirrors, and screens to produce the image seen. …