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Tutorial: Using TV Tuner Cards Under Linux


Wish you could watch The Simpsons on your Linux box? This Howto may help.
A TV Tuner card has three important components. The tuner chip is used to "listen" to a specific broadcast frequency. Most cards have major problems tuning weak signals, especially when an antenna is the input source. A video decoder chip processes the incoming signal and processes the broadcast format (PAL/NTSC/SECAM) and pushes it to an overlay area of the main video card. The overlay area is a part of the video memory which is directly written onto by the TV tuner to display the TV channel. Finally a sound decoder chip, processes the audio signals and can additionally decode Stereo/Dolby signals before feeding it to the speakers.
 read more | mail this link | score:5985 | -Ray, January 11, 2001 (Updated: February 4, 2004)
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Articles are owned by their authors.   © 2000-2012 Ray Yeargin