Quote:
Originally Posted by juhok
@dannotto
Can I download that test pattern from somewhere? I'd be interested to compare Pixelmagic PDI Deluxe(SAA7118) and Datavideo TBC-1000(composite->s-video) with your results.
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The pattern can be found on Digital Video Essentials disc (not free content).
Pixelmagic PDI Deluxe has two ADC: SAA7118 (the big chip) and BT878. If SAA7118 handle composite input the quality will be the same like in the picture posted by me because SAA7118 and SAA713x have the same characteristics regarding video processing. SAA713x integrates a demodulator and PCI interface. If BT878 process composite signal (unlikely) the quality will be lower because comb filter is basic (notch filter).
Datavideo TBC-1000 is driven by Philips SAA7114 ADC, part of the same family of 9 bit with the same adaptive comb filter. So, both devices (Pixelmagic PDI Deluxe and Datavideo TBC-1000) must have the same performance in terms of Y/C separation.
A free benchmark disc with EIA 1956 resolution patern is is given by Tvblink. You must download the ISO image and burn on DVD blank.
http://www.tvblink.com/i_dvd.html
Quote:
Originally Posted by zilog jones
I also have a SAA7134 based card and didn't know how bad the comb filter was compared to others.
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Very few tv tuner cards have 3D comb filter. Most of them use a adaptive comb filter.