Video Advantage USB - FAQs

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Specifications - FAQ - Advanced
Q:  What is the bitrate at which your card can capture for analog video 
    (aside from the 64GB/hour figure given in the manual. 
    9 bits... is it a per channel bit sampling, or it's 9 bits total 
    (like 4:4:2 etc...), meaning that my color space will be crushed from 
    potentially millions of colors down to a few thousands or actually
    improving on my current 4:2:2 setup?  Please elaborate.   

A:  Since the TV signal has sequential structure, one 9 bit ADC is enough to
    decode all channels one after another. For S-Video, where separate inputs
    for color and luma are present, two ADC are used for each input. Please 
    note that 9 bits are used internally only to get high decoding accuracy.
    At the device output we have 4:2:2. It is enough because source tv-signal
    has the same quality (4:2:2).

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Q:  What's the highest capture rate for analog (precisely in Mbytes/sec) 

A:  -  Video pipe can transfer up to 24MB/sec  
    -  Audio pipe can transfer up to 192kB/sec  

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Q:  Do you support uncompressed or mathematically lossless?  

A:  We support AVI uncompressed with ADFullCap 

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Q:  Is it MJPG or proprietary codec? (right now I have a MiroDC30 board. 
    I can capture on my machine and edit somewhere else faster with a software
    codec, I'm wondering if this is possible with your card, assuming the 
    9 bits is per channel, this could be very interesting for my application).

A:  We use Main Concepts codec - currently ADFullCap only supports this codec.
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