Pardon me, but I have some questions about data speed ratings.
Steven Ellis wrote:
>...
> One thing to understand here is that a USB capture
> device / tuner is
> going to offer you substantially lower quality video
> than a PCI card. So
> unless USB is the only way, look for something else.
> USB = 7 megs per second.
Do you mean 7 Mbyt/sec ?
I suppose USB limit must be much less, about ten times at least.
> NTSC video at 30fps = 34 megs per second.
> Think about it.
I have encountered with this rating, but where it from ?
IMHO 8MGhz (2*video frec) * 3 bytes (RGB 24bit per point) = 24Mbyt/sec.
But in reality there is transfer with YUV values that consume 1 byte
per point and since about 8Mbyt/sec.
Please point me to where i am wrong.
Thanks
Andrew
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