XDCAM HD/EX is long GOP based codec, which achieves great quality for its
data rate but at the cost of high processing overhead.
DNX is all I frames, thus significantly higher bandwidth but relatively
reduced processing requirements.
Dom Q. Silverio
On Tue, Mar 27, 2012 at 10:18 AM, David <k27usa@yahoo.com> wrote:
> OK - we've been doing some remote editing using standard MacBookPro 2.53
> Intel Core Duo w/4BG ram. We have anywhere from 3 to 7 44min eps to pull
> bites & b-roll from to cover intvw footage. One of our engineers suggested
> we ingest using the XDCAM HD 50Mbit (1080i/60) codec in order to save drive
> space. What I'm finding is that the system bogs down & really struggles -
> spinning beach ball, etc - when trying to access that footage using AMA (I
> know Avid does not recommend using AMA to edit with) so I ended up
> re-importing (instead of transcoding) the episodes at DNx145 and while that
> took considerable time it turned out that the DNx145 is much easier to edit
> with. Far less spinning beach balls.
> Is the XDCAM codec more processor intensive because of the compression ?
>
> Also - I know more RAM is always good, but does anyone think it would make
> a really noticeable difference ?
>
> Thnx in advance
>
> Dave B
>
>
>
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