Tuesday, January 16, 2018

[Avid-L2] Re: 30p clips at 29.97p

 



The frame rate of a source clip indicates how many frames per second it was aquire at.
So 29.97 30 24 25 etc are all different.
In current Media composer versions if that fps doesn't match the project fps MC will add a motion adapter to convert to the project fps and ensure that the source plays at the same speed as it was aquired.
You can via the source setting choose to play the clip at the project fps and prevent frame blending but the speed of the clip and therefore it's duration will alter along with an audio pitch shift.
How your IO hardware copes with the project fps and what it feeds to the TV is down to the hardware. If the TV is an HD TV the spec determines it must accept all valid frame rates. And technically there is no reason a modern TV can't display at any valid HD fps. The only visual difference is how many frames per second you will see.
However lesser TVs will often internally frame rate convert to allow cheaper TV circuits be used and you many then see poor results.



Pat Horridge VET Training



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Posted by: Pat Horridge <pat@horridge.org.uk>
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this is the Avid-L2

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