Saturday, November 27, 2010

Re: [Avid-L2] Re: 50 FPS

 

Answers inline...

On Sat, Nov 27, 2010 at 4:57 AM, trevatpc <trevatpc@yahoo.co.uk> wrote:

>
>
> So if you could have a 50fps project it would play at 'normal / as-live'
> speed
>

You can have a 50 fps project. 720p/50

> But in a 25fps project it'll have a 200% motion adapter applied to make it
> 'as-live' speed ?
>

Correct.

> And removing that motion adapter will give you 'half real speed /
> slow-motion' playback?
>

You can't remove it. You can change it to play at another speed. Since the
sequence determines the frame rate of playback, any non-native clip has to
have a motion adapter applied to it - even if it is later modified to match
the initial frame rate (playback @ 100%).

> But beware 'refresh motion adapters' as it'll then put the 200% effect back
> on?
>

Since you can't take it off, only modify it, the refresh sequence command
will obey the new setting. (Nothing changes.) Once you promote the default
adapter to a Timewarp, it won't get refreshed.

> Does applying a 100% motion effect to that clip (50fps in 25fps project)
> mean that 'refresh motion adapters' will not make any further changes (other
> than interlaced/progressive inputs/outputs are amended)? It certainly
> behaves that way with off-speed effects applied.
>

As stated above. That's exactly what happens when you modify the initial
adapter.

>
> Frank is there any way of disabling or removing motion adapters from a
> sequence?
>

No. It's how Media Composer handles mixed frame rate sources in a sequence.

> I can see how they are useful when mixing frame rates but I don't seen the
> advantage of putting a 100% interlaced output motion effect on a clip that
> has been assigned 'progressive' in an interlaced project - it's effectively
> doing nothing as far as I can make out.
>

Not quite true. It's taking a full frame and using it as a single field -
half the resolution.

[Non-text portions of this message have been removed]

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