what happens with 23.976p clips in a 24p timeline in resolve

I'm editing a project with mixed frame rates.


narrative stuff is in both
24p (~60% of the total narrative footage)
23.976p (~40% of the total narrative footage)

Conforming the 30p, 59.94p 29.97p footage makes sense when slowed down in the timeline however my question is what should I do? Here's what I see as my options

a) 24p timeline, drop the the 24 and 23.976 into the timeline?

b) 24p timeline, drop in the 24p clips and then change the Clip Attributes on the 23.976 to 24p and then drop them in)

c) conform the 24p to 23.976 and use a 23.976 timeline (inverse of option b)

Ive been reading thread after thread and can't find this particular question answered.

Any help would be greatly appreciated.

You choose your final fps, so either 24 or 23.976 (2nd is probably better choice unless you targeting cinema).
Then for all clips which are 24 you change fps to 23.976 at clip attribute level. They will be slow down a tiny bit, but it won't introduce any conversion artefacts.
In order to get audio processed as well you need to change project settings- general tab "Mixed frame rate format" to None (if I remember well). This info can be found on this forum.

As always, test any and all suggestions, but here's how I would attempt it:

1) set your preferred fps setting for the timeline, whether it's 23.976 or 24.

2) before importing any media, change the mismatched frame settings (preferences>conform) to "none".

3) import media.

4) edit, and export at whatever the timeline frame rate is.

The idea is, all the clips -- including any embedded audio - will now run at whatever the frame-rate of the timeline is. Leaving the mismatch frame setting at "Resolve" and changing Clip Attributes will disrupt audio sync for any clips with embedded audio, and could cause other unwelcome anomalies.

Anyway, give it a try.

@John @Andrew, thank you so much for the reply. With all the ways to approach it I appreciate the guidance. Giving it a shot and will share an update after some testing.

Thank you both

24 and 23.976 are different frame rates, and that will show up.

Go with option B.

I would vote for option B as well, but be aware you'll need to change the run speed of the audio as well.

And yell at the client for mixing up 24p and 23.98p, because they are not the same.

I would vote for option B as well, but be aware you'll need to change the run speed of the audio as well.

If the audio is embedded in a clip whose frame rate is changed in clip attributes, you'll never get it in sync. Try this with a framerate divergence of greater than .1% (as in this case), and the failure should be obvious.

Why folks are recommending "b" is puzzling. You guys have tried it, and with audio? Is this recommendation based in hope or experience?