[Tomas Bumbulevičius]

Hey Tom, in the past I made a video about “these type” of problems and you could get more sense about it here: https://youtu.be/8CkpIfGoZI8

In short – you need to modify anchorpoint of text layer, that it “stays” in the place you want it to be. in this case, I case it should grow from the bottom to the top – thus you need to set expression for text to stick based on its sourceRect height.

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[Tomas Bumbulevičius]

Hey Royce, I haven’t tried accessing it with expressions, but solely alone by the fact how straightforward-NOT it is to do this through extendscript scripting – its very unlikely to be possible. Only a guess, but from someone who tried working making the use of XMP.

[Tomas Bumbulevičius]

Hey Daniel, any chance you could outline at least a few filenames, to see the pattern? If it has some naming convention, it would give indication how to proceed.

But in general, its a scripting task of going through a loop and updating names.

[Tomas Bumbulevičius]

Hey Sami – what if using easeIn/easeOut interpolation from 0..100 instead of linear?

[Tomas Bumbulevičius]

Hey Nihad, unless someone points out otherwise, without converting natively in AE or with a help of 3rd party plugins – not possible.

Reasoning behind this – in order to access some sort of parameters though expressions, audio layer should at least have relative attribute to link to. However, “waveform” doesn’t have such and thats where “convert to audio keyframes” comes in place.

[Tomas Bumbulevičius]

Hey Khalil, there is definitely a way to control these through expression – but you must ensure that all the texts are linked to your “controller” text.

There are two main options:
1. You do this through essential graphics panel;
2. You do this through expressions.

Depending what flexibility you are going to offer for a client, that will provide a path to follow. However, be aware that allowing such things like font sizes change, requires additional logic double check, in case if design overbleed its boundaries.

[Tomas Bumbulevičius]

Hey Clement, the question here is whats behind as well as ahead of your selected keyframe to be modified

As Dan mentioned – directly you won’t be able to alter it. However, if you give us a bigger picture of task, I am sure workaround can be found.

[Tomas Bumbulevičius]

Thanks a lot Andrei! I always thought true/false for extents is only for shapes!

Could you please elaborate on the “1.2” multiplication? Can this value vary depending on the font chosen?

[Tomas Bumbulevičius]

Gregory, no worries, glad I understood the needs! There are without a doubt many ways on achieving the same things through a different technique – thus, don’t hesitate to explore the options – only though trial and error ideas pops in front of us. Good luck!

[Tomas Bumbulevičius]

Hey Gregory, first of – well done that you uploaded a project file to test with. Its a lot easier to find a workaround this way!

I think it can be simplified, but a few things to clarify:
1. Essentially, what you need to achieve is for phrase to animate phrase in a constant speed. Depending on their chars count, animation will change in duration if its 1letter / 2 frames. Is this correct assumption?
2. If above is correct, keyframes has to go away completely from animate On slider. As now its the reason why animation duration is not constant for each letter. You are forcing it to fit within 20 frames, disregarding phrase length.

Based on above thoughts and with least changes to existing structure.

~ Remove keyframes from Animate On;
~ Set Animate On slider to setting, for characters animation count/frame. 1 will be 1char every frame, 2 stands for 1 char every 2 frames, etc.
~ Remove keyframes from Range Selector.

Apply below expression to achieve this, applied to yours Animator 2 Range Selector 1>Start.

var animSpeedPerChar = effect("Animate On")("Slider");
var numChars = effect("Character Count")("Slider");
var frameDur = thisComp.frameDuration
var animLength = animSpeedPerChar * numChars * frameDur;
var res = linear(time, 0, animLength, 0, numChars)
Math.round(res)