• Adobe After Effects Expressions

  Dynamic text ticker in Adobe After Effects

  Posted by Avinash Ramanath on April 6, 2015 at 12:45 pm

  Hi,
  Am trying to create a dynamic text crawl/ticker. The content for the ticker is derived from a text file using an expression at source text. what is the ideal speed so that the text does not jitter. Am currently using this expression:

  rate = 2; //value in px/sec.
  value – [rate*timeToFrames(time),1] (i don’t even know if this is the right expression)
  The ticker is for a PAL project. 720X576, 25 frames and 4:3 aspect ratio.

  If the speed of the ticker is based on the above expression, then how to determine the duration of the composition considering X as the number of characters in the ticker content. Am using a fixed width font “Courier” for the content and the content can go upto 1500 characters.

  Avinash Ramanath replied 9 years, 9 months ago 1 Member · 0 Replies
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