Synching a closed-caption layer with audio on the base layer

Hi, all. 

I'm working on a module with closed caption the user accesses by clicking on a "CC" button, which activates the closed-caption layer. The problem is that the closed-caption layer starts when activated and is not synched up with the audio, which is on the base layer, so I can't get the three text blocks in synch with the audio. Is there a way around this? Thanks!

15 Replies
Joseph Goforth

Hi Shel,

I finished a CC solution, today. I tried starting a new discussion (my first) with the project file as an attachment, but nothing has been posted. I made a demo for my ID team, but it shows just the outcome. It’s not a step-by-step tutorial. I’m hoping that, eventually, the .story file will be made available for download and dissection. I’d like some feedback. Here’s a link to the demo:



Joseph Goforth

I would be remiss if I didn’t give a big shout out to Matthew Guyan. It's his article that's the basis for triggering the text.

3 Ways to Boost E-Learning Accessibility with Closed Captions

But, I wanted to have a CC button in the player controls where the general population would expect it, and have it toggle at any point in the playback.