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BrycePoole-1cf0's avatar
BrycePoole-1cf0
Community Member
6 days ago

Odd AI audio issue

Hi everyone,

I’m hoping someone can help with an issue I’ve encountered while developing French versions of courses.

In multiple courses, the French AI-generated audio plays correctly, but the automatically generated closed captions appear in English. In each case, the workflow was:

  1. Develop the English version of the course.
  2. Create a copy for the French version.
  3. Export the Word document, translate it, and import the translated content.
  4. Regenerate the AI audio in French.

The Generate Closed Captions option remained selected throughout the process (it is enabled by default). However, for some reason, the captions generated are still in English while the audio is French.

I can resolve the issue by recreating the AI audio slide by slide, which also regenerates the captions correctly. However, I’ve noticed another problem: the newly generated audio is a different length than the original, even when using the same voice, speed, and all other settings.

To troubleshoot, I tried several approaches, including:

  • Generating completely new AI audio from the translated slide content.
  • Using the Notes section to create new audio.
  • Recreating audio through the existing AI Text-to-Speech settings while ensuring all voice and playback settings matched the original.

Despite using the same settings and text, the regenerated audio lengths are different, which impacts animation timing throughout the course.

My questions are:

  • Is there a faster way to update or regenerate closed captions that are in the wrong language without recreating the audio on every slide?
  • Has anyone experienced captions being generated in English while using French AI audio?
  • Does anyone know why AI text-to-speech audio length would differ when regenerated using the same voice and settings?
  • Will I need to recreate the audio and adjust animations slide by slide, or is there a more efficient solution?

Any insights or recommendations would be greatly appreciated. Thanks in advance!

Bryce

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e-learning development
storyline 360

1 Reply

  • JMManalili's avatar
    JMManalili
    Staff
    2 days ago

    Hi BrycePoole-1cf0​,

    I appreciate you sharing such a detailed description and outlining what you’ve already tried. I understand how much extra work this creates when regenerating narration also means adjusting your animation timing.

    Could you let us know which Storyline 360 build you’re using? You can find the full build number under Help > About Storyline.

    Since your French audio is still showing English captions across multiple courses, we’d like to take a closer look at the project behavior. The best next step is to open a support case so our team can investigate privately.

    If possible, include a sample .story project with a slide where the French audio still has English captions, before recreating the audio. That will help us review the caption mismatch and the audio duration changes you’re seeing without asking you to repeat the troubleshooting you’ve already completed.