Audio is corrupted after editing text-to-speech

Every time I try to edit something in the text-to-speech text box (after first generation of the audio), I get corrupted audio, with something like a weird echo. The solution is to delete the whole audio and create a new TTS audio. Of, course, a huge waste of time.

Is this a known issue? Are you working on it? 


8 Replies
Ashley Terwilliger

Hi Marcos,

It's not an issue I see noted as a bug, so I'd like to investigate further with you! 

First, can you check the following: 

  • Are you on the latest update of Storyline 360 - Storyline 360, build 3.24.17733.0? You can check by going to the "Help" Tab -> "About Articulate Storyline".
  • When working on project files, do you follow the guidelines here to prevent corruption?
  • Is this happening in every file, or one specific file?

I gave this a quick test, and adding in some text to speech and then editing it, but I didn't hear any changes in the audio quality. Could you walk me through your steps exactly so I can try replicating?

Laurie Barnett

Ashley, I am having the same problem as Marcos. I'm following the guidelines to prevent corruption and I'm on the latest build of Storyline 360. This does not happen every time I edit the text-to-speech and return to editing the closed captions, but it happened to me in 2 or 3 of about 10 slides today (so far). 

Although I can delete the audio and start all over again, it's aggravating when you've already updated the closed captioning for 2 minutes of a 2.5 minute audio piece and have to start all over again!

Patti Blasingame

Hello. This problem happens to me all the time on large and small projects. I have the latest version of 360, save my files, etc. It has been a constant thing for over a year. It is frustrating and time consuming.

Here's what happens... after one or two edits to the Text to Speech item in the edit window, the audio item on the timeline fades out/grays out, and will not play sound no matter what I try. 

The workaround:

1. Hover over the Text to Speech item on the Timeline, then, right click and select Text to Speech to open the Edit window

2. COPY your original text (close the edit window)

3, Create a NEW text to speech item by going to Insert > Audio > Text to Speech, then PASTE your original text in the new TTP edit window

4. Select Insert (SAVE)

5. Then click on the old (audio) item on the timeline and delete it.  

I realize this adds steps, but it is better than completely losing your text... particularly when you have worked so hard tweaking the sound.

If there is a way to prevent this problem, I'm listening!


Thor Melicher

I’m not sure if this will help but I did write an application that may streamline your process just a bit.  It’s a bit of a workaround though as you’ll have to go to the source that Storyline uses, Amazon Polly voices. 

Here’s what you do: 

  1. Get an Amazon Polly account (yes, there is some cost involved but doesn’t seem that prohibitive) (
  2. Save your scripts as separate files (MS-Word or Text)
  3. Download HeroVoice TTS from the Microsoft Windows Store (fully functioning 15-day free trial)
  4. Encode your files with HeroVoice TTS – apply a global setting for speed and even comma duration so your files are consistent.
  5. Select the voice you want – these are the same as you’ll find in Storyline today including Neural voices (which aren’t currently available in Storyline)
  6. Load each audio file into Storyline