Do you know how to adjust speed of audio created by "Text to Speech"?

Apr 22, 2022

I am creating e-Learning course with Articulate Storyline, also I use "Text to Speech " fanction to create audio.

My boss asked me that it could be slow down the audio speed.

But I cannot find speed controler.
Can I change the speed of audio? If someone knows, please advise me.

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Kelly Auner

Hi, everyone!

I have some great news to share. We just released another update for Storyline 360. In Update 83, we’ve included important fixes and new features!

One enhanced feature we’ve included:

Unlock new possibilities for text-to-speech audio. Use speech synthesis markup language (SSML) to adjust the speaking rate, modify pronunciation, emphasize words, add pauses, and more.

To take advantage of this update, launch the Articulate 360 desktop app on your computer, and click the Update button next to Storyline 360. You'll find our step-by-step instructions here!

33 Replies
Kelly Auner

Hi, everyone!

I have some great news to share. We just released another update for Storyline 360. In Update 83, we’ve included important fixes and new features!

One enhanced feature we’ve included:

Unlock new possibilities for text-to-speech audio. Use speech synthesis markup language (SSML) to adjust the speaking rate, modify pronunciation, emphasize words, add pauses, and more.

To take advantage of this update, launch the Articulate 360 desktop app on your computer, and click the Update button next to Storyline 360. You'll find our step-by-step instructions here!

James Zediana

Awesom!

Jim Zediana
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Jose Tansengco

Hello Misty,

Happy to help!

You'll need to specify the duration of the break for the tag to work properly. The correct syntax would be something like this: 

<speak>What Imperial value adds,<break time="3s"/>services or<break time="3s"/>programs do they use?</speak>

You can check out this article for more information on the proper formatting of SSML tags!