Audio quality degrading in Captivate

New Here ,
Jul 07, 2020

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So I have recorded audio for my e-learning course in Adobe audition. It sounds good in Audition and when played independently, but when I import it into Captivate it is sounding scratchy (best term I can describe). Any idea of how to fix this? This isn't my first time importing a .wav file from audition to Captivate, just the first time I've noticed a degredation in quality. Thoughts?

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Adobe Community Professional ,
Jul 07, 2020

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Is the audio 16bit PCM?

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New Here ,
Jul 08, 2020

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It's currently 32 bit

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Adobe Community Professional ,
Jul 08, 2020

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Then try my suggestion and use 16bit PCM WAV.

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Most Valuable Participant ,
Jul 08, 2020

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It is a WAV file, correct? What are the settings? How did you test in Captivate (Preview or after publishing)? I mostly use your workflow, creating the audio clips in Audition and then import them to the Captivate library from which I drag them on the appropriate slides. 

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New Here ,
Jul 08, 2020

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It is a WAV file. So it's currently 48000 Hz and 32 bit (float). I'm listening to it in the production side and previewing it in HTML5. I'm hearing it in both. I honestly haven't tried putting it into my LMS yet to see if it is there. I've never had this issue before and I didn't change my overall process at all.

 

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New Here ,
Oct 02, 2020

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I am having the same issue. We haven't developed new eLearns with audio for a few months, and are back at creating our next batch of courses - and the audio is coming out horrible through captivate. I created in Audition, it sounds great. Bring it into Captivate, and it's terrible sounding.

 

Really terrible sounding in the Audio edit screen when adding the closed captioning, it's robotic sounding.

 

When I preview the slides/course in HTML or Slide preview, it's not as bad, but terrible.

 

So I published, just to see how it sounds, and it is still very crackly.

 

This is not a new process for me, have been doing course with audio for some time now - it worked before, but is not working now.

 

Did you report this to Adobe? Did you find a solution?

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Participant ,
Oct 02, 2020

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Not a bug. Just Captivates way to compress the audio so it is tagged to match 30 FPS in the time line. But the task is outdated and unnecessary now-a-days.

 

Export the project and replace/overwr  ite the audio files with the source files (remeber to rename your files so the are matching.)

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RodWard LATEST
Adobe Community Professional ,
Oct 02, 2020

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Captivate audio files need to be 16bit PCM WAV files (though it will also accept MP3 before then changing them back to WAV internally).  Using the wrong format or bitrate can cause degrated audio issues like this.

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