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PaulBarker's avatar
PaulBarker
Community Member
4 years ago

Unable to play high frequency mp3 in Storyline 3

Hi all.  We have a presentation that is demonstrating the human hearing range (20Hz - 20kHz).  We have 2 sound samples (mp3) that play a sound at 15kHz and 20kHz; the idea being that younger people can hear the higher frequency and older people can only hear the lower frequency.

The issue I have is that after putting these sounds on the timeline they don't play (preview or published).  I can put other sounds in and they work fine.  I can play both of these mp3 files outside of Storyline and they work.  And, before anyone asks, I got a young person to confirm this, cos I can't hear either of them!

These sounds were part of a swf that happily played in a Presenter presentation previously.

I am wondering if there is a limitation in Storyline to do with the higher frequency and how sounds are processed, saved and presented that means that these can't be heard?

If anyone has any information on this I'd be very happy to hear it.  

Thanks

Paul

  • Hi, Paul.

    Thank you for reaching out and describing what you're experiencing! 

    I'm curious to learn if the audio frequency can affect importing the file, so I went ahead and opened a support case with our engineers on your behalf. You should hear from our team soon via e-mail. 

  • PaulBarker's avatar
    PaulBarker
    Community Member

    Thanks Maria.  I have started a conversation with Lejan.  The suggestion is to save the audio as 16 bit 44 kHz PCM WAV files.  I can confirm this works for the 15kHz sample, but not the 20kHz sample.  Still more work to do!

    Paul