Video Audio does not play on EPUB file export

Explorer ,
May 11, 2022 May 11, 2022

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Hello

I am embeding a video clip into a document and then exporting as an epub fixed layout.  When I check the file after export the video plays but the audio does not.  When I preview the clip in Indesign everything works fine.  The video is an mp4 video exported out of premier pro.  I am using Indesign 16.4.2.

Thank you for any insight you could give me.

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EPUB , Import and export

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Explorer , May 11, 2022 May 11, 2022
Thank you all for the great insight!  I was finally able to get it to work by re-exporting the video and then re embedding it.  I did not change any of the export settings(H.264, 48000Hz).  This seemed to fix the problem.

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Adobe Community Professional ,
May 11, 2022 May 11, 2022

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What is your EPUB viewing application?

Does the audio of the video work when you Publish Online the document?

 

Regards,
Uwe Laubender

( ACP )

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Explorer ,
May 11, 2022 May 11, 2022

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I am viewing the fil on Apple Books.  I also have other audio only files embedded and they work fine. 

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Adobe Community Professional ,
May 11, 2022 May 11, 2022

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Mp4 but with which encoding?

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Explorer ,
May 11, 2022 May 11, 2022

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Quicktime, Adobe Stock HD, 48000 Hz

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Explorer ,
May 11, 2022 May 11, 2022

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Also tried H.264

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Explorer ,
May 11, 2022 May 11, 2022

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When I Publish Online I get the same error.  No audio from the video.

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Adobe Community Professional ,
May 11, 2022 May 11, 2022

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I would also try to test the FXL EPUB file with Thorium Reader and Calibre e-pub viewer.

Also test on a Windows machine with Thorium Reader and Calibre e-pub viewer.

 

Could well be, that a new bug was introduced with Apple Books.

I cannot test that, because I am on Windows 10.

 

Regards,
Uwe Laubender

( ACP )

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Explorer ,
May 11, 2022 May 11, 2022

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Does the same in Cabre.  No audio.

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Adobe Community Professional ,
May 11, 2022 May 11, 2022

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And as I already said: Also try InDesign's Publish Online feature.

 

Regards,
Uwe Laubender

( ACP )

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Adobe Community Professional ,
May 11, 2022 May 11, 2022

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Does it play properly in other applications? Try a quick export to Publish Online.

I would also try exporting from 17.2.1. You never know about these things.

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Explorer ,
May 11, 2022 May 11, 2022

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Thank you all for the great insight!  I was finally able to get it to work by re-exporting the video and then re embedding it.  I did not change any of the export settings(H.264, 48000Hz).  This seemed to fix the problem.

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