PowerDVD 15 shows "unsupported audio" when playing some m4p files

cplloyd42

Newbie Joined: Aug 02, 2015 04:42 Messages: 11 Offline

Solved by

Aug 19, 2015 07:14

I recently upgraded my Powerdvd 13 to 15. Now, the majority, but not all, my mp4 movie files show the "Unsupported Audio" message when they start to play, and no audio ensues. The other mp4 files have no trouble with the soundtrack. Is there some codec I should install/update?

Paul.

Win 8.1

cplloyd42

Newbie Joined: Aug 02, 2015 04:42 Messages: 11 Offline

Aug 23, 2015 06:33

Well, it looks like this has stumped everyone. As no one appears to have a ready answer, my only option appears to be to regenerate the ~30 mp4 files. I've done this for a few and the new files don't seem to have any problems with the audio.

So, am I to expect further loss of backwards compatibility in future PowerDVD upgrades? I think I will be trying before I buy in the future.

Paul.

Hicham_B

Senior Contributor Joined: Jun 09, 2015 04:02 Messages: 1347 Offline

Aug 25, 2015 06:49

Hi Paul,

You may contact our Customer Support Team: Support

Best regards

-CLN Hicham

Technical Support

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Euan Macdonald

Newbie Joined: Sep 10, 2015 19:25 Messages: 2 Offline

Sep 26, 2015 04:05

I had a similar problem and eventually found a fix by:

1) un-installing the IDT audio driver (on my HP ultrabook)

2) reinstalling PowerDVD

3) reinstalling the IDT audio driver

cplloyd42

Newbie Joined: Aug 02, 2015 04:42 Messages: 11 Offline

Sep 26, 2015 06:44

Euan,

Thanks for your input. I've no idea what an IDT driver is - I can't find it in the obvious places on my Acer desktop. Is this an HP driver?

I have been negotiating with Cyberlink Technical Support and they appear to acknowledge that they didn't include support for legacy AAC audio encoding. Here is what they said:

"For technical detail, PowerDVD 15 support to playback AAC audio format
encoded with LC and HE profile currently. (LC: Low Complexity, HE: High
Efficiency). But not support to playback AAC encoded with Main profile.
It's program limitation."

They have requested their software engineers to include this in a future update.

Paul.

This message was edited 1 time. Last update was at Sep 26. 2015 06:45

Euan Macdonald

Newbie Joined: Sep 10, 2015 19:25 Messages: 2 Offline

Sep 26, 2015 07:11

Thanks for the details. It sounds like the root cause of your problem is different from the one I experienced.

IDT is a "high definition audio driver" from HP. It looks like there was some kind of installation sequence problem/incompatibility with PowerDVD.

Regards

Euan

vincent

Newbie Joined: Apr 09, 2015 15:24 Messages: 1 Offline

Jun 10, 2016 19:45

I have two Blu-Ray movies that have no sound.
Powerdvd 15 will not play the English audio tracks on either of these disks.

One title is The Maltese Falcon
The other is Soylent green

All other language tracks play normal.

Support is terrible
All they give is canned responses.