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HELP! Producing mp4 leads to overmodulated audio
Ken_KMF [Avatar]
Newbie Joined: Dec 14, 2016 23:37 Messages: 1 Offline
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HELP! I have a project I am working on and when I export to mp4 the audio becomes overmodulated and garbled.

Here is the project as a wmv file - https://www.dropbox.com/s/qvxfwhjwcqcvqpi/Archibalds%20Kids_Final.wmv?dl=0

And here it is as a mp4 - https://www.dropbox.com/s/mh42wfin6za1j0o/Archibalds%20Kids_Test.mp4?dl=0

Hear the difference? This happens no matter what I try to change in the audio settings on the mp4 side of things. The original track is a wav file and plays fine on all of my other software.

Someone, Anyone!
RickMcKC [Avatar]
Newbie Joined: Jan 01, 2014 15:27 Messages: 22 Offline
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Quote HELP! I have a project I am working on and when I export to mp4 the audio becomes overmodulated and garbled.

Here is the project as a wmv file - https://www.dropbox.com/s/qvxfwhjwcqcvqpi/Archibalds%20Kids_Final.wmv?dl=0

And here it is as a mp4 - https://www.dropbox.com/s/mh42wfin6za1j0o/Archibalds%20Kids_Test.mp4?dl=0

Hear the difference? This happens no matter what I try to change in the audio settings on the mp4 side of things. The original track is a wav file and plays fine on all of my other software.

Someone, Anyone!


Exact same issue discussed here:

http://forum.cyberlink.com/forum/posts/list/50425.page

Supposedly CL is working on it ... hopefully.
tomasc [Avatar]
Senior Contributor Joined: Aug 25, 2011 12:33 Messages: 6464 Offline
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If your source clip’s audio is stereo then try this: Change the Preferences audio from stereo to 5.1. Produce again to the same mp4 profile.

Let us know if this helps.
Rutkoski [Avatar]
Newbie Joined: Dec 16, 2016 20:48 Messages: 3 Offline
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Quote If your source clip’s audio is stereo then try this: Change the Preferences audio from stereo to 5.1. Produce again to the same mp4 profile.

Let us know if this helps.




I am having the exact same problem with Power Director Ulitmate 15. The sound is terrible when final produced. I tried changing the audio preferences from stereo to 5.1 without any change in the output. The preview of the video after the video produces sounds fine, but if you play the file with anything else, or import it back into Power Director as another clip, the sound is garbled. You can hear it, but it is like there is a ghost track that is garbled.

It could be that the audio phase is getting messed up in rendering code.

If an update isn't available fast, I will have to go back and completely reedit my entire video in the older version.

This message was edited 1 time. Last update was at Dec 16. 2016 21:05

RickMcKC [Avatar]
Newbie Joined: Jan 01, 2014 15:27 Messages: 22 Offline
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Quote
If an update isn't available fast, I will have to go back and completely reedit my entire video in the older version.


Before you do that, you might try this (this is what I have been doing to get decent MP4 audio):

1. Edit/produce the video in PD15. (You apparently have done this already).

2. Produce just an audio track from PD15 in WAV format.

3. Run PD13 (or earlier version)

4. Import video from step 1, audio from step two.

5. Mute audio track from step 1 video.

6. Produce using SVRT. Sound is perfect.

The whole process adds about 5 minutes which is five minutes more than it should.

This message was edited 1 time. Last update was at Dec 16. 2016 22:52

Rutkoski [Avatar]
Newbie Joined: Dec 16, 2016 20:48 Messages: 3 Offline
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Thanks, but I tried that and apparently Power Director 13 is doing the same thing now that I updated to 15. The only way I was able to get this to work was bringing in the video and sound for the video into an old version of Corel Video Studio, but it has very limited output options. At least I know it works in something else. I can't produce the entire project in Corel. I hope they provide an update fast! I am stuck and upset.

Quote
Quote
If an update isn't available fast, I will have to go back and completely reedit my entire video in the older version.


Before you do that, you might try this (this is what I have been doing to get decent MP4 audio):

1. Edit/produce the video in PD15. (You apparently have done this already).

2. Produce just an audio track from PD15 in WAV format.

3. Run PD13 (or earlier version)

4. Import video from step 1, audio from step two.

5. Mute audio track from step 1 video.

6. Produce using SVRT. Sound is perfect.

The whole process adds about 5 minutes which is five minutes more than it should.
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