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Audio goes crazy, gets destroyed when video speed changes or fx is applied or random edits
browniee112 [Avatar]
Member Joined: Dec 28, 2017 03:57 Messages: 66 Offline
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Audio gets destroyed when "unlinked/different timeline" video speed changes or fx is applied or any random edits. There are no specific pattern on why it happens, just happens at various times at various places.

When previewing, no issues. After producing you see these issues with the audio going crazy. There is nothing too complicated in the timeline.

I have attached the video snippet showing what I mean, it happens at 15th second.
Also attached screenshot of timeline.


Google Drive folder with files - https://drive.google.com/open?id=1kXdod9giG85_-3qKpnCrSJDqI2y8JpYT
[Thumb - Audio issue.jpg]
 Filename
Audio issue.jpg
[Disk]
 Description
 Filesize
166 Kbytes
 Downloaded:
2 time(s)
optodata
Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline
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Quote Audio gets destroyed when "unlinked/different timeline" video speed changes or fx is applied or any random edits. There are no specific pattern on why it happens, just happens at various times at various places.

When previewing, no issues. After producing you see these issues with the audio going crazy. There is nothing too complicated in the timeline.

I have attached the video snippet showing what I mean, it happens at 15th second.
Also attached screenshot of timeline.

In your MP4 snippet, the sound goes bad at 00:19 and continues until 00:26, exactly corresponding to the GOPR3994 clip as shown on your timeline image. I don't hear or see anything unusual at the 15th second.

As a test, can you right click on that clip on the timeline then choose Link/Unlink Video and Audio? Click anywhere else to deselect the clips, then delete the audio track. Use Shift+Del or right-click and select Remove and Leave Gap and see what happens when you produce that section again.

Also, in order to open the project, we need all the files from your original project to reproduce the issue.

Since it's nearly 3 hours in length, delete everything but the first 30 seconds or so and use Save Project As... to save a shorter version of the project. Then use File, Pack Project Materials... from the shorter project and save everything to the existing G Drive folder you've already shared.

This message was edited 2 times. Last update was at Dec 27. 2018 17:04



YouTube/optodata


DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors

Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°
browniee112 [Avatar]
Member Joined: Dec 28, 2017 03:57 Messages: 66 Offline
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Quote

In your MP4 snippet, the sound goes bad at 00:19 and continues until 00:26, exactly corresponding to the GOPR3994 clip as shown on your timeline image. I don't hear or see anything unusual at the 15th second.

As a test, can you right click on that clip on the timeline then choose Link/Unlink Video and Audio? Click anywhere else to deselect the clips, then delete the audio track. Use Shift+Del or right-click and select Remove and Leave Gap and see what happens when you produce that section again.

Also, in order to open the project, we need all the files from your original project to reproduce the issue.

Since it's nearly 3 hours in length, delete everything but the first 30 seconds or so and use Save Project As... to save a shorter version of the project. Then use File, Pack Project Materials... from the shorter project and save everything to the existing G Drive folder you've already shared.


You maybe right about the 19th second vs 15. I heard it wrong.

I produced again and it didn't have the issue. What I mean is, the sound goes bad like you've heard on the clip at random times. Nothing specific to a type of edit or what not. I redo the produce and everything is jolly.

Just a nuisance because rendering takes ages and cannot afford to just retry produce every time something like this happen.

So I take it that nobody* have seen this or happened to them before? I didn't have this in PD15,16 etc, just PD 17.

This message was edited 1 time. Last update was at Dec 27. 2018 17:31

optodata
Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline
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I don't know if anyone else has seen this, but random problems are the hardest to track down. You can try rebooting, and also try choosing a different produce profile.

As I suggested above, try unlinking and deleting that section of (muted?) audio, or replace/remove the BCC FX. The goal is to find something - anything- that triggers or removes the issue.

Maybe running and posting the DxDiag results again may shed some light on this. You could also go ahead and pack and share the entire project (if you're comfortable sharing the clips).

YouTube/optodata


DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors

Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°
browniee112 [Avatar]
Member Joined: Dec 28, 2017 03:57 Messages: 66 Offline
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Quote I don't know if anyone else has seen this, but random problems are the hardest to track down. You can try rebooting, and also try choosing a different produce profile.

As I suggested above, try unlinking and deleting that section of (muted?) audio, or replace/remove the BCC FX. The goal is to find something - anything- that triggers or removes the issue.

Maybe running and posting the DxDiag results again may shed some light on this. You could also go ahead and pack and share the entire project (if you're comfortable sharing the clips).


Sorry what I mean is if this strange behaviour happened to people on this forum.
I totally understand, it is very hard to reproduce something and trace it's root cause when it happens at random.

However, the pattern I've noticed is when the original clip is

  1. Sped up/slowed down

  2. Audio volume adjustment/audio ducking

  3. I even completely remove the "unused" audio from the video tracks, I "unlink" video-audio most of the time and then adjust the speed of the clip/add fx/add transition or whatnot



Hard to find the root cause.
What I do to fix is, I "cut/delete/split" the area of the music soundtrack that goes bad, and stretch-fill the soundtrack again. This seems to fix the audio issue when produced again.

Unfortunately cannot share the whole project files yet, have to ask permission from mrs

This message was edited 1 time. Last update was at Dec 27. 2018 17:41

optodata
Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline
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Quote Unfortunately cannot share the whole project files yet, have to ask permission from mrs

Of course. No need to push any boundaries here!

Quote However, the pattern I've noticed is when the original clip is

  • Sped up/slowed down

  • This is a big clue. When you change the video speed, the audio also gets changed UNLESS you specifically tell PD to mute it during the transition. When you make a Video Speed change, click on the gear icon at the far left side of the tool and make sure you choose the appropriate sound option:



    The default setting is Keep audio, but chances are you'd want to use Remove audio (or possibly keep it, but have PD adjust the pitch to sound normal, even though it plays slower or faster than normal).

    If you haven't used this setting before, try it out and see if that's what's been causing your headaches.

    YouTube/optodata


    DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors

    Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°
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