lip sync problems with Bluray authoring and producing video files

Heavytiger

Contributor Joined: Jun 21, 2008 10:16 Messages: 474 Offline

Solved by

Nov 11, 2015 22:24

I have a fairly complex 37 min video that plays fine in the timeline but when authored to a bluray disc has lip sync issues in certain spots. My source video is avchd and I burn the disc using H.264. (I have also tried mpeg 2).The video is sharp but the audio as I said gets out of sync. I tried dividing the project into thirds and producing files in H.264 and use these files to burn the disc. But that didn't help. On close inspection the produced files are also slightly out of sync in the same location as on the disc.

I finally tried buring a disc as a test just using the videos that get out of sync. I burned the disc directly from the timeline without producing video files. The video was very clear and audio matched perfectly.Some other wierd things that are happening are the audio levels of some sound effects I have on the timeline sound loud when played in the timeline but are very low volume when the disc is played. I am burning with 5.1 surround sound.

The only thing I can think of that could be causing a problem is that I have a mixture of 60i and 60p clips on the timeline. Could this be the cause of my problem?

Ht Windows 10 professional
HP Omen Obelisk DT 875-1131
Intel Core i7(3.6GHz)
Eight Core
Memory 32 GB
GPU Nvidia GeForce RTX 2080 Super
Power supply 750 Watt

Using PD 11 ultimate build 11.0.03026

Heavytiger

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Nov 11, 2015 23:16

Quote: Some other wierd things that are happening are the audio levels of some sound effects I have on the timeline sound loud when played in the timeline but are very low volume when the disc is played. I am burning with 5.1 surround sound.

That would probably be normal. I'm guessing your sound effects are probably not 5.1, could be even just plain old mono. A mono sound effect will convert to 5.1 on the center channel only, this will be much lower overall volume of the effect. Even if your effect was stereo, when converted to 5.1 during your create disc operation it would pick up a center channel. So how it sounds on playback depends a lot on playback devices, basic PC stereo speakers, full Dolby 5.1 PC setup, 5.1 entertainment system.

What audio formats do you have for the source video and sound effects vs your 5.1 production setting?

Jeff

Heavytiger

Contributor Joined: Jun 21, 2008 10:16 Messages: 474 Offline

Nov 12, 2015 09:22

My sound effects are mp3 and wave. Sound from the source video is whatever AVCHD files use.

HT Windows 10 professional
HP Omen Obelisk DT 875-1131
Intel Core i7(3.6GHz)
Eight Core
Memory 32 GB
GPU Nvidia GeForce RTX 2080 Super
Power supply 750 Watt

Using PD 11 ultimate build 11.0.03026

Heavytiger

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Nov 12, 2015 10:50

Quote: My sound effects are mp3 and wave. Sound from the source video is whatever AVCHD files use.

File types mean next to nothing for this, at least do a properties on the file in the PD media library and look if audio is mono, stereo.... so on.

Jeff

Heavytiger

Contributor Joined: Jun 21, 2008 10:16 Messages: 474 Offline

Nov 12, 2015 12:33

I'm at work so this will be my last respose until tonight.

My video files are stereo. I think the sound effects are mono. What I could do is turn down the video audio to make the sound effects louder. Or maybe put he sound effects on two tracks.

I will read your response tonight.

thanks,

HT Windows 10 professional
HP Omen Obelisk DT 875-1131
Intel Core i7(3.6GHz)
Eight Core
Memory 32 GB
GPU Nvidia GeForce RTX 2080 Super
Power supply 750 Watt

Using PD 11 ultimate build 11.0.03026

Heavytiger

Heavytiger

Contributor Joined: Jun 21, 2008 10:16 Messages: 474 Offline

Nov 12, 2015 21:19

You are correct in your analysis. Some of my sound effects are mono. That explains the low volume as they are only coming out of the center speaker.

I was able to solve my out of lip sync problems by producing a file from clips on the timeline with the same frame rate. I will have to make sure in the future (at least with PD11) not to mix 60p with 60i as that appears to have caused the problem.

thanks for your help

HT Windows 10 professional
HP Omen Obelisk DT 875-1131
Intel Core i7(3.6GHz)
Eight Core
Memory 32 GB
GPU Nvidia GeForce RTX 2080 Super
Power supply 750 Watt

Using PD 11 ultimate build 11.0.03026

Heavytiger

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Nov 12, 2015 21:35

Quote: You are correct in your analysis. Some of my sound effects are mono. That explains the low volume as they are only coming out of the center speaker.

You can easily convert your sound effects to stereo and that should minimize this loss of volume effect. AudioDirector3 if you have that with your PD11, will do it. It just copies the mono channel to both left and right channels.

Just launch AD3 by itself, not from PD, import the sound effect, produce and in the produce menu set "Channels:" from mono to stereo.

Jeff

Heavytiger

Contributor Joined: Jun 21, 2008 10:16 Messages: 474 Offline

Nov 12, 2015 23:11

I don't have it but thanks for the tip. I plan to upgrade soon and purchase audio director

HT Windows 10 professional
HP Omen Obelisk DT 875-1131
Intel Core i7(3.6GHz)
Eight Core
Memory 32 GB
GPU Nvidia GeForce RTX 2080 Super
Power supply 750 Watt

Using PD 11 ultimate build 11.0.03026

Heavytiger

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Nov 12, 2015 23:29

Quote: I don't have it but thanks for the tip. I plan to upgrade soon and purchase audio director

WaveEditor should work too. Simply try opening your mono effect from within PD with WE and it should say it's converting it to two channels.

Jeff

This message was edited 1 time. Last update was at Nov 12. 2015 23:29

Heavytiger

Contributor Joined: Jun 21, 2008 10:16 Messages: 474 Offline

Nov 13, 2015 07:17

Yes it does. Thanks,

HT Windows 10 professional
HP Omen Obelisk DT 875-1131
Intel Core i7(3.6GHz)
Eight Core
Memory 32 GB
GPU Nvidia GeForce RTX 2080 Super
Power supply 750 Watt

Using PD 11 ultimate build 11.0.03026

Heavytiger