MCE with all audio from one camera

[AIMCraftworks]

I used multi camera capture to shoot an instructional video with 3 webcams. Because I wanted the audio to be consistent I only recorded from the camera directly in front of me. I finally got MCE working and edited the video. I selected Camera 1 for main audio and it's perfect in MCE, but back in the editor there is no audio in the other two camera's clips. In retrospect I realize that the "main audio" selection is probably to sync the editing. Nevertheless, I need to get the camera 1 audio to play throughout the video. Any suggestions on how to do that? I tried dropping the video in the audio slot in MCE but that did not work. I was able to drop it in the main video editing window, but the audio was out of sync.
Any help would be appreciated.

Anthony

[lata]

Anthony, and welcome to the forums

If you have selected Camera 1 as the audio source that should be used
Are you saying there is no Music clip on the main VS timeline
All video clips on the top timeline will be muted
Make sure you are playing in Project mode

The audio clip on the Music Track should be from camera 1, right click that clip and choose Locate on Computer, that should find the video clip for camera 1

MCE - If you have removed frames from the recordings then the Music clip will also be cut into the appropriate sections corresponding to the video clips, retaining sync.

[AIMCraftworks]

Thank you for the reply, Trevor. I don't think there is a music track, but I messed around with a number of things. I'm going to feel like quite the idiot if the problem was that I wasn't in Project Mode. I'm away from the shop until this afternoon, and I'll look at what you said when I return and get back to you. Thanks again.

Anthony

[AIMCraftworks]

Well, don't I feel like a f**ng moron! Not sure what I did before, but I just started a new project and brought the MCE file in and I got what you showed and the audio played all the way through. Unfortunately it drifted out of sync with my mouth about the 3rd time it cut back to camera 1. I don't think I cut anything out, but it's not out of the question. I'm going to go back and re-edit the whole video and see if that matters. It could also be because I don't think I synced the video clips in MCE, because every time I tried the program crashed. So I'll go through the process again and check back with you.
(I was a little startled because the guy with the guitar in the still you posted looks like my buddy Trevor! But he's in NY, not the UK.)
Thanks again,
Anthony

[lata]

The band there is probably from the USA, somewhere, they were MCE test files provided during testing, some years ago now.
In retrospect I dont think I should have posted those. Upps

As such I have removed the image

The MCE timeline has a set frame rate, this is taken from the original project settings

I always change the project settings to use Camera 1 video, that way the MCE frame rate matches the camera 1 video frame rate

Having different frame rates may cause some sync issues, so just to be sure always match the project to the video

[AIMCraftworks]

I can't get past the crash when trying to sync the files. I'm syncing them all at 00:00, since they were all shot simultaneously with VS Multi Camera Capture. So, should I need to sync them? Can I just skip that step and lock them all in place? Or sync for date and time. I tried that and re-edited the video. By the time I get halfway (the video is 22 minutes or so) I'm starting to drift out of sync. By the time I get to the end I look like a badly dubbed foreign film. Since the audio is from the track that has my face in it, I don' t think it's an original sync issue. I went back and looked at it in MCE and there are no sync issues. It's only when I "OK" out of that and am in the main timeline. I looked for a Frame Rate setting, but didn't find it. Where is that? I am currently going through the timeline and manually syncing the audio by cutting it and shifting to line up the waveform, but it is tedious and shouldn't be necessary. Any ideas? Thanks!

Anthony

[lata]

You seem to have a lot going wrong here, I doubt that the frame rate would cause the crash, but here goes

First right click camera 1 recording and choose properties , what are they?

The project properties are usually automatically set when adding the first video to the timelines, this is activated by setting the Show Messages in Preferences (F6) although the option should be set by default
Start a new project
Insert camera 1 video to the top timeline, you should see a message to match the properties.
Otherwise go to Settings – project properties and edit the details to use the same FPS as your video file. example 24 bits, 1920 x 1080, 30 fps
To view the video files frame rate, right click the video clip for properties.
Clear the timelines by removing the video

Launch MCE, I usually select my recordings in the library, right click for Multi Camera Editor
The sync option is set to Audio – camera 1 but can be changed to other options.
So what happens if you hit the Sync Icon, the two circular arrows icon.
All syncing and cutting / removing frames should be done here.

Manually syncing on the main timelines
If you sync the beginning of the clips then navigate to the ends they should remain in sync.
It does not make sense that recordings made at the same time can drift out of sync.

Once you make cuts and remove sections then that will cause a sync issue
Again All syncing and cutting / removing frames should be done using MCE

You can view the wave form of the audio which may help in checking for sync, switch to Sound Mixer, option on tool bar above the timelines.
When you make a cut to remove a section of the top track the remaining overlay clips will be out of sync.
Ripple Editing should be applied to auto sync the tracks so when you delete a section all clips should remain in sync, however what you are doing may not allow Ripple editing to work efficiently.

I do not really understand your approach in using the main timelines to cut and remove sections.
Lets assume you wish to remove 10 seconds from the recordings, make a cut through all timelines beginning and end of the 10 seconds, delete the overlay track 10 sec clip
With Ripple Editing applied, deleting the top track 10 seconds will cause all tracks to move left keeping audio sync.

By the way Ripple Editing is applied from the left of timelines the padlock icon, select all timelines

[AIMCraftworks]

Thanks, Trevor. You've given me a lot to work with. Unfortunately because of the time difference I see your messages early in the morning when I head to my day job. So I don't get to work with it until evening.
Just for clarity- I recorded 3 cameras using MC capture. So all cameras started together and ended together. Only one camera recorded audio, although for syncing purposes I'll change that next time. I was attempting to sync with markers, marking the beginning of each track. On hitting the sync button is when the crash happens.
The only editing I did was in MCE, and was only switching from camera to camera. No portion of the video was removed on any camera. I just switched views. When played through in MCE all audio and video is in sync. After hitting OK and viewing the project in the main timeline, about halfway through the video and audio start to drift out of sync. I have, at this point, still not removed anything from the video. We agree that it makes no sense that this should happen, especially since what's out of sync was recorded on the same camera. It was in desperation to come up with a usable video that at this point I went into audio edit mode, unmuted the video clips that had audio, and cut the audio track apart, using the waveforms to manually sync the audio and video. Late last night I succeeded and rendered the video. I haven't watched it, as I left it rendering and went to bed. I'll report back after I watch it.
Anthony

[lata]

Today i tested multi cam capture lite with unusual results where the frame rate was not as expected.
I set the recording to 25fps yet the video was recorded using 21.12fps

Just wondered what frame rates were used with your recordings

[AIMCraftworks]

I'll check tonight and get back to you.

[AIMCraftworks]

The three cameras match properties, at 30 fps. But the default for the project was 29.97 fps, which is what the project rendered at. I took the default when I set it up. Could that be the problem? It still seems wrong, since the audio and video were from the same track.

[lata]

Hi
Your properties for the video and MCE look normal to me.
Yes the project properties are using the lower 720 x 480 size, but its just a container.

How do you open the MCE project?

Using MCE, this is what I do
1 / create a new library folder and import my video files
2 / using camera 1, the main recording drag to timelines for Show Messages to match the Project Properties
3 / remove that clip, project properties using same frame rate as camera 1
4 / select all video files Click + Shift Click
5 / right click selection for Multi Cam Editor, that opens the MCE Source File Manager
6 / clips should be in order other wise re-arrange by dragging camera views, OK opens the MCE
7 / Cogwheel top left for “save as“ giving your project a unique name.
8 / after setting the camera views choose OK, returns to the timelines
9 / a MCE.VSP is saved to the library
10 / drag this clip to the timelines to view your MCE files.
11/ save that project as your working project.

I do not think you are doing anything differently to that and if so I doubt will cause the out of sync.
I notice the recording are using Mjpeg, have you tried changing that to use AVC, advanced tab – Encoding.

You could share your Front .mov recording with us, although I think may be quite large.

Unfortunately I do not see anything that would cause the audio shift.

Program settings
Can you disable the Acceleration options from Preferences (F6) performance tab to see if that makes a difference.

I run a few tests recording to Mjpeg as I normally use AVC that records as Mp4

[lata]

AIMCraftworks,
I have not been able to test MCCL any further with issues of my own
Can you tell me what version you are using, Cheers
With MCCL running select the question mark icon (?) to the top right