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JimDirt

Help Trying to Pair/Sync a Split Screen GoPro Video

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First post here ...... i have struggled for 2 weeks to get registered here , as the site was having issues with my email address , even though 1 of them met the requirements (no underscore)  , so after a few emails someone finally registered me from their end  ..... (Thank you Josh)

Issue:

I was trying to do a "Split Screen" video in the GoPro Studio , and it only works when both videos are the same length , but if you edit the length , then it won't Pair them , and GoPro no longer supports GoPro Studio  *go figure* , so i downloaded the Video Pad editor and am having the same issue sort of , as i can't find any way to Pair/Sync a Split Screen video   , so how do i "Pair/Sync" 2 GoPro videos  , 1 is from a Hero 3+ Silver , the other is from a Hero 3 Silver  , they are the same format (MP4) , but every time i try to edit them to be the same length by cutting the end of the video off but leaving the beginning the same (videos i am cutting to 15 minutes from about 17-19) , but when i try to get them side by side in the editor , they do not play at the same time  , they are off  , even though i pushed the Record buttons at almost the same time and if i play them individually they seem to be starting at the same time (within 1 or 2 seconds from each other) , so they "should" be close enough in time to sync  , but its way off  , so if i try to move either of the videos in the timeline , then it seems its worse , then i can never get them back to the original frame without what seems to be cutting/losing portions as it scrunched the video up then moving it in the timeline  , its really confusing as to why i can't get them to Pair or sync  , so i have to start over , and end up with the same result every time   

 

The demo videos i have watched on this site to use the editor did not help as they do not seem to be pairing 2 videos , they seem to be just putting 2 random videos side by side , which does not help my situation ..... Basically the videos are dirt bike/ Moto videos from my helmet cam  , i have 1 facing front and 1 facing the rear   , i want to be able to have them side by side on the screen  , so half and half/the same size , one of the front view the other of the rear , but they need to play at the same time per frame , or as close as i can get them , so when viewing you can look at either video and see your in the same place on the track , etc.  , i can get the sound off on 1 so i only hear the front , which is good , but i can't get the videos to match frame per frame , or close enough so it looks even

 

Any ideas on how to do this ??? ( i am using the "free" version)  , as there does not seem to be a lot of info on this subject and the manual does not help at all in this situation  , or am i out of luck ??? 

 

Any help is appreciated .... Thanks .... Jim

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Drop camera one onto the timeline (track one).   Make any needed effects on each - crop, position, scale, etc.

Drop camera two just above - onto the overlay track (track 2).  Make any needed effects.

That may be all that's needed, if the clips have been sized and scaled to fit nicely side-by-side.   But to ensure a clean split screen...

Click the FX button on track one and click SPLIT SCREEN.  Exit the effects editor.  That clip will now be LEFT screen.   Do the same for track two, but click on B in the effects box.

To sync them, drag either track horizontally.

Unless the two cams  were sync locked, they may not have recorded at precisely the same speed.  In that case, even if they're synced at the start they may drift apart.  About the only way to fix that is to drop (cut out) a few frames occasionally - a real pain.

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Hi

You could also right click the longest (slowest) of the two videos and select Change clip speed. Increase this by small percentages  so it shortens to match the companion clip.

Or decrease the clip speed of the fastest clip (the shortest) to achieve the same thing.

Or do both.

Nat

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Thank you for the replies guys ! 

 

borate:  , It sounds like i did pretty much what you mentioned , with the exception of clicking B in the effects box , and when i tried to "drag" them , is when it seemed that it made matters worse and it would never go back to where it was , which is what confuses me   , also  i am not sure what Sync Locked is , i am assuming this is a GoPro setting somewhere in the camera setup that i missed   , .......  does it require a wireless remote ?? , if so i have not purchased one yet  , i just push one on , then the other , by hand , but as mentioned , the time between each camera recording is only a matter of a second or 2 i think , basically the time it takes to reach from one camera on the mouthguard to one on top rear of my helmet  , but i will go over the GoPro instructions  and see what i missed about the Sync Lock , and retry making sure i am using the B ( i don't recall doing that)........... EDIT: , i just looked thru the 3+ Silver manual and i could not find anything on Sync Lock , so not sure what it is or if its only on the newr 4-5-6 cameras

 

Nationalsolo: , I will also try to adjust the clip speed and see if there is a difference   , as i asked GoPro if there was a difference in recording between the 3+ silver and the 3 silver and they said they are the same  , although in reviewing all my footage from each weekend i did notice that as the recording process takes place , they each break up the segments in different lengths , so where one (3+) has a 19:53 and a 6:12 for the split on a single recording session , the rear (3) has a 17:35 and a 8:35 for the split on the same recording session  , so when i set the 2 clips together in 1 timeline one is 26:05 long and the other on the next timeline is 26:10 long , which is only 5 seconds difference , but not sure if its because of recording speed is different between the 3 and 3+ , or it just took me 5 seconds to reach back and push the button to stop the recording on the second camera from the first  , but i would not think that 5 seconds would make that much of a difference  , as when i play them both they are more like 10-15 seconds apart in sequence from timeline 1 to 2 , and that is where i have issues getting them to be around the same frame as the other so it looks like your watching a front/rear view simultaneously   

 

I would think the 10 second difference would only be in the overall length of the total video recorded , not in the time it actually records each segment , which seems to be about a 2 and a quarter minute difference in the first half and a 2 and a eighth minute difference in the second half , which i have no control in adjusting , as its a set time that it splits each video into segments that is built into the software of each GoPro model  , which the only differences i could find was this time recording before each split , and the 30 and 60fps that the 3+ does where the 3 only does 24 and 30fps  , but i do my recording on 30fps on both so that should not be a factor , other than those 2 things , i can't find any other difference between the 3 and 3+ Silver

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When professionals use tape recorders for an event, the machines are slaved to the master recorder or time source, to ensure that time codes match.  That's a function that is usually unavailable in consumer products.  Isolated cameras can record a slightly different speeds, though this may not be an issue with those using digital media.

If cam 1 is late, drag the cam 2 track to the right, to make it just as late as cam 1.

Dragging clips a small distance can make a big difference.  Expand (stretch) the tracks using the slider near the bottom-right of the window.  This will make it easier to move a track in very small increments until the sync is correct.  If a dragged clip snaps back to its original position, hold down the <alt>key as it's being dragged.

If you make a mistake, press <ctrl--Z> - same as EDIT menu|UNDO.  This can be done repeatedly, to undo earlier changes.

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Well , i tried and tried , and i can't get the 2 videos so sync up   , if i drag one to change its placement , then there is only 1 video showing till the second catches up to where i moved the first one   , the issue is  , what it allows you to move by grabbing and dragging  , is way too much   , so when i go to try to put video 2 back at the beginning  , then it seems to also move the other video but in the opposite direction  , i look at video 1 and its way down the timeline now and i never touched it  , all i moved was video 2  ,  , so now video 2 is scrunched together and part 1 and 2 of video 1 are scrunched together , so if i try to pull them apart , then it separates them  , and its even more screwed up , so i just scrap the project    

 

This has got to be the most problematic software i have ever used  , i used to be able to use Windows Movie Maker , and complete a project with effects in about 30 minutes or less   , since i can't use that anymore because Microsoft are morons  , and GoPro Studio does not work well unless the videos are exactly the same length  , then after you edit them for length , so they are equal length , then they won't pair   , and this editor  won't pair at all , so its pretty much useless to me at this point  , unless you guys know of a way to get it to Pair the video timelines , so they actually work in sequence

 

Any other ideas ??? , as i can't get it to work like everyone says it does doing a split screen with 2 different videos (actually 4 , 2 of each because gopro wont make 1 long video like they did on the old original gopros) .. 

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The split-screen effect may not be what you want, as only a half frame of each camera will be shown side-by-side.

If any  track moves when it should not, immediately click <ctrl-Z> (UNDO).  Then disable the track that moved by clicking its lock to the left of the track.

If audio isn't to be affected when setting up the video sync, right-click on its track and UNLINK FROM VIDEO.

Import the first set of clips to the media bin.  Place the cursor (the red line) at the far left.
Right-click the clip that you want on the right and PLACE ON TIMELINE.
Right-click the clip that you want on the left (the overlay) and OVERLAY AT CURSOR.  Only track two will be seen in timeline preview, as it overlays track one.

Click the FX button on the track 2 clip.  The effects window opens.
Click the large green + sign at the top left and click the MOTION effect.

With the preview window tab toggled to TIMELINE mode (not clip mode), move the SCALE slider in the effects window to 51%.  Move the HORIZONTAL slider to  -24%.  The full image on track 2 should be visible in the left half of the frame.

Click the FX button on the track 1 clip. Click the green +, then MOTION.  Again, toggle the preview tab to TIMELINE mode.  Move the SCALE slider to 51%.  Move the HORIZONTAL slider to 24%.  The full image on track one should now be immediately to the right of the image on track 2.  Of course, since the full images have been reduced in size and positioned, they will no longer be full screen.

Then, if necessary, drag the track that is early to the right, so it syncs up with the other track.  This is easier and more precise if the timeline is expanded (stretched) using the horizontal slider at the bottom-right of the main window.  If the track snaps back when moved, hold down <alt> while dragging.  If the other track moves or splits, UNDO, then LOCK it.  (An alternative to dragging might be to apply a speed effect, as Nat suggested.)

When done with the pair of clips, trim the ends so they match up.  Lock those tracks so they're not affected by the next steps, though they likely won't be.

Input the next set of clips to the media bin.

Drag the cursor to the end of tracks one and two.  Right-click on the clip that is to be on the right and OVERLAY AT CURSOR.

Right-click the clip that is to appear on the left and OVERLAY AT CURSOR.  Then apply the same FX settings and procedures to that pair as described above.

With the cursor positioned just above the END of tracks 3 and 4, the third pair of clips can be overlaid in similar fashion to tracks 5 and 6.  And so forth...

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Thank you for the reply and the suggestion   , i copied and saved your instructions to a text file  , so i can have it handy for reference while i am editing

 

I wonder if it would be easier if i edited and joined the split clips for each timeline (2 for front and 2 for rear view into 1 each , then save those separately  , then try to sync those 2 as opposed to trying to sync , as i am now ,  2 videos in each timeline) so that way i only have 2 actual clips to work with (1 front , 1 rear) instead of trying to keep 2 clips in each timeline aligned , as well as trying to sync all 4 clips together ...... Thoughts ????

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Worth a try, as long as it doesn't lead to more sync problems.  Someone else may chime in here with better ideas.

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Hi

Experimented a bit with this using two cameras attached to my bike. One pointing forwards the other backwards.Started both and cycled a short distance along a track with garden wall, lamp standard and tree etc. It didn't matter exactly when the two cameras started as eventually they would be filming the same things.

Ended up with clip1 and clip2. The object was to get both videos in synch and side by side..

  1. Open VP and load both clips.
  2. Clip 1 (forward view) on Track 1 and clip2 (rear view) on Track 2. (Overlay track)
  3. Use Scale effect on both clips  reducing the Horizontal value to 0.5 and retaining the AR at 16:9
  4. Use Position effect to place each clip side by side. This can be monitored is Sequence preview.but set clip at Horizontal -25 and clip 2 at Horizontal 25. They should now line up side by side.
  5. Just give a bit of room for adjusting one of the clips add a 10 second blank clip to the start of Track1.
  6.  Move clip2 on the overlay track to the right and out of the way.
  7. Play the timeline  from the start which will now be just clip1  until a suitable cue is reached  (either audio or video)
  8. Create a Bookmark and drag it to the red cursor line. (If the scissors appear press SHIFT) You now have  the cue marked with the bookmark.
  9. Lock Track 1 (Click the Suitcase icon at the left end. of the track)
  10. 2rnQ8.jpg
  11. Play the overlay track in clip preview and stop when same cue appears.
  12. In clip preview click the START marker. This will truncate the clip starting it at the cue
  13. Now drag clip 2 left so it starts at the bookmark. (It will jump to the line)
  14. In clip preview grab the Red START marker and drag it left to uncover the masked but of the clip.

The two cues should now be in synch. (At least at that point) It's a bit phaffy and there is probably another way of doing it, but this method is logical.

Nat

 

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Wow ! , thank you for that detailed walk thru   , I will try that and see if i can get anywhere with that way   ,  you used 1 clip each correct , not 2 clips in each timeline correct ?? , so is it easier to sync when its only 1 longer clip as opposed to trying to move 2 ??  , in other words should i take the 2 clips  , save them as one  , then use the completed combined clip in each timeline and then do what you did ??

2 hours ago, Nationalsolo said:

Hi

Experimented a bit with this using two cameras attached to my bike. One pointing forwards the other backwards.Started both and cycled a short distance along a track with garden wall, lamp standard and tree etc. It didn't matter exactly when the two cameras started as eventually they would be filming the same things.

Ended up with clip1 and clip2. The object was to get both videos in synch and side by side..

  1. Open VP and load both clips.
  2. Clip 1 (forward view) on Track 1 and clip2 (rear view) on Track 2. (Overlay track)
  3. Use Scale effect on both clips  reducing the Horizontal value to 0.5 and retaining the AR at 16:9
  4. Use Position effect to place each clip side by side. This can be monitored is Sequence preview.but set clip at Horizontal -25 and clip 2 at Horizontal 25. They should now line up side by side.
  5. Just give a bit of room for adjusting one of the clips add a 10 second blank clip to the start of Track1.
  6.  Move clip2 on the overlay track to the right and out of the way.
  7. Play the timeline  from the start which will now be just clip1  until a suitable cue is reached  (either audio or video)
  8. Create a Bookmark and drag it to the red cursor line. (If the scissors appear press SHIFT) You now have  the cue marked with the bookmark.
  9. Lock Track 1 (Click the Suitcase icon at the left end. of the track)
  10. 2rnQ8.jpg
  11. Play the overlay track in clip preview and stop when same cue appears.
  12. In clip preview click the START marker. This will truncate the clip starting it at the cue
  13. Now drag clip 2 left so it starts at the bookmark. (It will jump to the line)
  14. In clip preview grab the Red START marker and drag it left to uncover the masked but of the clip.

The two cues should now be in synch. (At least at that point) It's a bit phaffy and there is probably another way of doing it, but this method is logical.

Nat

 

 

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Hi Jim

" ---you used 1 clip each correct , not 2 clips in each timeline correct ?? "

As I understand it (perhaps I might be wrong) you have two cameras, one filming forward and one backward and each produces its own normal video...not split screen or anything? If so my answer is yes, each video goes on its own track.

. For trying this out I used the same basic setup. But it was pretty crude to say the least. I just attached the cameras to my bike with  duck tape!  They weren't geometrically in line or anything.  There were just  two clips, one from each camera. As you can see from the image each clip went on its own video track.  Forward view on Track 1 and rear view on Track 2 as an overlay.

Note: If this setup is similar to what you have you could change the steps slightly..

  1. Clip 1 to Track1. Clip 2 to Track 2
  2. Scale and Position clips as mentioned in my post.
  3. In Clip preview play clip 1 to a synch point and set a bookmark at the cursor.
  4. In Clip preview play clip 2 to the same point and then set the START marker.The left portion of the clip will turn dark
  5. On track 2 drag the start of the truncated clip (the cue point) to the bookmark where it will join up.
  6. Now back in clip preview (still with clip 2) move the START marker to the left to  to restore the truncated section.

2ryVc.jpg

No need  really to lock the track, and probably no need to add a blank at the start. (That was just to give enough room to move track 2 to a point in front of track1 if needed). The bookmark is used as a marker point as the cursor will move when you preview the clips.

In my rough setup objects leaving the field of view of the forward camera don't appear in the field of the rear camera at the same instant but you can see I chose that point as my "synch" point where the lamp post just left the forward FOV and just entered the rearward FOV. You could choose any point using this method including an audible cue like ringing my bell. (Note also that the cameras aren't set correctly upright!)

Nat

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40 minutes ago, Nationalsolo said:

Hi Jim

" ---you used 1 clip each correct , not 2 clips in each timeline correct ?? "

As I understand it (perhaps I might be wrong) you have two cameras, one filming forward and one backward and each produces its own normal video...not split screen or anything? If so my answer is yes, each video goes on its own track.

. For trying this out I used the same basic setup. But it was pretty crude to say the least. I just attached the cameras to my bike with  duck tape!  They weren't geometrically in line or anything.  There were just  two clips, one from each camera. As you can see from the image each clip went on its own video track.  Forward view on Track 1 and rear view on Track 2 as an overlay.

Note: If this setup is similar to what you have you could change the steps slightly..

  1. Clip 1 to Track1. Clip 2 to Track 2
  2. Scale and Position clips as mentioned in my post.
  3. In Clip preview play clip 1 to a synch point and set a bookmark at the cursor.
  4. In Clip preview play clip 2 to the same point and then set the START marker.The left portion of the clip will turn dark
  5. On track 2 drag the start of the truncated clip (the cue point) to the bookmark where it will join up.
  6. Now back in clip preview (still with clip 2) move the START marker to the left to  to restore the truncated section.

2ryVc.jpg

No need  really to lock the track, and probably no need to add a blank at the start. (That was just to give enough room to move track 2 to a point in front of track1 if needed). The bookmark is used as a marker point as the cursor will move when you preview the clips.

In my rough setup objects leaving the field of view of the forward camera don't appear in the field of the rear camera at the same instant but you can see I chose that point as my "synch" point where the lamp post just left the forward FOV and just entered the rearward FOV. You could choose any point using this method including an audible cue like ringing my bell. (Note also that the cameras aren't set correctly upright!)

Nat

What i mean is , when filming with the GoPro 3 or 3+ Silver (i have both , 3+ on front of helmet and 3 facing rear) , as you know  , they film in short clip segments , not one continuous video like the original non HD GoPros did , so in getting the footage of the track ride for 19+ minutes , it makes several clip segments for each camera   , so to get 15 minutes of video , it takes 2 clip segments per camera  , so i have been putting 2 segments on each timeline , and that is why i asked , would i be better off , doing a "new" project , and take each 2 clip video , and making it 1 longer one  , so instead of having a 8 minute and 5 minute together on one timeline , i make that 1 solid video , and do the same for the rear facing video  , then bring them into a "new" project , as 2 video clips , one for each timeline , as opposed to how i have been trying it using 4 clips (2 front on 1 timeline , and 2 rear on a second timeline) and then following your instructions ????   , follow ???

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Hi Jim

" ---as you know  , they film in short clip segments , ---"

😃 I didn't ... but I know now! 😄

Well, if the clips from each  camera follow one another without a break like chapters then just put the two clips from the first camera on the same track in order and group them into 1 clip. (Or you could make a sequence of them and reload the sequence back as one clip.) Do it for each camera and you will have the two clips to try the steps above with.  Borates link has some useful info and as he says "Wont hurt to try"

Nat

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