KeithKKA Posted December 12, 2020 Share Posted December 12, 2020 Hi, new user here.. I have started working with VP last week. I have loaded one of my videos, and noticed that the sound and the video images are not matching. It plays okay on my phone or laptop. But on VP, the sound goes off ahead (half to 1 second) of the images. Is there any way to correct this? Please help. Thanks. P.S. Only 1 video has such issue. It works fine with other videos. Thx. Link to comment Share on other sites More sharing options...
borate Posted December 12, 2020 Share Posted December 12, 2020 What is the file type of that video? If you take a minute to share it someone here will check... Upload the video to a free server, such as MS OneDrive or Google Drive. Get a shareable (public) link. Copy that link. Post it here or to me in a Private Message via the envelope at the top-right of this forum. If you use Google, be sure to change "restricted" to "anyone with link can view" or we won't be able to access it. Link to comment Share on other sites More sharing options...
KeithKKA Posted December 12, 2020 Author Share Posted December 12, 2020 Thanks, borate for your reply. The file type is mp4. Below is a link to the music video.. please play till music starts. https://drive.google.com/file/d/1p0C-L0rhEu3qlG18FWpfwSdsLXlpEgja/view?usp=sharing Thanks in advance for your help. Link to comment Share on other sites More sharing options...
borate Posted December 12, 2020 Share Posted December 12, 2020 Confirmed and reported. Thanks for sharing. Link to comment Share on other sites More sharing options...
KeithKKA Posted December 12, 2020 Author Share Posted December 12, 2020 Thanks very much, borate. Downloaded the new file and loaded into VP. It works perfectly. Really appreciate your quick response and fix. Just wondering what the problem is.. So I would (if possible) avoid the same problem happening again? Would that be a problem with the source of the recording? I am asking the sender to let me know what camera/phone he recorded the clip.. Link to comment Share on other sites More sharing options...
borate Posted December 12, 2020 Share Posted December 12, 2020 Likely a recording issue, as this was the sole file that had the problem. But some VP versions handle it, so it needs to be tracked down. Please post any info you receive that differentiates this file from others, so it can be passed on to the investigators. Link to comment Share on other sites More sharing options...
KeithKKA Posted December 13, 2020 Author Share Posted December 13, 2020 Hi borate, I was told the video was shot straight from an iPhone 6. Link to comment Share on other sites More sharing options...
borate Posted December 13, 2020 Share Posted December 13, 2020 Thanks. We'll pass it along. Should you encounter same in the future, right-click on the audio track and UNlink from video. Then scoot the track into sync by dragging it to the right (in this case), to make it come in later. Link to comment Share on other sites More sharing options...
KeithKKA Posted December 13, 2020 Author Share Posted December 13, 2020 Thank you.. Will do. My apologies.. I am a new user of VP, would you mind please elaborate a bit more on the steps to "scoot the track into sync by dragging it to the right (in this case), to make it come in later.".. Does it mean to: drag the beginning mark of the audio track to align with the video track beginning mark? Thanks very much for your patience.. Link to comment Share on other sites More sharing options...
borate Posted December 13, 2020 Share Posted December 13, 2020 After UNlinking, here's an easy way to handle sync issues like this... Split the video track only at the point where the bowing begins. Click the chevron to the right of the SPLIT BUTTON, under the preview window, and choose Video Tracks, then the specific track. Then listen to the audio track and create a similar Audio Track only split where the sound begins. To hear audio when manually moving the scrubber (red line) on the timeline, click the AUDIO tab in the toolbar and click SCRUBBING. Finally, line up the two splits, one above the other by dragging the audio track later (to the right). To eliminate gaps in a track, right-click in the gap and CLOSE GAP. Link to comment Share on other sites More sharing options...
KeithKKA Posted December 13, 2020 Author Share Posted December 13, 2020 Got it. Thanks very much.. Appreciate it. Link to comment Share on other sites More sharing options...
Nationalsolo Posted December 13, 2020 Share Posted December 13, 2020 Hi KeithKKA If you notice that that the audio Starts in synch and then gradually gets behind or in front of the video you could also try this.. Unlink the audio Click the audio and select Change Clip speed Increasing the speed slightly.....101.....102 etc. will keep the start as it was but make the audio finish very slightly sooner This can correct audio that is gradually lagging. You could also adjust the speed of the video track to get the same effect. (Slight speed adjustments of either track will not be noticed.) When the synch looks OK Group both tracks so they remain together. Nat Link to comment Share on other sites More sharing options...
KeithKKA Posted December 13, 2020 Author Share Posted December 13, 2020 Good point, Nat. Understood. Very nice to know this.. I assume that we can group the video and audio back again anytime after 'unlink'? Also, just wondering.. what could cause the video and audio getting out of sync along the way (during recording time)? Link to comment Share on other sites More sharing options...
borate Posted December 13, 2020 Share Posted December 13, 2020 If a clip is re-linked after a video speed change, the original A/V sync will be restored on other tracks. Sync creep does occasionally occur, but in this case it seems that this clip began and ended with the same offset. Mystery to be solved. Link to comment Share on other sites More sharing options...
Nicknation Posted December 14, 2020 Share Posted December 14, 2020 Thanks for the useful information. Is there a way to enter the track offset using the keyboard? Dragging the clip left or right to nail that sweet spot is oh so frustrating. Thanks to anyone who can answer or to anyone that can suggest a better technique. Nicknation Link to comment Share on other sites More sharing options...
borate Posted December 14, 2020 Share Posted December 14, 2020 Drag the scrubber (red line) to the desired spot. A right-click on a clip in the bin will reveal several choices. One is PLACE CLIP ON SEQUENCE AT CURSOR. Dragged clips will snap into place at the nearest junction. The scrubber position can be entered numerically. Note, too, that the ||< and >|| buttons jump the scrubber to precise clip boundaries so there's no question that a clip is being dropped at a junction. <Shift-right/left arrows> do the same. Link to comment Share on other sites More sharing options...
Nicknation Posted December 14, 2020 Share Posted December 14, 2020 Excellent Mr or Mrs B, I'll give that a try. Nicknation Link to comment Share on other sites More sharing options...
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