Hello,
I recorded a conference with my Sony camcorder that saves files as MPEG2.
Since I only had a single camera and the speaker didn't provide the PowerPoint slides afterwards, every time a slide was shown through the projector, I had to move the camera from the speaker to the slides and back a few times during the talk.
So now I need to edit the file to get rid of those movements, and display the shots of the slides long enough each time so the video is steady; I don't know how it's called ("video overlay"?).
Is there a newbie-friendly, free NLE that can do this, such as VirtualDub or AviDemux, or do I have to buy a commercial solution such as Sony Vegas Studio?
Thank you.
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Last edited by yetanotherlogin; 17th Mar 2014 at 16:26. Reason: Title was misleading
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Honestly, for true prosumer insert editing (which is what it sounds like you will need to do), I would consider Sony Vegas Studio to be MORE newbie-friendly than Vdub or AVIDemux. You really want an NLE that supports stills (as freeze-framed video, or in sequence as video) and has multiple video tracks to facilitate easy synching and overlay, graphically, drag-n-drop & on the fly. How you overlay will depend on your tastes: PIP, SplitScreen - w/ or w/o wipes, cutaway insert- w/ or w/o dissolves, etc)
<edit>BTW, I've done TONS of these kinds of conversions and have posted a number of times here about best practices for converting PPT to video. Please refer to those if you need help, and ask back if you have further questions.</edit>
Scott -
Unless that projector was an IMAX, you're rowing a boat upstream in strong headwind. (With holes in the paddles)
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Scott, he didn't use PPT files. He videoed the slides while they were shown on a screen. He pointed his camera to the screen. Looks like he will have a fun time editing out those movements from speaker to the screen. I second using a friendly NLE like Vegas Movie studio but it will take time to do it correctly.
Extraordinary claims require extraordinary evidence -Carl Sagan -
Oops, missed the part about not getting the slides...
Freezeframe on the few good moments where you ARE centered on the slides. That's about as good as you can do.
Or re-create the slides yourself (from looking at the video reference) and export those. Been there, done that.
Scott -
Thanks for the infos.
I installed Sony Vegas Movie Studio HD Platinum 10, but have been struggling for an hour simply to trim the beginning and the end of a video.
- At this point, I selected a segment of the video track using the "yellow triangles" (for lack of a better word) above the timeline, but can't find how to tell Vegas to delete this selection from the video. I assumed it'd work like editing audio in Audacity, but it doesn't.
- Next, I'll have to extract the parts where I shot the slides on the screen into an external file, then insert this external file onto the original file so that viewers don't have to see the sections where I move from the speaker to the slides and back.
Since I'm probably not the first newbie to need this, is there a good tutorial that shows how to perform those basic tasks?
Thank you. -
To delete a selection, press delete.
Use "Screenshot" to get a PNG of the projection. Take the PNG into a graphics program, crop it, and optimize it. -
Thanks for the infos.
At this point, using SHIFT+right arrow to define a loop region, I selected the part of the video track that I wish to cover up with a freezed frame of the PowerPoint slide shown during the conference.
In the Preview part, I stopped the video, and took a snapshot using the "Copy Snapshot to Clipboard" icon.
Now, I'd like to paste this snapshot into the loop region so that it'll cover up the video track, but Edit > Paste is greyed out, and right-clicking on the Loop Region icon (section between two yellow triangles) doesn't offer some Paste or Insert option either.
Is it really required to save a video snapshot into a JPG file, import the file into the project, and then insert it in the Loop Region, or is there a better way?
The "Show Me How" help files doesn't seem to contain a section to achieve this.
Thank you.
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Edit: The video shown in the Preview part is 160x120 while the video is 720x576, so the snapshot doesn't match the size. How can I copy a snapshot in 720x576 so it fits the video track?Last edited by yetanotherlogin; 17th Mar 2014 at 15:50.
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When you take a snapshot it immediately appears in your source window. Just drag it down to the next highest video track and extend the ends to fit your marked region. (Marking the region isn't strictly necessary -- but go ahead and use it as a guide if it helps.)
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All those thumbnails up on the left. They're in your source window. It's more sensible to use save snapshot to file instead of copy snapshot to clipboard. Notice how a new one appears whenever you make a snapshot. Drag it to your timeline (in your case to the video 3 track) and extend the ends until they match your loop region.
Last edited by smrpix; 17th Mar 2014 at 16:46.
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Nothing happens in the Source window when I click on the "Copy Snapshot to Clipboard"
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That's what I did previously, but for some reason, the JPG file is 160x120 while the video is 720x576.
Besides, JPG is lossy, so it won't look very good after pasting over the video track.
Is this the only way to take a snapshot of the video track and paste it to cover several seconds in the track? -
I'll install the trialware version of Movie Studio 13 and see how it's done there.
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You need to set your preview monitor to best resolution/full resolution (720x576) And be sure your project matches your footage in the first place.
Save it as png if you prefer. In either case it won't look any worse than what's already there.
No, you can export to any number of other programs to manipulate the image -- photoshop, After Effects, Irfanview, etc, etc, and reimport it, --but this is the most direct. -
You're not going to find a specific "How-To" for something like that.
I can see from that screenshot that the video is very poor quality, and the PowerPoint slide will never become legible.
Maybe that doesn't matter though, so the idea is:
A) Take a snap to your desktop.
B) Minimize Vegas, then open the snap with a graphics software.
C) Do your resize, de-skew, sharpen, contrast, whatever.
D) Go back to Vegas and drag it to the timeline.
Tip! Set the project to 2K, and select "Best/Full" before taking the snap.
Actually you can do all the graphics manipulations right in Vegas. Skew is part of "Deform".Last edited by budwzr; 17th Mar 2014 at 17:08.
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Last edited by smrpix; 17th Mar 2014 at 17:06.
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Thanks, that was it.
Rendering into an MP4 file should take about an hour
The video quality was good enough for what I needed to do. It was the first time I zoomed in onto the screen to catch the PowerPoint slides, but it turns out it wasn't a good idea since the embedded microphone picks out the noise made while playing with the zoom button. Next time, if I can't get the slides from the speaker, I won't move the camcorder and simply take pictures with my picture camera instead.
Thanks a bunch. -
The rendering is done now, and the inserts work fine.
However, I noticed that about 25mn in the video (total time: 1hr45mn), audio starts being slightly out of sync. FWIW, the first still picture insert occurs around 5mn and the next one around 40mn, and I watched the MP4 movie with the latest release of VLC.
Did I choose some wrong settings in Vegas?
Code:c:\>ffmpeg.exe -i MyProject.SonyAVC.mp4 ffmpeg version N-58043-g0062869 Copyright (c) 2000-2013 the FFmpeg developers built on Nov 12 2013 18:01:41 with gcc 4.8.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib libavutil 52. 52.100 / 52. 52.100 libavcodec 55. 41.100 / 55. 41.100 libavformat 55. 21.100 / 55. 21.100 libavdevice 55. 5.100 / 55. 5.100 libavfilter 3. 90.102 / 3. 90.102 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MyProject.SonyAVC.mp4': Metadata: major_brand : mp42 minor_version : 19529810 compatible_brands: mp42isom creation_time : 2014-03-18 10:28:44 Duration: 01:41:41.60, start: 0.000000, bitrate: 2130 kb/s Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 12 8 kb/s (default) Metadata: creation_time : 2014-03-18 10:28:44 handler_name : Sound Media Handler Stream #0:1(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480 [ SAR 1:1 DAR 4:3], 1999 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default) Metadata: creation_time : 2014-03-18 10:28:44 handler_name : Video Media Handler
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Edit: The keywords I was looking for were "audio drift". FWIW, my camcorder uses FAT32 so the original video was actually four 2GB files that I imported into Vegas and appended to build the final 1h41 file.
Could it be that simply copying the four files isn't enough, and Vegas requires some kind of reformating when adding multiple files even when they were shot by the same camcorder?Last edited by yetanotherlogin; 18th Mar 2014 at 05:04.
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Last edited by smrpix; 18th Mar 2014 at 06:34.
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I have none, never pretended I had any. I'm just Joe Average wishing to combine a few MPEG videos into a single file, without having to spend weeks learning to do this if it can be avoided.
It just happens that there doesn't seem to be anything between Windows Movie Maker and sophisticated apps like Vegas or Premiere. -
Yes, Vegas Movie Studio pretty much IS the intermediate step between WMM and Vegas Pro or Premiere Pro. And yes, there is a learning curve, but think about what you're doing -- you're extracting stills from a video, relaying the stills to cover camera moves, timing them out and keeping the soundtrack rolling. That's pretty sophisticated stuff.
Typing seems pretty easy too, but I bet you didn't get as quick as you are overnight.
You're doing great.
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