László Kovács
Forum Replies Created
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Hi,
[Michael Fernandes] “Also, in terms of the 0 – 255 dynamic range stuff, how do you check that before exporting through Vegas?”
On the video scope “RGB Parade” it’s easy to see the dynamic range of the colors, I like to use it so.
The “Waveform / Luminance” also gives good hint on levels, if it goes over 100% or below 0, you can be sure there are wrong levels.I do my stuff in 0-255 range. When I import the media from the cameras, always have to apply some color correction. It is always needed anyway, so I bring down darkest black to 0, and get whitest white to 255.
Many times I need to import a presentation, this can be series of PNG’s, or other formats, may be pdf or sometimes I get a ppt file and make the movie from it myself (using Lagarith RGB) , so it’s mostly 0-255 too.
Before I go to render the project, add a video output FX “Levels” (It’s above the preview screen).
I set it to the preset “computer to studio RGB”. That stretches the whole thing into 16-235.This is my method, probably there are others. But I used this way for years, and works well for me.
Best regards
László Kovács
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Hi,
How is the lag like? Is is constant, for example 0,5 sec off through the whole video, or is it crawling, so when the video starts, it is in sync, and slowly gets out of sync?
Does this: “sometimes on computer” mean always the same computer with same player software, or different computers, with different players mean? If it means the latter, is it possible, that they have the same player software? (In that case I’d blame the player).
“On mobile” means all mobile including iphones, and android devices, or just one specific brand/model?
Did you try to play that video on other mobiles?
Did you try to play other videos on that specific mobile? (Do they also lag?)Best regards
László Kovács
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Hi,
I assume you did make sure your video does not have illegal levels. (I mean black below 16 and white above 235).
I know this does not help much, but I think, if your video looks great everywhere but not in Google Chrome, then the culprit is that browser. I don’t think you can do anything about it. I wold make a note in the videos description, that the video isn’t that green, it’s just displayed wrongly by G.C.
(Offtopic sidenote: I know when Chrome started, it was an ultrafast and lightweight browser. Nowadays it isn’t, but the opposite. In fact, it is one of the most resourcehungry browsers. Don’t know why still people love it?)
Best regards
László Kovács
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Before you run out and spend a lot of money…
I’m not sure a gimbal is really what you want. That tries to keep your cam to face to a constant direction, regardless of how you turn with the bike.
Additional it won’t attenuate vibration.
(So at least not a 3 axis gimbal.)Try a shock absorber before, if you really need the cam to be mounted directly on the bike.
And then the ND filters.Best regards
László Kovács
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Found it. The article.
Ok I remembered half way wrongly.
It’s about drones, but what they carry look very much like action-cams.
So it can be valid to Gopro’s as well ?https://library.creativecow.net/spottedeagle_douglas/UAV-drone-filters/1
Best regards
László Kovács
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Yes, there is. Decrease the motion of your footage.
Most important, stabilize your cam. Wear it on your head, so it won’t take all the vibrations from your bike.
When you mount the cam directly on your bike, it takes all the vibration from the bike, so the codec runs out of bitrate on every single frame.
Second, you can hide a bit the very fast motion with motion blur. I don’t mean it in the post, but when you actually shoot.
Action cams are full auto, so when there’s a lot of light (usually outdoor it is the case), they use very fast shutterspeed.
Using ND filters, it is possible to trick them using slower shutterspeed, which results in slight motion blur on your shots.
If I remember correctly, Douglas Spotted Eagle had an interesting article about this topic, but I don’t know where I read…
So if you have a slight motion blur, that reduces the moving detail in your video, thus encoder won’t run out (so quickly) of bitrate, and this will help avoid pixelation. And motion blur looks more natural than pixelation.
Third, use shorter action-cam events (as short as possible), and put some more static shots between them.
I think this will help the variable bitrate encoder as well as it enables the viewer to have a bit “rest”, which I felt so much lacking in your first video.Best regards
László Kovács
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I found one myself :))
https://www.youtube.com/watch?v=zOIk-Ddg1E8Do you think it is not pixelated? It isn’t, where the footage is not moving extremly.
But where the motion is too fast…
Look at some still pictures I did via screenshot ?
Best regards
László Kovács
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Hi,
Can you login to Magix service center?
https://www.magix.com/us/support/my-service-center/If you can, under the “My products” you will find your serials.
If you can’t login, wait for the Magix support answer. Their response time is about a week or so :(((Best regards
László Kovács
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Hi,
You could have paid the half for a desktop PC and have the double horsepower. Laptops are balanced towards energy efficiency, not towards performance. But that’s another question.
Getting back to ontopick:
Can you show us a link, where others “put up crystal clear gopro footage”?
Without knowing, I suspect (even I could) bet, they contain much less motion.
The motion your footage contains is really extreme.
Of course you can upload a 50Mbps video to youtube (overkill), but it will get pixelated too (after upload, when youtube converts it).
From here:
https://support.google.com/youtube/answer/1722171?hl=en
what I read is that if you encode in bitrate higher than 15Mbps, won’t make any difference, as Yutube converts them internally.
So try to render to 15Mbps AVC, and see if it is better.
If it’s still not satisfactory, I’m afraid you have to look for another video sharing portal, which can hold higher bitrate video.Best regards
László Kovács
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Hi,
Vegas doesn’t do this.
But some audio drivers may do some kind of normalization by default, which in effect is the same.
On my notebook I had to dig into a lot of settings on audio, until I could get rid of this behavior.Best regards
László Kovács
