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Video Production

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  • Hi Wiley. Thanks for helping. In Clip Attributes/Field Dominance all the clips are set to Auto-progressive. I think that means they’re interlaced? The problem clips are all 29.97 or 30fps but two clips that youtube handles well are also 29.97 (There are other clips at 25 but they’re ok on youtube too.) Here’s one of my test uploads: youtu.be/ZJEo1w4oE8o . The opening shot is particularly blurred. There aren’t sharp images till 1’ in. I could put the original render in Google Drive?? Other export settings haven't helped. All the best Commented Jun 18, 2023 at 15:29
  • The main issue in the first shot is definitely over-compression. That image is completely full of moving detail, so youtube (or even the NLE) will have over-compress to meet its target bitrate. Compare that image full of grass to the next shot, where there are large patches of plain blue sky that barely move- a huge amount of data saved, which can be used to improve details in other areas of the image. Commented Jun 18, 2023 at 17:54
  • Another thing that can greatly affect compression artifacts is color- if there is a similar color tone/level to all of the detail, such as in low-light shots, even good compression is more likely to show visible artifacting. Commented Jun 18, 2023 at 17:59
  • Lastly, people sometimes suggest adding noise/grain to videos- this is sometimes bad advice because in theory the youtube compressor will waste bits trying to preserve the noise, ignoring "real" image details. However it could improve how detail is preserved in low-light or similar-color shots. If you've added noise, try removing it, or if you haven't, try adding it. Commented Jun 18, 2023 at 18:05
  • I don’t have noise/grain in my version of Resolve unfortunately. So there's nothing I can do to fix the 1st shot? A pity - I’ll need to replace it. And it sounds like there’s nothing more I can do to the ‘balloon woman’ shots either. But thanks again Wiley. I appreciate it! Commented Jun 19, 2023 at 15:03