Thank you. That seems to be the consensus with most of the YouTube comparisons I have viewed (although, not with your technical detail).

Cheers.

I have been using Topaz Video AI to upscale 720 x 480 .AVI files to HD 1920 x 1080. With the new release of DaVinci Resolve 19, I see a ‘super scale’ upscaling feature built into DVR 19 that also uses AI. I also see that there is a 4x NVIDIA RTX Video option for those of us with fast NVIDIA cards.

Does anyone have experience with both, such…

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Great tips. Thank you.

Your method does work to solve my problem. (I have never used ‘conform lock’ previously.) My only regret here is that it appears I can’t select and conform-lock multiple clips simultaneously … I need to work through the timeline clip-by-clip.

Fantastic, however, that you have provided a solution.

Thank you,
Karl Buhl

I have several previous projects where the sources are .AVI files. I have been updating the old .AVI files with video upscaled in Topaz Photo AI.

Following the same procedure consistently, I am seeing different results in DVR 18.6 when replacing selected clips. Questioning if anyone can identify what the problem is.

1. Open previous project in…

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Tod, thank you for the info about Brightsign.

For anyone who has a similar problem—trying to play your own edited 4K or HD MP4 videos through an A/V receiver for improved audio (vs. playing through a TV), I ended up purchasing the Dune-HD Magic 4K Plus. I’m very happy with this unit.

I connected the Dune-HD via HDMI out to the Marantz ‘media p…

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Tim: To ensure you’re not overlooking the obvious: make sure DaVinci is using your graphics card as the primary processor (not your cpu). This can be configured in settings.

Hi Riccardo. Ideally, yes, I was looking for an XBOX app that would play 4K MP4 videos connected via an SSD USB. However, there are no apps that play 4K video (I have tried them all).

I am therefore researching hardware devices that will allow me to connect an SSD into my Marantz AV receiver via HDMI. (None of the Marantz units will directly…

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This is somewhat tangential to the DaVinci Resolve forum, but can anyone recommend media player hardware for playing 4K Ultra MP4 video via a USB SSD drive?

I previously played my videos using VLC media player app with the SSD plugged into the USB port on the XBOX, but the VLC apps no longer works, and my Marantz SR6015 won’t play video directly.

T…

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On the VHS side, several years ago I transferred decades of 8mm video cassettes to digital files. That was a head-scratcher to figure out how to capture all that old technology. Fortunately, I several old 8mm video cameras—but one of them had an obsolete firewire output. I ended up purchasing a FireWire card for my PC from Amazon. I had an o…

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OK, yes you did indicate a Mac. So much for my speed reading class. Have you tried decreasing the timeline playback resolution?

Edit Tab > Playback > Timeline Proxy Resolution > (Try “Half” or “Quarter”). This only affects timeline playback resolution, nothing else.

Also, are you using a graphics card, and have you updated your driver recently?

If you’re using a graphics card, have you pointed Davinci Resolve to the card as your primary GPU in Preferences? From the menu system:

> DaVinci Resolve > Preferences > System (at the top of the pop-up window) > Memory and GPU > Then point to your graphics card in the…

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When you’re in the color tab:

1. Select the clip that you want to copy the colors to.

2. Right-click on the clip from which you want to apply the colors, and click ‘Apply Grade.’

OR, check out “Power Grade” in various YouTube videos.

Hi Kenneth. I logged into Creative Cow today, read your question, and empathize. I don’t have a clear answer, but I have a few ideas.

The fact that you are seeing the video artifacts in both source and timeline viewers suggests a hardware problem—to me, anyway.

The first flag for me is that you are attempting to view UHD (3840 x 2160) video, b…

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Michael—I purchased the pro version of the Voxengo resampling software (I like to support boutique developers), converted the audio clip from 44.1 / 16-bit to 48 / 24-bit—and I still had the same problem. At that point it should have worked, so I concluded that the DaVinci file was corrupted.

I deleted the file, started from scratch, imported the…

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Jean, try doing a test render of that segment to determine if the red dot appears in the final rendered video. My guess is that you won’t see it in the test render.

Jean, the green fill of the clips indicates that DaVinci sees the files on your hard drive. Otherwise you would see the red missing media icon. So, the only thing that comes to my thought is that the files are corrupted. One test is to open the source files on the hard drive and see if they play outside of DVR. That would indicate if the…

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Hi Michael. Thanks for your suggestion.

The audio clip was originally sampled at 44.1. I used Audacity to resample up to 48 (Audacity makes re-sampling very easy.) The problem continued with the up-sampled 48 kHz clip.

I added a separate audio track for this new 48 kHz clip, used the audio waveforms to visually sync with the video, and ran a…

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I imported a stereo audio music clip into DVR Studio 17. The audio clip plays normal speed outside of DVR as a .WAV file or .MP3 file. The clip plays normal speed in the edit preview window of DVR (upper-left corner of the edit tab). The audio clip plays normal speed in the fairlight tab.

However, when I paste the audio clip into an edit track…

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I believe Shift + right arrow advances 1-frame in DaVinci Resolve.

One final, follow-on question. The final AMD-rendered files are 40%-50% smaller than the same files rendered via the Intel i9.

Why would the final AMD-rendered file size be so much smaller? Am I sacrificing video quality using the AMD Radeon RX 570 video card?

Thank you,

Karl

Hi Tom. Thank you for all of your suggestions. See my previous response to Paul—when I rendered through the AMD Radeon RX 570 card … problem solved.

I will look at all of your suggested settings to determine if these variables change the outcome in any way.

Thank you for digging in. Greatly appreciated.

Karl

Paul—Thank you for your response—and for clearly explaining the codec compression issues. Your description of the issues makes perfect sense because, yes, each video frame changes.

You provided me with several ‘ah-ha’ moments. The first of which was an assumption (bias) that the onboard Intel i9 would out-render the graphics card. My gra…

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After clearing this with COW’s managing editor, here are two links if anyone wants to dig in further:

1. Link to my ~ 42-second test video. The first scene plays normally on the LG TV. When it gets to the fast-forward segment, then it fails (per the above descriptions). (Download link expires in…

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Answers to questions & suggestions:

1. Do any videos play on the LG TV.

Yes. >MOST< of my 4K videos will play on the LG OLED-77C1AUB.AUS through an external SSD connected via USB. >ALL< of the fast-forward sequences fail at some point in the sequence. >SOME< of the normal-speed 4K video also fails during the normal course of playback (which, to…

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Jon: Thank you for your suggestion. I will test quality settings and report back.

Tom: Thank you for your suggestions. I will test these scenarios and report back.

I always come to The Cow for ultimate wisdom where other mortal forums fail. Here I am seeking truth for the following problem:

 

I have created a 4K video using DaVinci Resolve—in this case, the latest version (17.3 build 14). The particular video in question has several segments where clip speed has been accelerated to 800%, with various r… Read more