How to Edit 4K Video on Slow Computer | VideoProc
As the dominance of 4K resolution becomes more and more certain, it is no longer a question of what it is but how to edit 4K. PC often lags badly when 4K processing starts. True, 4K video editing is quite taxing on any devices, especially the low-spec ones. But there are ways to alleviate the pain. Use a video editor that allows GPU accelerated 4K video editing.
Here VideoProc is the chosen one, for its unique level-3 hardware acceleration technology. That could revive your old computer. Let's see how to edit a 4K video on slow computer with VideoProc.
Where to free download VideoProc 4K editor?
To free get a trial copy of VideoProc, click the following download links for different platforms.
How to Edit a 4K Video in VideoProc
After downloading VideoProc, get it installed on your PC or Mac. Note that VideoProc is 4K editor software compatible only with desktop computer. Next we will show you the full steps of how to edit a 4K video without lag.
Start with - Import 4K clips
Open VideoProc > click "Video" to get into video processing center > + Video > select 4K files > Open. Intead of importing by "+ Video", you can simply drag and drop 4K files.
All 4K files loading will be finished in a flash. Despite the fact that UHD resolution leads to huge file size, causing 4K loading error in some programs, there is no 4K decoding issues in VideoProc at all. Check input 4K formats supported by VideoProc
Step 1: Crop 4K video
Video cropping is needed when your shooting mode does not match the display screen or uploading requirements. Cropping 4K video can be done in nearly all 4K video editing software. VideoProc provides you with several 4K cropping options.
Which mode should you choose? 4:3 or 1:1 is for sharing on social sites like Instagram. 16:9 is for playback on widescreen TV or uploading to YouTube. Crop letterbox is to remove black borders. Read more: Detailed steps to crop video to 1:1 for social media.
How to crop 4K video in VideoProc
• Option > Edit Video > Enable Crop.
• Choose 16:9, 4:3, 1:1, etc in Preset, or freely adjust position values of left, right, top and bottom.
Step 2: Cut 4K video
Part of the social media sites have a video length limitation. For example, Instagram only accepts a video shorter than 60 seconds. The maximum time length in Facebook is 45 minutes. You inserted a 128GB SD card and maybe made a continuous 4K shooting of 1 hour. But to share it online, cutting or splitting your 4K footages is needed.
How to cut 4K video in VideoProc
• Option > Edit Video > Crop.
• Slide the handle in the timeline to set a time range you want to cut > click "Cut" button.
• Reset a time range to cut again > Done.
For more details, watch the following video tutorial
Step 3: Rotate or flip 4K video
Say you have two 4K videos to merge together. One is verticle from iPhone while another is landscape shot by GoPro. To combine the two 4K files, better rotate one of them.
How to rotate 4K video in VideoProc
• Option > Edit Video > Audio & Video > Video Rotate.
• Click "Rotate Left" or "Rotate Right" to change video orientation clockwise or anticlockwise.
• Choose "Vertical Flip" or "Horizontal Flip" to make mirror effect.
Under the same tab, you could see a "Playback Speed" option. Change video speed from 0.1x to 16x to apply slow-motion or time-lapse effect.
Step 4: Stabilize 4K video
Both GoPro Hero7 and DJI cameras allows you to shoot 4K with EIS turned on in daylight. But when it comes to 4K HDR, 4K 120fps and 4K in low light, HyperSmooth and Rocksteady stabilization are not accessible in your camera. You might need to deshake your 4K footage in post production, by using a video stabilizer software.
How to stabilize 4K video in VideoProc
• Move down to the bottom area of VideoProc and switch to "Toolbox".
• Click "Deshake" and then "Option".
• Ajust the deshaking factors like Shakiness, Accuracy, Step size and Minimum contrast.
• Set a duration that needs to be stabilized and then "Done".
The four deshaking factors decide your final output quality. But what is the best setting? Which value should you actually use? All has been explained at length in this GoPro 4K video stabilization tutorial
Step 5: Resize 4K video
As we've said before, online video sharing sites and social media sites have uploading limitations. Some set limit at video length, while some others at file size. 4K is known for ultra high quality, which also means large file size. So to upload 4K videos online, resizing or compressing 4K is a good way to go.
Resizing 4K video can be realized by multiple ways, like cutting off unwanted area or durations, re-enconding video in codec with higher compression ratio, etc. Just be careful that some will lead to quality loss. To maximally keep original UHD quality, check our Six methods to resize video
Step 6: Enable GPU acceleration for 4K editing
If you have ever run a 4K video editing on an old computer, you should know how sluggish it could be. 4K video editing, rendering and transcoding are computing-intensive tasks. If there is only CPU to execute, no doubt your computer is slowed down. That might be the reason that hardware acceleration technology is invented.
How to enable GPU acceleration in VideoProc
• Find "Hardware Accelerator Engine" under the preview window.
• Check the box "Nvidia / Intel / AMD".
• Not sure whether your computer supports hardware acceleration or not? Click "Option" to see your hardware info. Click "Recheck" and you will get a table full of graphics and GPU encoding things.
Final - Export 4K videos
- Choose an output file format. MP4 H.264 is recommended if you don't know which one to choose. Check All output formats you can use
- Set the output folder and press RUN.
Free Download VideoProc to Edit Your 4K Video
What we list above is not all that VideoProc can do for you. There is also a background noise remover. Classic filters are available, along with color correction settings. Feel free to add text, subtitles or watermark. And most surprisingly, VideoProc is also a screen/webcam recorder and 4K video downloader. Download VideoProc now to have a try.