Upscaled_(9)_hq.mp4

The video has likely been enlarged from a lower resolution (like 480p or 720p) to 4K or 8K using software like Topaz Video AI.

The "HQ" tag suggests that noise reduction, sharpening, and frame interpolation were applied to make the footage look modern. upscaled_(9)_HQ.mp4

A YouTuber or editor may have upscaled b-roll footage to match the quality of a 4K project. The video has likely been enlarged from a