What is a proxy used for in video editing?

In video editing, a proxy is utilized primarily for working with high-quality files in a lower quality format. This process allows editors to create smaller, more manageable files that are easier to work with, particularly when the original footage is of very high resolution. Using proxies enables smooth playback and quicker editing, especially on systems that may not have the capability to handle large file sizes efficiently.

This approach is particularly beneficial in complex projects. For example, when handling 4K or higher resolution footage, proxies reduce the amount of data that needs to be processed during the editing phase, which can significantly streamline workflow. Once editing is completed, the final output can be linked back to the high-quality files for rendering or export, ensuring that the final product maintains the intended quality.

The other options either refer to processes that do not directly relate to the function of proxies, such as editing high-quality files directly, which can be cumbersome without proxies, or results that may occur as a byproduct of using proxies, such as potentially faster exports or aiding in color grading. However, the core purpose of a proxy is centered on facilitating the editing experience through lower-quality versions of footage.