What does the term "time code" refer to in digital video?

The term "time code" specifically refers to a digitally encoded signal used to identify each individual frame within a video. This encoding helps in synchronizing video and audio components and allows for precise editing, making it easier for editors to locate specific frames during the post-production process. Each time code consists of hours, minutes, seconds, and frames, which makes it a crucial tool for organization in video editing workflows.

In contrast, other options do not relate to the definition of time code. A visual representation of sound pertains to audio waveform displays rather than video timing. A method for transferring video files is about data transfer protocols and not about frame identification. Finally, a type of editing software does not encapsulate the concept of time code, as time code is a technical specification rather than a software application. Thus, the correct answer highlights the fundamental role of time code in managing and editing video content efficiently.