Quality Control (QC)

he systematic technical review of finished deliverables against specification requirements before final distribution. QC checks verify compliance with broadcast standards (legal signal levels, safe action/title areas), codec and container specifications, audio levels and channel mapping, closed captioning, metadata accuracy, and visual artifacts (dropped frames, encoding errors, black flashes, audio sync drift). QC can be performed manually by a trained operator reviewing the file in real-time, or automatically using software tools like Baton, Cerify, or Vidchecker that flag violations against a predefined spec template. A QC rejection report details every failure with timecode references, and the post team must fix and re-deliver. Many broadcasters and streaming platforms require third-party QC certification before accepting a deliverable. In archival and historical projects, this also extends to rigorous factual and contextual verification, ensuring that footage, audio, and on-screen text are accurate to the events being depicted. Beyond final delivery checks, QC also encompasses the active process of salvaging poorly shot footage during the edit itself, using tools like secondary color correction to fix issues that would otherwise render a shot unusable. This extends to the choice of editing software itself; selecting a stable NLE that crashes infrequently is a foundational QC step to prevent data loss and project corruption. In documentary filmmaking, this can also extend beyond technical specifications to include rigorous historical and factual verification, often involving a subject matter expert embedded in the post-production process.