# QC Timeline

QC Timeline V2 (available since 1.11.25) replaces the earlier timeline with improved rendering and clarity. V2 keeps the same track-based workflow but is faster to render and clearer at high density.

OmniScope features a very useful QC tool called QC Timeline. It can be toggled in the QC top menu and allows you to see all the QC events as well as audio waveform, HDR stats, thumbnails and many more.

<figure><img src="/files/D3wFb00YVzKqhfFUx4Ql" alt=""><figcaption><p>QC Timeline with multiple tracks</p></figcaption></figure>

The timeline is built in realtime based on incoming frames and uses timecode to reference events. This means you can monitor your SDI signal as it comes in and will follow your playhead in real-time while you move around your timeline.

Timeline can be configured to display up to 8 tracks:

1. Timecode,
2. HDR Stats,
3. Blanking,
4. HDR Gamut,
5. Audio Silence,
6. Audio Waveform,
7. Audio Loudness,
8. Thumbnails.

Each track can be toggled on and off in the right click context menu:

<figure><img src="/files/j1DYzzPGM3xrrZHKHFPz" alt=""><figcaption><p>QC Timeline context menu with track toggles</p></figcaption></figure>

You can also change the size of each track by dragging & dropping the top/bottom edges of the tracks. You can also re-arrange the tracks by dragging & dropping the track headers on the left side.

## Using Free Run for Quick QC Scans

When working with video files, enable **Free run** mode in the source's **Settings** tab to process frames as fast as possible — without waiting for real-time playback. The QC Timeline will be built at accelerated speed, allowing you to scan an entire file in a fraction of the normal playback time. See [Video File — Free Run Mode](/nobe-omniscope/sources/video-file.md#free-run-mode) for setup details.

The context menu allows you to reset the timeline (start building it from scratch), clear the bookmarks (you can add them through streamdeck action or cmd/ctr+B key shortcut), import and export the timeline to file (for further quick access) as well as [exporting the QC events as markers via EDL](/nobe-omniscope/qc/qc-edl-export.md).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.timeinpixels.com/nobe-omniscope/qc/qc-timeline.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.