SME Validation
When SME mode is enabled, Scene Cut adds four specific validation rules that complement the standard checks (reading speed, duration, gap, scene cuts).
SME rules
| Rule | Level | Trigger condition |
|---|---|---|
| Missing speaker | Info | Dialogue entry with no speaker assigned |
| Untyped sound effect | Info | Text in brackets [...] but type set to dialogue |
| Missing music marker | Info | Music-type entry without ♪ or 🎵 in the text |
| Insufficient contrast | Warning | Contrast ratio between text color and background below 4.5:1 (WCAG AA) |
SME validation indicators are displayed the same way as standard errors — yellow for warnings, blue for information — and are navigable with Opt + Shift + Right.
WCAG AA Contrast
The contrast check ensures that speaker colors remain readable against the subtitle background. Scene Cut calculates the relative luminance of each color and verifies that the ratio reaches at least 4.5:1, in accordance with WCAG AA accessibility criteria.
In practice, white, yellow, and cyan pass easily on a dark background. Red and green may cause issues depending on the background color chosen in appearance preferences.
SME Metrics in the QC Report
When SME mode is active, the QC report includes an Accessibility (SME) section with the following metrics:
| Metric | Description |
|---|---|
| Unique speakers | Number of distinct speakers in the project |
| Entries with speaker | Number of dialogue entries with a speaker assigned |
| Entries without speaker | Number of dialogue entries without a speaker |
| Entries with color | Number of entries with a custom color |
| Speaker list | Names of all speakers in the project |
| Type breakdown | Number of entries per type (dialogue, sound effect, music, narrator) |