Voice Drift Detection

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Voice Drift is a Quill AI feature that acts as a subtle assistant for your characters’ voices. It analyzes your screenplay’s dialogue in the background and flags lines that might sound out of character, inconsistent, or too similar to another character.

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How Voice Drift Works

Every writer knows how easy it is for dialogue to start sounding homogenized, or for two distinct characters to blend into a single voice. Voice Drift runs a background check on your dialogue to catch this. For characters with enough lines (typically 10 or more), Voice Drift:

1. Establishes a baseline: Analyzes the character’s vocabulary, sentence length, rhythm, and semantic “vibe.”
2. Analyzes surrounding context: Compares each line of dialogue against the character’s historical baseline and the immediate conversational context.
3. Flags deviations: Highlights lines that stand out as unusual or inconsistent.

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Reading Voice Drift Flags

When Voice Drift detects a possible inconsistency, it adds a subtle underline to the dialogue line in the editor. Hover your cursor over the flagged line to view the suggestion details. The popover displays:

• Severity: Subtle, moderate, or strong signal.
• Character & Scene: The speaking character and scene number.
• The specific drift detected:
  • Rhythm/register differs from this character’s baseline (stylistic drift).
  • Tone/vibe differs from this character’s baseline (semantic drift).
  • Rhythm breaks from the immediate surrounding lines (conversational rhythm change).
  • Tone breaks from the immediate surrounding lines (conversational tone change).
• Speaker similarity: If a line sounds like another character, the tooltip will suggest: "Sounds more like [CHARACTER NAME]."

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Manage Voice Drift Hints

Voice Drift is enabled by default to help you catch inconsistencies as you write. However, if you find the hints distracting during a rough draft, you can toggle them off.

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Toggle Voice Drift Hints

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Ignore Specific Lines

If a flagged line of dialogue is intentional (for example, a character is lying, mimicking someone else, or acting out of character on purpose), you can dismiss the hint:

1. Hover over the flagged line to reveal the tooltip.
2. Click Ignore this line in the popover.
3. The underline is removed, and Inkwell will remember to ignore this line in future background passes.

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Best Practices for Screenwriters

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Establish Baselines First

Voice Drift requires a minimum amount of dialogue to understand a character’s voice. If a character only has a few lines in your script, Voice Drift won’t have enough data to compute a baseline. Focus on writing the script first, and review the hints once your characters have established their voices.

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Intentional Inconsistency

Characters don’t always speak consistently. A character who is stressed, drunk, lying, or talking to authority figures will naturally change their rhythm and tone. Treat Voice Drift flags as invitations to review the line, not errors that must be fixed.

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Reviewing “Sounds Like” Flags

If a line is flagged with "Sounds more like [OTHER CHARACTER]," check if the speaker is starting to borrow vocabulary or speech patterns from another character in the scene. This can be a great way to catch exposition dumps or ensure your ensemble cast remains distinct.

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Privacy & Performance

• Local Processing & Privacy: Dialogue analysis and matching are done locally using secure embeddings. Your raw text remains confidential.
• Performance: Voice Drift calculations run asynchronously in the background. It won’t interrupt your typing flow or cause lag, even on large scripts.

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Next Steps