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How voice learning works

How Sparky learns your tone, merges transcripts, and calculates Voice Confidence.

Sparky builds a structured voice profile from your transcripts: tone, sentence style, vocabulary, hooks, banned words, and how you open posts. Onboarding role and goals still shape the angle of each post.

When your profile updates

  • After every project transcript is stored (including transcript file uploads).
  • For thought leader and expert guest projects, only your selected speaker lines are analyzed.
  • When you approve a project post you edited - Sparky may add style correction rules from the diff.

Voice Confidence score

The top bar show Voice Confidence as a percentage. It answers one question: how much transcript material has Sparky already used to learn how you write and speak?

The score is not a grade on post quality. It is a depth meter. More processed transcripts mean a richer profile and a higher number, up to a built-in cap of 95%.

How the score is calculated (C(n))

Behind the scenes SparkVox uses a simple curve called C(n). The n is how many project transcripts have been counted toward your voice profile (each new project transcript counts once; re-processing the same project does not).

Think of it like filling a glass: the first transcript moves the score a lot. The second moves it again, but a bit less. By the time you have several episodes in the system, each new one still helps, but the number inches forward more slowly. That is intentional - early projects teach Sparky the basics fast; later ones refine what is already there.

The curve never quite reaches 100%. It levels off near 95% so the score always leaves room for more learning as you keep publishing. Deleting a project does not lower the score; transcript counts only go up.

Transcripts counted (n)Typical Voice Confidence
00%
1~39%
2~61%
3~75%
5~88%
10 or more~95% (cap)

How profiles merge

Each new transcript strengthens patterns Sparky already knows, adds new ones, and drops anything clearly contradicted. Your profile is never replaced unless you fire Sparky.