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Whisper Prompting

Keep prompts concise so Whisper spells names, brands, and jargon correctly.

Whisper prompting interface

A prompt is a short hint you set before recording. It helps Whisper spell uncommon words and handle jargon. Keep it short: Whisper reads only the last 224 tokens (≈ 900 characters); earlier text is ignored.

Why Use a Prompt

  • Corrects spelling of names, brands, and technical terms.
  • Improves accuracy for multilingual or specialized vocabulary.

Four Simple Rules

  1. Stay under 900 characters. Everything beyond that limit is ignored.
  2. List important names or terms first.
  3. Use exact spelling and capitalization you want in the transcript.
  4. Separate items with commas or periods. Short phrases work best.

Reusable Prompt Builder

Copy this, replace the examples, and keep it under the limit:


Names/Brands: …   Key terms: …

Ready‑to‑Copy Templates


1. Team meeting
   Names/Brands: Priya, Kenji, Omar, Jira, OKR. Key terms: sprint backlog, pull request, CI pipeline.

2. Customer‑support call
   Names/Brands: FiberPro router. Key terms: LED status, factory reset, order number.

3. Podcast interview
   Names/Brands: Dr. Sarah Moore. Key terms: neural networks, reinforcement learning.

4. Medical dictation
   Key terms: amoxicillin, hypertension, systolic, diastolic, BMI, lipid panel.

5. Legal deposition
   Key terms: sworn testimony, Exhibit A, non‑compete clause.

6. Academic lecture
   Key terms: photosynthesis, Calvin cycle, chlorophyll‑a.

7. Multilingual meeting
   Spanish words: Buenos días, proyecto, plazo, presupuesto.

8. Product review video
   Names/Brands: Galaxy S25 Ultra. Key terms: optical zoom, AMOLED, battery life.

9. Court hearing
   Key terms: arraignment, plea bargain, docket number.

10. Sales demo
    Names/Brands: CRM‑Plus. Key terms: pipeline dashboard, ROI calculator.

Edit the names and terms. Keep it under 900 characters; older text is clipped.

Troubleshooting

IssueQuick Fix
Rare word still misspelledMove it to the start; verify exact spelling.
Prompt text appears in transcriptRemove words you wouldn’t actually say aloud.

Key Takeaways

  • ≤ 900 characters (224 tokens) — older text is ignored.
  • Put important words first.
  • Use correct spelling & capitalization.
  • Update the prompt whenever speakers or topics change.

Copy a template, tweak the details, and get cleaner, more accurate transcripts.