Text to Speech · Pronunciation Control

Every word pronounced exactly right.

Resemble AI generates multiple pronunciation variants and lets you build a custom vocabulary — so your TTS never mispronounces a word again.

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Available forChatterboxChatterbox Turbo

Three steps to perfect pronunciation

1

Multiple variants generated

Our engine automatically produces several pronunciation candidates for every word — especially tricky brand names, drug names, and domain-specific terms.

2

Pick the correct one

Listen to each variant and select the pronunciation that matches your standard. One click to lock it in — no phonetic transcription required.

3

Build your vocabulary

Approved pronunciations are saved to a reusable vocabulary that applies across all future synthesis. Every voice, every request — consistently correct.

custom_vocabulary.json
WordSelected variantStatus
Calquencevariant-03✓ Locked
Mounjarovariant-01✓ Locked
durvalumabvariant-02✓ Locked
empagliflozinvariant-05✓ Locked
100%

Pronunciation accuracy

Once a vocabulary is built, every word is pronounced the same way every single time — across voices, sessions, and API calls. No regression, no surprises.

Built for industries where words matter

Pharmaceutical & life sciences

Drug names, compound identifiers, and clinical terminology must be pronounced with precision. A mispronounced drug name in a patient-facing application can damage trust — or worse.

drug monographspatient medication guidesclinical trial briefingsIVR pharmacy systems

AI health agents

Agentic AI platforms running thousands of real-time patient conversations — medication reminders, post-discharge follow-ups, care coordination — cannot afford to mispronounce a single drug or treatment name.

AI care coordinatorsmedication adherence botspost-discharge follow-uppatient triage agents

Medical education & training

E-learning platforms, anatomy courses, and procedure walkthroughs rely on TTS to narrate complex medical vocabulary. Students need correct pronunciations, not phonetic guesses.

CME e-learninganatomy narrationsurgical training videosnursing certification prep

Financial services

Fund names, ticker symbols, economic indicators, and executive names appear in every earnings summary and market briefing. Consistent pronunciation signals professionalism and builds listener trust.

earnings call summariesmarket briefingsfund prospectusesinvestor updates

Broadcasting & media production

News outlets, podcasters, and video platforms auto-generating narration face a constant stream of brand names, foreign place names, and public figures that generic TTS engines consistently mispronounce.

news briefing narrationpodcast summariesvideo voiceoversports commentary

Legal & compliance

Legal documents, regulatory filings, and compliance training are dense with Latin phrases, case citations, and jurisdiction-specific terminology that generic TTS engines consistently get wrong.

contract narrationcompliance trainingregulatory filingsdeposition summaries