# Voice & Audio

> Text-to-speech, transcription, speaker diarization, voice cloning and voiceprints — every vendor Divinci can run them on.

## Text-to-speech

<ToolCatalogTable type="Audio/TextToSpeech" />

`cloudflare-aura-2` is the default. `browser-local` uses the listener's own
device — no synthesis bill and no audio leaving the browser, at the cost of
whatever voices that device happens to have.

<Aside type="caution" title="`@cf/deepgram/aura-2-en` is a Cloudflare call, not a Deepgram one">
The default voice is Deepgram's *model* hosted on Cloudflare Workers AI. It
consumes **no Deepgram credits** and needs no Deepgram key, despite the
`deepgram` in the model string. `deepgram-tts` is the separate tool that really
does call `api.deepgram.com`. Switching the default to it changes whose bill the
audio lands on and nothing a listener can hear.
</Aside>

## Transcription

<ToolCatalogTable type="Audio/Transcription" />

Whisper on Workers AI is the default; Deepgram Nova 3 and OpenAI's hosted
Whisper are BYOK alternatives. Speech-to-text has a fallback router, so a
provider failing mid-job falls through rather than losing the job.

## Speaker diarization

<ToolCatalogTable type="Audio/SpeakerDiarization" />

Diarization answers *who spoke when*, and runs alongside transcription rather
than instead of it. Pyannote is available both on Divinci's infrastructure and
on your own key.

## Voice cloning & voiceprints

<ToolCatalogTable type="Audio/VoiceClone" />
<ToolCatalogTable type="Audio/Voiceprint" />

A **voice clone** synthesises new speech in a given voice. A **voiceprint**
identifies a speaker across recordings. They are different capabilities with
very different consent implications.

<Aside type="danger" title="Both need the speaker's permission, not just their audio">
Cloning a voice from a recording you have is technically easy and, in a growing
number of jurisdictions, unlawful without explicit consent. Voiceprints are
biometric identifiers and attract biometric-privacy law on their own terms.
Neither is a place to move fast.
</Aside>

## See also

- [Voice, Phone & SMS](/guides/voice-phone/)
- [Recall.ai connector](/cli/connectors/recall-ai/) — meeting capture with transcripts.