> ## Documentation Index
> Fetch the complete documentation index at: https://docs.osvi.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Voices

> Choose how your agents sound and control pronunciation

The **Voices** page is the catalogue of every text-to-speech voice available to your agents, across all supported providers. The voice you pick shapes how callers perceive the agent more than almost anything except the prompt.

## Browsing the catalogue

Filter the catalogue by:

* **Provider** — each TTS provider offers different voices, languages, and latency characteristics.
* **Language** — match the language your agent speaks. Voices are available for English and major Indian languages (Hindi, Tamil, Telugu, Kannada, Malayalam, Bengali, Gujarati, Marathi, Punjabi, and more).
* **Gender** and **accent**.
* **Tags** — descriptive qualities like warm, energetic, or professional.

Every voice has a **preview** button — always listen before assigning. A **recommended** strip at the top surfaces voices that work well for phone audio.

Mark voices as **favourites** (the star) to build a shortlist; a *favourites only* toggle filters the catalogue down to them.

## Assigning a voice to an agent

Select a voice from the catalogue, or pick it directly on the agent's **Advanced → Text-to-Speech** section. Voice and speech-recognition language are set independently — make sure both match the language your callers actually use.

## Pronunciation rules

Under **Voices → Pronunciation**, you can define account-wide pronunciation overrides — a word and how it should be spoken:

| Word   | Spoken as   |
| ------ | ----------- |
| `OSVI` | "oss-vee"   |
| `EMI`  | "ee-em-eye" |

Rules apply to every agent in your account, which keeps brand names, product names, and abbreviations consistent across all voices. Add a rule whenever you hear an agent mangle a name in a recording.

<Tip>
  Test your chosen voice with your actual prompt in the web-call playground, not just the preview clip — some voices that sound great reading a sample sentence stumble on numbers, amounts, or code-mixed Hindi-English.
</Tip>