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

# Language Support

> All languages supported by Voxmind's voice biometrics engine.

Voxmind's phoneme extraction model (XLSR-300M) was trained across 128 languages, making the core voice biometrics engine genuinely language-agnostic. This means a user can enroll in one language and authenticate in another — the voiceprint captures anatomical constants that don't change with language.

The `language` parameter on enrollment and verification calls helps the phoneme segmentation model apply the correct acoustic boundaries for the submitted audio. It's optional (defaulting to `en-UK`) but specifying the correct language improves accuracy, particularly for languages with phoneme inventories that differ significantly from English.

## Supported language codes

The `language` field uses `[ISO 639-1]-[ISO 3166-1 alpha-2]` format.

| Language                 | Code    |
| ------------------------ | ------- |
| English (UK)             | `en-UK` |
| English (US)             | `en-US` |
| French                   | `fr-FR` |
| German                   | `de-DE` |
| Spanish (Spain)          | `es-ES` |
| Spanish (Latin America)  | `es-MX` |
| Italian                  | `it-IT` |
| Portuguese (Brazil)      | `pt-BR` |
| Portuguese (Portugal)    | `pt-PT` |
| Dutch                    | `nl-NL` |
| Polish                   | `pl-PL` |
| Russian                  | `ru-RU` |
| Arabic (Modern Standard) | `ar-SA` |
| Hindi                    | `hi-IN` |
| Mandarin Chinese         | `zh-CN` |
| Japanese                 | `ja-JP` |
| Korean                   | `ko-KR` |

<Note>
  Additional language support is being expanded continuously. If your use case requires a language not listed, contact [support@voxmind.ai](mailto:support@voxmind.ai) — we can often add support for specific languages on request.
</Note>