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Experimentation with Voxtral-Mini-4B-Realtime-2602 and DeepL API for live translation

9 starsAstro

Live Translation with Voxtral Mini Realtime and DeepL

by lnalx·Feb 16, 2026·2 points·0 comments

AI Analysis

●●SolidShip ItNiche Gem
The Take

Microphone audio is captured in the browser as PCM and streamed over WebSockets to a Node server that pipes live segments into Mistral's Voxtral realtime API, then immediately hits DeepL for translation — a straightforward, usable demo of live STT->MT. It isn't reinventing the wheel, but the repo bundles the full flow (browser keys, Docker, server.mjs, and UI) so you can spin up an end-to-end test quickly; main downside is it's an integration demo that depends on external API keys and limits for real-world scale.

Category
Target Audience

Developers and hobbyists who want a runnable demo of real-time speech-to-text + translation or a base to build translation features

Post Description

This experimental project transcribes and translates speech in real time using Mistral's new Voxtral realtime API and DeepL (https://huggingface.co/mistralai/Voxtral-Mini-4B-Realtime-26...)

It currently supports 11 languages: French, English, Chinese, Spanish, Portuguese, Russian, German, Japanese, Korean, Italian, and Dutch.

You can test on https://live-translation.alexandrelion.com/ by bringing your own API keys (Mistral + DeepL free tier)

GitHub: https://github.com/alxlion/voxtral-live-translation

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