How a real-time AI voice translator works

A real-time voice translator can feel like magic: you speak in your language and, seconds later, the other person hears it in English — and vice versa. But the process is easy to grasp once you break it down. Here’s how artificial intelligence does it live, with no human interpreter.

What a real-time voice translator is

It’s a system that hears speech in one language and gives back the same message spoken in another language, in seconds, while the conversation is happening. Unlike a text translator, it handles voice on the way in and on the way out — and it works in both directions at the same time.

👉 Try Langless now — get started free

The flow: from speech to translated voice

Under the hood, the AI voice translator does three things, very fast and in sequence:

1. Hear and understand the speech. The AI captures the audio and recognizes the words spoken (speech recognition).
2. Translate. The recognized text is translated into the target language, taking the sentence’s context into account.
3. Speak it back. The translation becomes a voice in the other language (speech synthesis) and reaches the listener.

All of this takes just a few seconds, which is why it feels simultaneous. Because the cycle runs in both directions, each person speaks their own language and hears the other’s.

How Langless puts this to work

Langless is that AI voice translator, with three ways to use it:

• Meeting: your voice goes into Zoom, Teams or Meet translated and what the others say comes back in your language. See how to translate a meeting in real time.
• Chat room: a multilingual space where each person speaks their own language.
• Listen: for anyone who just wants to understand a speech translated live.

You choose your language and the other person’s from dozens of options. See which languages you can translate.

How much it costs

The subscription starts at US$ 25/month and the translation runs on your own AI key (BYOK): you pay for the minutes directly to the provider, from ~US$ 0.03/min, with no markup from us. Check the plans.