How Modern Voice-to-Voice AI Models Work
Speech Goes In, Speech Comes Out
You say into your phone: "Explain quantum entanglement in one minute." A beat later, a voice answers — not the robot from your GPS, but almost a real conversation partner: it pauses, it has intonation, it even drops a little "hm" before the tricky part. This is voice-to-voice (V2V), also called speech-to-speech (S2S): a system that takes audio in and answers with audio. In this article we'll take the trick apart, from the wave hitting your microphone to the sound coming out of your speaker.
I spent a while at Newo.ai, deploying voice agents into real projects on the European market. In production, the marketing line "talks almost like a human" decomposes quickly into measurable problems: latency, false endpoints, mangled names, and a tone of voice that's wrong for the moment.
That's where I first collided with voice-to-voicesystems for real — the ones...
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