Listen, Speak, and Think Simultaneously: Strict Full-Duplex Implementation, Streaming Approximations, and the Engineering Gap

The article gives a strict definition of "full-duplex": continuously receiving and understanding the user's audio stream while generating. Approaches that do not meet this condition are explicitly labeled "streaming half-duplex" or "turn-based." Centered on this criterion, the content distinguishes between strict full-duplex implementation, streaming approximations, and the gap to engineering deployment.