A voice assistant chains STT, an LLM, and TTS under a brutal latency budget where every stage adds delay. The signal is streaming and pipelining the stages plus turn-taking, not three blocking calls. Here is the design.
Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.
A voice assistant chains STT, an LLM, and TTS under a brutal latency budget where every stage adds delay. The signal is streaming and pipelining the stages plus turn-taking, not three blocking calls. Here is the design.
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