TAGGEDVOICE 6 POSTS

Posts about VOICE.

2026.07.07 VOICE BUILD NOTE

Turn-based voice RAG: the whole loop on one stack.

A mic button on a grounded-answer dialog: Whisper for transcription, the unchanged retrieval path, per-sentence TTS for playback. What broke, what it costs, and why the label says turn-based instead of realtime.

6 min →

2026.06.29 VOICE

Voice agent evals: scoring a conversation, not a transcript.

A voice agent can pass every transcript-level metric — low word error, correct answers — and still be unbearable to talk to. The caller experiences timing, turn-taking, and recovery, none of which a transcript records. How to score the conversation.

10 min →

2026.05.15 VOICE

Cascaded or end-to-end: a 2026 voice-architecture trade study.

A 2026 voice agent forks at the first design decision — STT→LLM→TTS cascade, or a single speech-to-speech model. End-to-end wins on latency and naturalness; the cascade wins on everything you debug, audit, and control. Here is the trade study.

12 min →

2026.05.02 VOICE

Graceful failure for voice agents.

A voice call is real-time and unforgiving — there is no spinner to show, and dead air reads as a broken product. When STT, the LLM, or TTS fails mid-call, the system has to degrade, not drop.

11 min →

2026.04.07 VOICE

Turn-taking is the hard part of voice agents.

Transcription is largely solved. Knowing when the caller has finished, when to stop for an interruption, and when an 'mm-hm' is not a turn — that is not. Endpointing, barge-in, and backchannels, measured.

10 min →

2026.02.15 VOICE

A 280ms latency budget, broken down millisecond by millisecond.

Sub-300ms voice agents are a specific engineering problem. Here is every millisecond a packet spends between the user's mouth and the agent's reply — and where you actually claw the time back.

13 min →