Show HN: I built a sub-500ms latency voice agent from scratch

Re:Show HN: I built a sub-500ms latency voice agent from scr... by jedberg on Monday March 02, 2026 @11:10PM (#47227917)

To be clear, it wasn't my research, I got it from studying some linguistics papers. But it was pretty straightforward. If I am talking, and then you interrupt, and 300ms later I stop talking, then the delay is -300ms.

Same the other way. If I stop taking and then 300ms later you start talking, then the delay is 300ms.

And if you start talking right when I stop, the delay is 0ms.

You can get the info by just listening to recorded conversations of two people and tagging them.

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Re:Show HN: I built a sub-500ms latency voice agent from scr... by esperent on Tuesday March 03, 2026 @12:17AM (#47228387)

I assume there was a lot of variance? As in, some people interrupt others constantly and some do it rarely. Also probably a lot of adjustment depending on the situation, like depending on the relative status of the people, or when people are talking to a young child or non-native speaker.

All that to say, I'd imagine people are adaptable enough to easily handle 100ms+ delay when they know they're talking to an AI.

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