Smart Turn

AI

audio turn detection model

SHOW HN2025

126points
28comments
#593of 3,837 in 2025
Top 16%of 2025 by points

How HN took it

LovedMost comments that take a side are positive

7 positive, 7 neutral or asking, 0 mixed, 1 critical, out of 15 comments about the project. Thread score +0.37.

Idea: 5 for, 0 againstDesign: 2 for, 1 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Model is well documented and the README is clear

    From 1 comment
    • I got most of my answers from the README. Well written. I read most of it. Can you share what kind of resources (and how much of them) were required to fine tune Wav2Vec2-BERT?
      foundzen on HN
  • Architecture matches existing turn-based models

    From 1 comment
    • Having reviewed a few turn based models your implementation is pretty inline with them. Excited to see how this matures!
      written-beyond on HN
  • Important problem for voice agents

    From 1 comment
    • I'm excited to see this particular technology developing more. From the absolute worst speech systems such as Siri, who will happily interrupt to respond with nonsense at the…
      xp84 on HN

Objections

  • Turn detection may not be solvable without push-to-talk

    From 1 comment
    • I will have a look at this. Played with pipecat before and it's great, switched to sherpa-onnx though since I need something that compile to native and can run on edge devices.…
      pzo on HN
  • Model could interrupt users inappropriately

    From 1 comment
    • ... but will the model learn when to interrupt you out of frustration with your ongoing statements, and start shouting? it seems like for the obvious use-cases there might need…
      meltyness on HN

Requests

  • Support for multiple speakers

    From 1 comment
  • Better SEO and explanation of the term turn detection

    From 1 comment
    • Re SEO, I note "utterance" only occurs once, in a perhaps-ephemeral "Things to do" description. To help with "what is?" and SEO, perhaps something like "Turn detection (aka…
      mncharity on HN

Questions

  • What is turn detection?

    From 1 comment
  • How many parameters does the model have?

    From 1 comment
    • As an [diagnosed] HF autistic person, this is unironically something I would go for in an earpiece. How many parameters is the model?
      zamalek on HN
  • What resources were needed to fine tune the model?

    From 1 comment
    • I got most of my answers from the README. Well written. I read most of it. Can you share what kind of resources (and how much of them) were required to fine tune Wav2Vec2-BERT?
      foundzen on HN

Alternatives named

  • sherpa-onnx

    From 1 comment
    • I will have a look at this. Played with pipecat before and it's great, switched to sherpa-onnx though since I need something that compile to native and can run on edge devices.…
      pzo on HN
  • LiveKit text-based turn detection model

    From 1 comment

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

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