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Updated: 50 min 26 sec ago

The Certainty Trap

Fri, 07/10/2026 - 12:04pm
Categories: Hacker News

Show HN: SpeechCompass – speaker direction for captioning group conversations

Fri, 07/10/2026 - 12:01pm

Hi HN! We are excited to finally open-source SpeechCompass (from my time at Google, released with google-deepmind). If you've used live captions in group conversations, you've seen how different voices get mixed up into one wall of text. In our survey of 263 captioning power users, the merging of speakers was a top issue (46%).

SpeechCompass (Best Paper Award @ ACM CHI 2025, paper + video in repo) addresses this by showing the direction of each speaker. Captions are color-coded with an arrow pointing toward where the speech is coming from. We show it on phones with 2+ mics (180°), and release the firmware and hardware for a 4-mic phone case for full 360°.

It uses fast time-difference-of-arrival algorithms that can run on small, low-power microcontrollers. It is private by design and runs fully on-device: it uses spatial direction, not voiceprints, and no audio leaves the phone (for direction). The repo has the Android app (prebuilt APK in Releases), the portable C11 DSP library, firmware, and PCB designs, all Apache 2.0. Happy to answer questions and interested in feedback, especially from folks who use captioning daily.

Comments URL: https://news.ycombinator.com/item?id=48861746

Points: 2

# Comments: 0

Categories: Hacker News

Ask HN: PIIA Carve Outs

Fri, 07/10/2026 - 11:57am

While I am explicitly avoiding the how, have any of you successfully been accepted to a batch while taking a job with industry overlap, but not application overlap by using pre-hire explicit PII agreements?

Or does it pose too many issues?

Comments URL: https://news.ycombinator.com/item?id=48861692

Points: 1

# Comments: 0

Categories: Hacker News

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