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felixzeller

HN member
Joined
Tue, Apr 21, 2026, 6:07 PM UTC
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Public activity
21 items

About felixzeller

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Recent public activity

  1. comment
    Comment #48458897

    I built ΦASIS and ATMOS as interface layers underneath shiihaa, a breathwork app. ΦASIS is the zero layer. ATMOS is the BIOS layer. shiihaa is the breath layer. The linked page con…

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  3. comment
    Comment #48412865

    An update after the feedback here: I added ATMOS, a BIOS-style command layer for the browser version of shii•haa: https://shiihaa.app/atmos/ It explains how to open the interface: …

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    Comment #48403566

    Great feedback, thank you. The browser version still depends on the device/browser mic chain and it looks like the threshold is too strict on some iPhone/Safari setups. I`ll look i…

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    Comment #48395782

    Lungy looks really nice. With shiihaa I am exploring a different direction: silent biofeedback. microphone-based breathing feedback that tries not to become the object of attention…

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    Comment #48382203

    Thanks for catching this. The iOS app is currently blocked in Germany (and some other EU countries) because DSA information is still pending. Hopefully soon. Android is available t…

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    Comment #48381996

    That`s very cool. I chose the phone mic, because everybody already has one, no extra device needed. The downside is normalization: from room noise to breathing style. I do use an M…

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    Comment #48381939

    Exactly the kind of use I don`t want to support. I do not upload raw audio or speech and I don`t try to identify individuals from the signal. The app was built for voluntary feedba…

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    Comment #48381276

    Thank you so much for your kind words. The microphone is the hard part, so I am trying to learn where the limits are instead of just pretending they do not exist... What happened t…

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    Comment #48380693

    there is a no-account path for the browser version of the biofeedback feature now.

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    Comment #48380656

    The Android app is now available in all Play Store countries except mainland China

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    Comment #48380614

    Fair question. I do use tools sometimes to correct long reads, but the content (and thus the mistake here) is mine. I should have checked the README against the released app before…

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    Comment #48377030

    Thanks, that is actually really useful. I chose the account system because I had it from the web side, but I see your point. Will think it through properly.

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    Comment #48376965

    [flagged]

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    Comment #48376742

    [flagged]

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    Comment #48376692

    [flagged]

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  18. story
    Show HN: Live breath detection and biofeedback from a phone microphone

    Hi everyone, I am Felix, a famliy doctor from ZH, Switzerland. A couple of month ago I started this little project called shii • haa, a breathing app that uses the phone`s micropho…

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    Comment #48212879

    [flagged]

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