felixzeller
Re:Show HN: ΦASIS and Atmos, zero and BIOS layers beneath a breathwork...
on Tuesday June 09, 2026 @05:51AM (#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 contains the BIOS-style manifest, the access path and the commands to enter the layers.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Friday June 05, 2026 @10:15AM (#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: no login requirements, no availability issues.
Thanks again to everyone. It helped shape the interface.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Thursday June 04, 2026 @03:34PM (#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 into this case. It should not get stuck at signal too weak if the room is silent and breathing clearly audible.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Thursday June 04, 2026 @04:25AM (#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 but instead supports self-awarness and introspection.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Wednesday June 03, 2026 @06:36AM (#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 there.
The biofeedback can be accessed via browser without creating an account. The link and details are in the repo README.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Wednesday June 03, 2026 @05:57AM (#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 ML layer to deal with some of these variations but only after basic signal checks. The hard part is to decide when the microphone signal is too ambiguous to use at all...
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Wednesday June 03, 2026 @04:08AM (#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 to your project?
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Wednesday June 03, 2026 @02:35AM (#48380693)
there is a no-account path for the browser version of the biofeedback feature now.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Wednesday June 03, 2026 @02:30AM (#48380656)
The Android app is now available in all Play Store countries except mainland China
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Wednesday June 03, 2026 @02:22AM (#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 posting.
The README is corrected now, and there is a no-account path for the browser biofeedback demo.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Tuesday June 02, 2026 @06:10PM (#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.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Tuesday June 02, 2026 @06:04PM (#48376965)
You are absolutely right and I am sorry. The README is misleading. The core detection runs without an account in the code, but in the published app you currently can not reach it without signing up.
README is corrected and I look at adding a guest mode. Thanks for catching this.
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Tuesday June 02, 2026 @05:43PM (#48376742)
You are absolutely right. Android is currently only released in DACH (Germany, Austria, Switzerland, Liechtenstein), iOS has wider availability. I was a little anxious about full exposure… Netherlands is on top of my list for Android
Re:Show HN: Live breath detection and biofeedback from a phone microphone
on Tuesday June 02, 2026 @05:38PM (#48376692)
Honest answer: it is a commercial app with a 14 day free trial and the login is tied to that. No deeper technical reason. I understand that this is annoying when you just want to try it. I will think about a local-only mode…
Thanks for the question.