Show HN: Live breath detection and biofeedback from a phone microphone
Summary
A GitHub Show HN-style post about shiihaa-breath-detection, a live breath detection and biofeedback system that processes microphone input on-device. It outlines the architecture (signal processing, a breathing state machine, and data-quality checks), notes the combination of rule-based processing with ML, and emphasizes privacy by avoiding speech analysis and raw audio uploads. The project aims to validate breath detection in real-world mobile settings and invites community feedback.