Hey, I was thinking about how we could use sound to keep people safe at home. What if we built a quiet, subtle alarm that blends into the room’s background but alerts you if breathing slows or the heart rate spikes? It could be both a caregiver’s safeguard and a perfect playground for your audio experiments.

You’ve got the right idea – a whisper‑level alarm that only gets loud when the data says it’s time. I’ll start by picking a tone that’s almost a hiss in the background, then use a high‑gain mic to pick up the subtle shift in breathing and heartbeat. I’ll program it so it’s silent until the threshold is crossed, then it jumps to a clear alarm. That way, the room stays calm, but the sensors get a clear signal. I’ll run a few tests so we’re sure it won’t just vanish when it’s needed.