| Hi HN, I've struggled with apartment noise for years, so I attempted to engineer a mechanical solution: a decoupled, mass-loaded sleep capsule. I went down a deep rabbit hole involving: - Mass Law vs. decoupling - Building a prototype cube - Accidentally creating a resonance chamber (my prototype amplified bass by ~10dB) - Pivoting to acoustic metamaterials (Helmholtz resonators) and parametric CAD The project was ultimately a failure in terms of silence, but a success in understanding acoustics and regaining a sense of agency. I wrote up the physics, the build process, and the mistakes here. Happy to answer questions about the build. |