Abstract
The UAAP-2.0 is a physical, buildable Multi-Channel Active Acoustic Control and Sensing Array. It stabilizes acoustic environments by actively canceling unwanted resonance (noise) while simultaneously capturing high-fidelity acoustic signatures for research.
In engineering terms, "Acoustic-Adaptive Stability" is implemented as a Multi-Channel Feedforward/Feedback Active Noise Control (ANC) System running on an FPGA. It uses reference microphones to detect incoming disturbances and error microphones to monitor the "quiet zone," driving speakers to inject anti-phase sound waves that cancel noise in real-time. Simultaneously, it acts as a high-resolution acoustic sensor array for detecting specific events (e.g., dementia patient distress, wildfire crackle).
This document provides the exact specifications, Bill of Materials (BOM), schematics, and FPGA control logic to construct a prototype that achieves >35dB broadband noise reduction and <1% Total Harmonic Distortion (THD) in output, compliant with biomedical safety standards.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Caldwell, Michael Victor Mr., "UAAP-2.0: Unified Acoustic-Adaptive Platform (Physical Prototype Edition) Date: 2026-07-29 Status: Open-Hardware • Builder-Grade • Test-Bench Ready", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/11225