ZIAA ARCHIVE RECORDPROTOTYPES
PROT-158prototypeVERIFIED RECORD
Underground Resonant Acoustic Vault with 18.4s Natural Reverberation (Revision 5.2)
PROT-158: SUBTERRANEAN-VAULT-V5CLEARANCE: 3-GAMMASTATUS: RESTRICTED EVALYEAR: 2022
Underground Resonant Acoustic Vault with 18.4s Natural Reverberation (Revision 5.2)
Discipline: Acoustic Architecture · Lead Researcher: Camille Laurent
OPERATIONAL ABSTRACT
A subterranean concrete acoustic research chamber engineered with non-parallel walls and hardened reflective surfaces, sustaining an 18.4-second natural acoustic decay. Enhanced revision 5 with improved low-noise shielding and updated real-time firmware.
TECHNICAL SUMMARY & TRANSDUCTION DYNAMICS
High-SPL acoustic excitation drivers inject test impulses into the room. A 16-channel microphone array measures high-order spatial impulse responses across varying humidity levels. Calibrated for studio and field use under ZIAA experimental protocols. Harmonic distortion measured under 0.02% across primary operating range.
ENGINEERING SPECIFICATIONS
DIMENSIONS
520 × 245 × 135 mm
OPERATIONAL BANDWIDTH
20 Hz – 50 kHz
POWER CONSUMPTION
33 W (PoE+ Gigabit Ethernet)
SIGNAL-TO-NOISE
107 dB (A-Weighted @ 1 kHz)
PRIMARY TRANSDUCER
Heavy-duty horn-loaded sub-bass drivers and calibrated measurement mics
COMPUTATIONAL CORE / DSP
Multichannel 24-bit audio interface with remote automated measurement daemon
VECTOR TECHNICAL SCHEMATIC // BLUEPRINT
FIG 3.2 // POLAR RADIATION DIRECTIVITY & NULL LOBES
POLAR: SUBTERRANEAN-VAULT-V5PLAYABLE PROTOTYPE ACOUSTIC EMISSION BENCH
ZIAA ACOUSTIC SYNTHESIS TEST BENCH // V4.1STANDBY
SUBTERRANEAN-VAULT-V5 // CALIBRATION PROFILE
CH-A TIME-DOMAIN OSCILLOSCOPE (1024-PT)STEREO BINAURAL
CH-B 64-BAND SPECTRAL OCTAVE DECOMPOSITION20 Hz – 20 kHz
CARRIER137.5 Hz
FM RATE10.9 Hz
BINAURAL Δ±4.0 Hz
CUTOFF580 Hz
RESONANCE Q15.0
CAVITATION11%
WAVE:
FILTER:
35%
BILL OF MATERIALS (BOM) & COMPONENT TOLERANCES
| Component | Supplier | Part No. | Tolerance |
|---|---|---|---|
| Precision Audio Transducer Assembly | ZIAA Precision Machining Shop | ZIAA-TX-107 | ±0.02 mm |
| Ultra-Low-Noise Operational Amplifiers | Texas Instruments / Burr-Brown | OPA1612A-SOIC8 | 0.000015% THD+N |
| Embedded DSP Microcontroller Core | PJRC / STMicroelectronics | STM32H743VIT6 480MHz | Industrial -40C to +85C |
| Conductive Plastic Continuous Potentiometers | Bourns Electronics | 3852A-282-103AL | ±10% Linear |
| Machined Anodized Aluminum Enclosure | ZIAA Mechanical Prototyping Bench | ENC-AL-207 | MIL-A-8625 Type II |
BENCH & FIELD OPERATION NOTES
- High acoustic output capability: monitor SPL levels during resonant feedback experiments.
- Precision optical components: protect lenses from direct dust and moisture during field deployment.
SPECULATIVE PATENTS:PAT-2022-038
FIELD SITES:Field Station Alpha (Desert Listening Sanctuary)