ZIAA ARCHIVE RECORDPROTOTYPES
PROT-020prototypeVERIFIED RECORD
Perceptual Binaural Auditory Mask with Zygomatic Bone Conductors
PROT-020: BINAURAL-MASKCLEARANCE: BLACK-BOXSTATUS: CONTAINED HAZARDYEAR: 2022
Perceptual Binaural Auditory Mask with Zygomatic Bone Conductors
Discipline: Perceptual Interfaces · Lead Researcher: Isolde Chen
OPERATIONAL ABSTRACT
A wearable sound research headset combining open-ear directional acoustic speakers with bone-conduction transducers placed against the cheekbones.
TECHNICAL SUMMARY & TRANSDUCTION DYNAMICS
Direct bone stimulation bypasses the eardrum to transmit high-frequency transients directly to the cochlea, while open-air drivers deliver natural spatial ambiance. Calibrated for studio and field use under ZIAA experimental protocols. Harmonic distortion measured under 0.02% across primary operating range.
ENGINEERING SPECIFICATIONS
DIMENSIONS
440 × 245 × 175 mm
OPERATIONAL BANDWIDTH
30 Hz – 58 kHz
POWER CONSUMPTION
24 W (PoE+ Gigabit Ethernet)
SIGNAL-TO-NOISE
109 dB (A-Weighted @ 1 kHz)
PRIMARY TRANSDUCER
Piezoelectric bone conduction pads and ultra-miniature balanced armatures
COMPUTATIONAL CORE / DSP
Battery-powered wireless DSP module running custom HRTF spatial filtering
VECTOR TECHNICAL SCHEMATIC // BLUEPRINT
FIG 5.1 // GEOLOGICAL BOREHOLE STRATA & GEOPHONE TOPOLOGY
FACILITY: BINAURAL-MASKPLAYABLE PROTOTYPE ACOUSTIC EMISSION BENCH
ZIAA ACOUSTIC SYNTHESIS TEST BENCH // V4.1STANDBY
BINAURAL-MASK // CALIBRATION PROFILE
CH-A TIME-DOMAIN OSCILLOSCOPE (1024-PT)STEREO BINAURAL
CH-B 64-BAND SPECTRAL OCTAVE DECOMPOSITION20 Hz – 20 kHz
CARRIER302.5 Hz
FM RATE13.3 Hz
BINAURAL Δ±3.0 Hz
CUTOFF830 Hz
RESONANCE Q5.5
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-119 | ±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-219 | 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-2022-020
FIELD SITES:Studio D (Computational Creativity & Generative Software)