Enterprise Compliance & Architecture

The IND CORE™ Metrology Standard

At its core, FreqCheck™ operates as a fully calibrated, forensic-grade frequency measurement engine. Powered by proprietary Infrasonic Neural Detector (IND CORE™) technology, the software places an ISO/IEC 17025:2017-accredited, NIST-traceable measurement facility directly into a mobile iOS environment.

The IND CORE™ engine actively performs real-time Fast Fourier Transform (FFT) spectral decomposition, adaptive noise cancellation, Hanning-windowed signal segmentation, and dynamic root-mean-square amplitude normalization. This fundamental architectural shift replaces the heavy, network-dependent DAQ benches of the past with rapid, edge-computed deployment.

Analytical work is elevated to the highest global benchmark of precision.

The Three-Layer Forensic Integrity Architecture

When FreqCheck™ captures a measurement, it doesn't just record data. It creates a legally defensible, forensically tamper-evident, cryptographically sealed measurement artifact. This ensures that every test result you produce holds up in academic peer review, regulatory proceedings, engineering liability cases, and courts of law.

This is made possible by our proprietary Three-Layer Integrity Architecture:

Layer 1 Device-Hash Anchoring: The measurement report permanently records the unique hardware signature of the specific iOS device that performed the measurement. The instrument and the data are cryptographically married.

Layer 2 SHA-256 Cryptographic Sealing: At the precise moment of report generation, every data point—every frequency value, every amplitude measurement, every timestamp—is mathematically sealed using SHA-256 cryptographic hashing. The data cannot be altered without breaking the seal.

Layer 3 Digitally Signed PDF Export: The final exported report is a professionally formatted, cryptographically signed PDF document. If any value, graph, timestamp, or data point in that document is altered by even a single digit after generation, the forensic checksum immediately indicates tampering.

This is how FreqCheck™ transforms a smartphone into a forensic instrument. The data it produces is not just accurate—it is provably, demonstrably, cryptographically accurate.

Your data is provably, demonstrably, and cryptographically bulletproof.

Signal Inputs: FreqCheck™ Meets the World Wherever It Is

FreqCheck™ integrates multiple input vectors to bypass standard mobile audio constraints, adapting the analyzer to virtually any industrial, acoustic, or electrical environment.

Built-in iOS Hardware: Perfect for immediate, compliant environmental surveys utilizing the device's native architecture.

External DAQ & DC-Coupled Injection: For legacy integration, FreqCheck natively accepts analog telemetry from premium external data acquisition modules (such as the RogaDAQ) via direct DC-coupled line-in routing.

Digital Class-Compliant USB: For pure bypass capability, the engine seamlessly integrates with self-contained digital measurement hardware, like the ROGA iSV1611 USB microphone. Because digitization happens entirely inside the microphone casing, it streams pure, pre-converted telemetry down to 0.5 Hz directly into the FreqCheck engine, completely bypassing the iOS internal audio filters without requiring external power supplies or line-in modules.

You are fully equipped to handle any measurement challenge seamlessly.

The Community Standard: FreqCheck Data Network

FreqCheck™ is not just an instrument. It is becoming a platform.

The FreqCheck Data Network — currently in development — will serve as the world's first open repository of certified, cryptographically sealed low-frequency acoustic and seismic measurement data captured on mobile iOS devices. Verified users will contribute real-world FreqCheck log files from their own environments, hardware configurations, and use cases — organized into searchable collectives by frequency range, sensor type, location, and application.

Every file in the repository carries the same forensic integrity as the instrument that produced it: device-anchored, SHA-256 sealed, and tamper-evident.

The result will be an unprecedented, living, crowd-sourced map of the infrasonic world — contributed by researchers, engineers, audiologists, architects, building inspectors, wellness practitioners, and everyday users — all sharing a common certified standard.

One format. One standard. Every user. Every device. Every environment.

The democratization of advanced metrology at an unprecedented scale.

Enterprise & Industrial Applications

Because FreqCheck™ measures continuously from 0.5 Hz through the 100 Hz spectrum, its core applications span multiple heavy industries:

Structural & Industrial Engineering: Measure the natural resonant frequencies of critical infrastructure and industrial machinery to detect shifts in vibrational signatures, enabling rapid, field-deployable health monitoring.

Ocean & Seismic Monitoring: Pair with certified hydrophones or DC-coupled seismic sensors to identify low-frequency acoustic events, tectonic shifts, and subsurface anomalies down to the sub-1 Hz range.

FCC Part 90 Licensing Coordination: Analyze baseband signals from demodulated Part 90 radios via DC-coupled inputs down to 0.5 Hz. Generate cryptographically sealed reports for frequency coordination evidence.