Signal processing, on-device ML, and evaluation systems.

Software R&D and prototype integration for defense and dual-use applications. Work spans acoustic sensing, computer vision, and the systems that retain and evaluate their results. WhirledPiece is a released product. Sylph is a research program in development.

Capabilities and deliverables

Sensing and inference

Acoustic event detection, on-device model integration, image registration, and geometric measurement.

Deliverables: Instrumented prototype, runtime integration, and profiling report.

Technical evaluation

Reproducible comparisons, reviewed datasets, latency measurement, and failure analysis.

Deliverables: Test plan, evaluation harness, and report with operating limits.

Application and system integration

Device and web applications, review interfaces, asynchronous synchronization, and data provenance.

Deliverables: Working implementation, interface documentation, and repeatable validation.

Programs

  1. WhirledPieceReleased

    On-device acoustic event detection and photographic measurement in a released iPhone and web product, with correctable records and model provenance.

    Case study
  2. SylphIn development

    Research into passive sensing, sensor fusion and aircraft autonomy for site observation.

    sylphflight.ai

Commercial implementation

WhirledPiece

Version 1.0 released September 9, 2026. Available now on the App Store.

Measure impulsive acoustic events on a phone while retaining a correctable record under range noise and reverberation. Derive paper-target practice scores from photographs with reviewable alignment and marks.

A signal-processing frontend locates acoustic onset. An on-device classifier reviews candidate events while preserving their timestamps. The image path maps target photographs into physical coordinates for scoring. Device and web interfaces retain corrections and model provenance.

Published measurements cover specific devices, recordings, and range conditions. They do not establish performance in other environments. Technical notes and measurement context.

This released implementation demonstrates event timing, visual measurement, and review workflows. Adaptation to a new sensor or operating environment requires separate integration and validation.

Execution and data boundaries

WhirledPiece
Acoustic inference runs on the device. Saved recordings, target photos, and review data synchronize to cloud services when connected. See the product privacy policy.
Project work
Execution environment, data flows, external services, and acceptance criteria are specified for the engagement. Commercial product configurations do not define a customer project's deployment.

Contracting and technical inquiries

Feasibility studies, bounded prototypes, evaluation work, and software integration. Deliverables, execution environment, data handling, and acceptance criteria are defined per engagement.

info@soundsidedesign.com

Soundside Design LLC
Fairfield, Connecticut

Registered in SAM.gov. UEI and CAGE available on request.

NAICS alignment: 541715 (Physical and engineering R&D); 541511 (Custom computer programming); 513210 (Software publishing). Registration details available on request.