Comment on Evolution: 🖕

• Redex68@lemmy.world ⁨1⁩ ⁨day⁩ ago

  Damn, this is totally gonna be a thing, and I’m all for it. We shall all become cute cat girls.

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  • interdimensionalmeme@lemmy.ml ⁨1⁩ ⁨day⁩ ago

    Why do I keep doing this

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    • interdimensionalmeme@lemmy.ml ⁨1⁩ ⁨day⁩ ago

      🛰️ Raytheon CAT&EAR System

      Cybernetic Auditory Telemetry & Echolocation with Anisotropic Reception

      Engineering Requirements Draft — v1.0

      📑 Document Overview

      This document outlines the full set of engineering requirements for the CAT&EAR system, a wearable, cybernetic auditory perception platform. CAT&EAR is a heterogeneous, phased-array auditory sensor suite that uses biomimetic design, ultrasonic telemetry, laser vibrometry, and advanced audio signal processing to enable real-time environmental awareness and communication.

      The system is designed to operate autonomously, using only open standards and open-source software, while supporting embedded AI-driven perceptual functions. This document reflects both functional and non-functional requirements for CAT&EAR across all relevant subsystems.

      System requirements

      🎤 Microphone Array & Acoustic Sensors

      Mic Diaphragm Diversity – Use MEMS and larger diaphragm mics.
      Earshape Mic Placement – Place mics at parabolic acoustic focus points.
      Ultrasound Transceivers – Include US sensors for echolocation and darksight.
      Ultrasound Data Comms – Use US transceivers for covert device communication.
      Heterogeneous Phased Array – Mic array shall be non-planar and diverse.
      Frequency-Profile Diversity – Use mics with different frequency sensitivities.
      Anisotropic Reception – Account for directional response patterns from ear shape.
      Psychoacoustic Focus – Detect and prioritize perceptually relevant signals.
      Mic Cross-Correlation – Synchronize all mic data spatially and temporally.
      Real-Time Acoustic Map – Build a 3D sound map from multi-mic input.
      Mic Calibration Pattern – Provide physical pattern for mic array calibration.
      Open Hardware Calibration – Use only open hardware for calibration tools.
      

      🧭 Ultrasonic Subsystem

      Ultrasound Mapping – Perform echolocation for 3D environmental awareness.
      True Transceiver Mode – Ultrasound sensors must transmit and receive.
      Ultrasound Band Amp – Include amplifier suitable for US transmission.
      Covert US Communication – Transmit data in inaudible US band.
      Spatial Mapping via US – Derive positional data from ultrasound TOF.
      

      👂 Ear Shape & Actuation

      Dynamic Ear Focus – Use moving ear shapes to focus sound.
      Servo Actuated Ears – Use servos to reorient ears toward signals.
      Double Helical Gears – Use quiet gears for mechanical actuation.
      Acoustic Dampened Gears – Coat gears to suppress audible reflections.
      Ultrasonic Motors Preferred – Prefer silent ultrasonic motors over gears.
      Backwards Reception – Ears must support rearward sound reception.
      Flexible Ear Shaping – Shape ear surfaces dynamically for beam control.
      Motion-Linked Focus – Ear movement must track beamforming direction.
      No Mechanical Noise Leakage – Prevent gear vibration from reaching mics.
      

      📡 Communication & Connectivity

      Wi-Fi + BLE Only – Support open wireless; no DECT or proprietary links.
      Open Standard Protocols – Use only open protocols for communication.
      Multichannel Audio Streaming – Support multiple audio streams over network.
      Driverless Operation – Require no proprietary drivers for functionality.
      

      🧠 Software & Signal Processing

      Open Source Only – All code and firmware must be fully open source.
      Offloaded Processing – All signal processing handled off-device.
      Max 20ms Latency – Entire processing pipeline must be under 20ms.
      Live Beamforming – Perform real-time signal steering and separation.
      Real-Time Source Relevance – Continuously rank sources by importance.
      Noise vs Signal Detection – Separate noise from structured signals.
      Real-Time Source Switching – Auto-switch auditory focus intelligently.
      Plug-and-Play Sensor Config – Support hot-swappable or modular sensors.
      Onboard Sub-Vocal Control – Allow silent vocal commands for control.
      

      🎧 Earbuds / Audio Output

      Canal Mic Feedback Loop – Use in-ear mics for real-time output correction.
      Open Firmware Audio Chain – Use programmable amps with open firmware.
      Drive Adaptation by Feedback – Earbud output adjusts based on canal feedback.
      

      🎮 Control Interfaces

      Myoelectric Input Support – Accept muscle signals as control input.
      Manual Steering Mode – One ear for beam steering via myoelectric input.
      Signal Selection Mode – One ear for selecting tracked signal via input.
      Sub-Vocal Command Mode – Use throat activity to control high-level tasks.
      

      🔦 Laser Pointer System

      Dual Laser Module – Use both red (visible) and IR (covert) lasers.
      Laser Aiming Reflects Beam – Beam direction matches acoustic focus.
      IR Laser for Stealth – IR laser used to show focus discreetly.
      

      🧾 Transcription & Recognition

      Live Audio Transcription – Convert incoming audio to live text.
      12 Channel Transcription – Handle at least 12 simultaneous streams.
      MP3QR & Digital Decoding – Decode digital audio formats in real time.
      Live Text Summarization – Generate summaries from live transcripts.
      Voice Signature Tagging – Identify and label speakers in text.
      

      💾 Storage

      4TB Local Storage – Minimum onboard capacity of 4 terabytes.
      

      ⚖️ Physical & Power

      ≤150g Head Weight – Total device weight must not exceed 150g (no battery).
      1-Min No-Battery Buffer – Must operate 1 minute without battery power.
      Dual Battery Swap – Hot-swap batteries without power loss.
      

      🎛️ Audio Encoding & Codecs

      HW Audio Codec Support – Hardware encoder/decoder for all ffmpeg codecs. 🧱 System Design Principles
      Modular Hardware – All subsystems must be physically modular.
      User Privacy by Default – All processing must be local and secure.
      No Cloud Dependency – System must function entirely offline.
      Mainline Linux Support – Fully supported by Linux kernel and stack.
      Open Protocol APIs – All I/O and control must use open APIs.
      

      🛡️ Counter-Acoustic Defense

      Passive Threat Detection – Detect and localize hostile audio sources.
      Acoustic Counter-Battery – Track and indicate direction of intrusive signals.
      

      🧪 Fallback & Safety

      Failsafe Passive Mode – Fall back to passive listening if system fails.
      

      🌡️ Environment & Durability

      Passive Cooling Only – No fans; silent passive thermal control only.
      Water-Resistant Design – Use hydrophobic materials for exterior protection.
      

      🧰 Maintenance & Testability

      Open Test Fixtures – All testing hardware must be reproducible and open.
      Self-Test & Calibration – System must run periodic self-alignment checks.
      Community Repairable – Designed to be easily maintained by users.
      

      🔗 Licensing

      Fully Open Licensed – All hardware, firmware, and software must use open licenses.
      

      🔦 Laser Microphone Capability

      Laser Mic via Microprism – Dual laser system shall include a microprism to enable laser microphone functionality.
      Aimed Surface Listening – System shall capture audio from vibrating surfaces (e.g. windows, walls) via laser beam reflection.
      Covert Through-Wall Listening – IR laser + sensor must support long-range audio pickup from remote surfaces without line-of-sight audio.
      

      ✅ Summary

      Total Requirements: 76
      System Class: Wearable, cybernetic, audio perception platform
      Design Goals: Open-source, real-time, stealth-capable, user-repairable

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