Struent Edge-AI Audio Processor
The Struent Edge-AI Audio Processor is a high-performance, ultra-efficient hybrid DSP + AI SoC designed to deliver advanced far-field voice recognition, multilingual translation, spatial audio, wellness analytics, and generative-AI-powered intelligence — all executed entirely on-device.
Positioned above the coprocessor in capability, this processor powers premium hearables, smart glasses, smart speakers, video doorbells, and automotive audio systems that demand complete speech and sound understanding — far beyond simple wake-word detection.
At its core, the processor combines a dedicated Audio DSP for deterministic signal processing (AEC, NS, beamforming, and spatial audio) with a Neural Processing Unit (1024 MACs) optimized for transformer/conformer-lite inference.
This enables sophisticated on-device models — including ASR-lite (50–200 commands), 20+ language translation, and real-time wellness and safety analytics — all within an active power envelope of just 5–50 mW, dropping to under 1 mW in idle mode.
For OEMs, it introduces a new level of product intelligence and differentiation — enabling devices that listen, understand, and respond locally with unmatched privacy and near-zero latency. For investors, it signifies the shift of audio AI from cloud to edge, tapping into a rapidly expanding $20B+ silicon TAM across consumer and automotive markets.
Block Diagram
Key Features
Compute Architecture
Dual-domain system: Audio DSP + NPU (1024 INT8/INT4 MACs) for simultaneous signal and neural processing.
Power Efficiency
1 mW always-on; 5–50 mW active depending on ASR or translation workload.
Voice & ASR-lite
Wake-words + 5–10-word phrases; command recognition for 50–200 intents; transformer/conformer-lite models.
Multilingual Translation
Offline speech translation and command response across 20+ languages, optimized for local execution.
Spatial Audio & Beamforming
4–8 mic array input; head-tracked 3D audio rendering for hearables and AR/VR; DOA, AEC, NS, AGC.
Advanced Wellness Analytics
Detects cough, snore, apnea, respiration variability, wheeze, stress, sleep phases, and falls (mic + IMU).
Safety Awareness
Recognizes glass break, horn, siren, bang, alarm; configurable multi-zone detection.
Sensor Fusion
Integrates IMU/gyro for head-tracking, fall detection; optional environmental sensors for contextual awareness.
Generative AI Hooks
Lightweight transformer path for speech-to-intent and hybrid edge-cloud inference.
Personalization
Per-user voiceprint profiles and accent adaptation; local learning for personalized ASR accuracy.
Security & Privacy
Secure enclave; hardware root-of-trust; encrypted event pipeline; hardware mic-mute/privacy switch.
Interfaces
4–8 × PDM/I²S/TDM mic in; 1–2 × I²S/TDM out; I²C/SPI/UART control; IRQ lines; OTA update path.
Memory System
System SRAM, NPU SPAD, external Octal QSPI NOR for models.
Package Options
QFN/WLCSP (5 × 5 mm typical) or SiP with Bluetooth/Wi-Fi module.
Applications
PREMIUM HEARABLES / HEADPHONES
PREMIUM HEARABLES / HEADPHONES
Smart voice, translation, spatial sound, and wellness — all on-device.
PREMIUM HEARABLES / HEADPHONES
PREMIUM HEARABLES / HEADPHONES
Smart voice, translation, spatial sound, and wellness — all on-device.
SMART GLASSES / AR-VR HEADSET
SMART GLASSES / AR-VR HEADSET
Powers hands-free commands, real-time translation, 3D audio, and context-aware AR/VR.
SMART GLASSES / AR-VR HEADSET
SMART GLASSES / AR-VR HEADSET
Powers hands-free commands, real-time translation, 3D audio, and context-aware AR/VR.
SMART SPEAKERS / SOUNDBARS / HUBS
SMART SPEAKERS / SOUNDBARS / HUBS
Provides far-field ASR, ambient safety sensing, and on-device wellness analytics.
SMART SPEAKERS / SOUNDBARS / HUBS
SMART SPEAKERS / SOUNDBARS / HUBS
Provides far-field ASR, ambient safety sensing, and on-device wellness analytics.
AUTOMOTIVE & IN-CABIN SYSTEMS
AUTOMOTIVE & IN-CABIN SYSTEMS
Enables in-cabin voice control, multi-zone audio, and safety sensing for automotive applications.
AUTOMOTIVE & IN-CABIN SYSTEMS
AUTOMOTIVE & IN-CABIN SYSTEMS
Enables in-cabin voice control, multi-zone audio, and safety sensing for automotive applications.
HEALTHCARE & WELLNESS DEVICES
HEALTHCARE & WELLNESS DEVICES
On-device analysis of cough, snore, apnea, breathing, and stress for digital health and elderly monitoring.
HEALTHCARE & WELLNESS DEVICES
HEALTHCARE & WELLNESS DEVICES
On-device analysis of cough, snore, apnea, breathing, and stress for digital health and elderly monitoring.
ENTERPRISE / INDUSTRIAL HEADSETS
ENTERPRISE / INDUSTRIAL HEADSETS
Voice commands, translation, and safety sound detection for noisy workplaces with edge AI.
ENTERPRISE / INDUSTRIAL HEADSETS
ENTERPRISE / INDUSTRIAL HEADSETS
Voice commands, translation, and safety sound detection for noisy workplaces with edge AI.
