AI-Based Headphone Acoustic Anomaly Test System
AI Listening Replacing Human Judgment
Defect Detection via Good-Unit Modeling
Rapid Deployment on a Standardized Platform
Overview
System Block Diagram
> The Bluetooth dongle controls the device under test to play audio sources, while the CRY711 simulation ear collects data
> The software AI algorithm analyzes the wave file and outputs the test results
Features
- AI-Driven Intelligent Acoustic Anomaly Detection
At the core of the solution is an AI-based listening algorithm that learns the acoustic characteristics of good units to establish a stable normal sound model. By comparing test audio against this model, abnormal features are effectively amplified, enabling highly sensitive detection of rubbing noises, transient anomalies, and steady-state acoustic defects. Even in scenarios where conventional analysis methods fail to differentiate defects, the system delivers stable and reliable judgments.
- High-Efficiency Parallel Testing for Mass Production
The system supports parallel, multi-station testing, allowing multiple headphones to be evaluated simultaneously. This significantly improves test throughput while maintaining high detection accuracy, effectively replacing manual listening and meeting the stringent efficiency and stability requirements of high-volume production lines.
- Consistent Test Environment and High Replicability
Through a box-in-box acoustic isolation structure and standardized test fixtures, environmental noise interference is minimized, ensuring consistent and comparable test results across different stations and production batches. The modular system design enables flexible deployment and rapid replication, making the solution suitable for R&D validation, pilot production, and large-scale mass manufacturing.
AI Algorithm Overview
System Devices
CRY725D Pneumatic Acoustic Test Chamber
CRY6151B Electroacoustic Analyzer
CRY6151B is a robust and reliable electroacoustic analyzer with a frequency range spanning from 20Hz to 20kHz. It is designed to evaluate a diverse array of devices, including USB, Bluetooth®, and noise-canceling headphones; electret, MEMS, and moving-coil microphones; receivers; speakers; Bluetooth loudspeakers; and loudspeaker crossover devices.
Technicians can assess device performance using key metrics and procedures such as sensitivity (SPL), impedance, total harmonic distortion (THD), resonance frequency (F0), headphone balance, headphone positioning, phase, polarity, microphone current and voltage, signal-to-noise ratio (SNR), microphone directivity, speaker Thiele/Small (TS) parameters, and telephone loudness ratings. The CRY6151B offers comprehensive capabilities for thorough and precise evaluation of electroacoustic equipment.
Get in touch
Are you seeking more information about CRYSOUND’s solutions or need a demo? Contact us via the form bleow and one of our sales or support engineers will connect with you.
