How to evaluate Baby Sound Module performance

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The following is a complete technical indicator system and test method for evaluating the performance of the Baby Sound Module:

I. Core Function Testing

Cry Detection Accuracy

Tested using a standard infant cry database (such as the Baby2023 dataset), the accuracy for classifying cry types such as hunger and pain must be ≥95%.
Ambient noise suppression must meet the ISO 7779 standard test, maintaining a detection rate of 90% or higher even in 60dB background noise.

Response Performance

End-to-end response latency must be <300ms (from sound acquisition to triggering an action).
Supported audio formats must include MP3, WAV, and FLAC, with compatible bit rates of 16-320kbps.

II. Hardware Performance Indicators

Test Items	Standard Requirements	Test Tools
Microphone Sensitivity	≥-38dBV/Pa @1kHz	Sound Level Meter + Audio Analyzer
Power Consumption	<5mW in standby mode, <50mW in operation	Digital Power Meter
Wireless Transmission Stability	Signal attenuation ≤3dB within 10 meters	Network Analyzer

III. Extended Function Verification

Multimodal Linkage: Tests protocol compatibility with devices such as cameras and smart lights. Linkage response error must be less than 1 second.
Data Analysis Capabilities: Run continuously for 72 hours to check for memory leaks. Crash rate should be less than 0.1%.
User Interface: Verifies app operational efficiency using Fitts's law. Key function triggering time must be ≤ 2 seconds.

IV. Special Scenario Testing

Extreme Environment: Verifies module reliability under 85% humidity and a temperature range of -10°C to 50°C.
Long-Term Stability: Simulates a 3-year usage cycle. Performance degradation should be less than 15%.
Safety Certification: Must pass FCC/CE radio frequency certification and EN71-1 toy safety standards.