English 
Chinese By:SISTC Company Technical Team | Published: October 2025
Introduction: Revolutionizing Microphone Technology for Voice Interaction
As smart homes, wearables, and industrial IoT rapidly evolve, high-performance MEMS microphones have become critical for precise voice interaction. SISTC, a leading MEMS manufacturer in China, introduces innovative piezoelectric solutions that overcome the limitations of traditional capacitive microphones. Through technical parameter comparisons and application scenarios, this article highlights the superior advantages of piezoelectric MEMS microphones in SNR, waterproofing, power efficiency, and more.
Technical Parameter Comparison
| Parameter | ECM #1 | ECM #2 | Capacitive MEMS | Piezoelectric MEMS (VM1001) |
|---|---|---|---|---|
| Volume (mm³) | 24.3 | 16.32 | 9.27 | 11.09 |
| SNR (Discrete Mic) | 70 dBA | 60 dBA | 65 dBA | 62 dBA (System-Level: 62 dBA) |
| IP Rating | None | None | None | IP57 |
| Max SPL | 110 dB | 110 dB | 124 dB | 125 dB |
| Sensitivity Tolerance | ±3 dB | ±3 dB | ±1-3 dB | ±1 dB |
*Data sources: Vesper Technologies,Wuxi Silicon Source Technology Co., Ltd.Lab Tests
7 Core Advantages of Piezoelectric MEMS Microphones
- Industry-Leading Signal-to-Noise Ratio (SNR)Piezoelectric technology achieves >75 dB SNR (theoretically exceeding 80 dB) with a single diaphragm. In contrast, capacitive designs require 4 stacked diaphragms to reach 70 dB, increasing cost and reliability risks.
- IP57/IPX8 Environmental RobustnessResists sweat, dust, and water without protective meshes, ideal for hearing aids and outdoor devices.
- Microsecond-Level Wake-Up Time<100 μs startup (1,000x faster than capacitive), enabling “always-listening” mode while reducing system power consumption by 90%.
Key Application Scenarios
- Smart Home: Far-field voice recognition in noisy environments (e.g., capturing commands from 50 meters).
- Industrial IoT: Reliable audio capture in high-dust facilities.
- Medical Wearables: Waterproof hearing aids and health monitoring devices.
Request Free Samples & Technical Consultation
As a leading MEMS manufacturer in China,Wuxi Silicon Source Technology Co., Ltd. offers full-range piezoelectric MEMS microphone solutions. Apply now for free samples:
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Contact our technical team for customized solutions and download the complete technical whitepaper.
