Modern head-worn hearing protection devices combine noise reduction, Bluetooth connectivity, and active listening. For near-field or close-talk applications—such as headsets for industrial workers, construction, or outdoor operations—the microphone must capture voice clearly while minimizing ambient noise. The Close-Talk Microphone for Head-Worn, ECM-B1045UML50-25082, is designed for these challenges, delivering excellent voice clarity and ambient noise rejection.
Challenges in Close-Talk, Head-Worn Applications
- High background noise from machinery, vehicles, or outdoor environments
- Maintaining speech clarity at short distances from the mouth
- Lightweight, compact design for comfortable all-day wear
- Robust performance despite variable positioning and movement
Microphones for these devices require focused directional pickup, high signal-to-noise ratio, and a balanced frequency response to ensure natural and intelligible voice capture.
ECM-B1045UML50-25082: Key Specifications
| Parameter | Specification |
|---|---|
| Dimensions | 10 × 4.5 mm |
| Directivity | Unidirectional (focuses on front sound) |
| Sensitivity | -50 dB ±2 |
| Impedance | 2 kΩ |
| Signal-to-Noise Ratio | 65 dB |
| Maximum Sound Pressure | 125 dB |
| Frequency Response | 100 Hz ~ 10 kHz |
Frequency Response
Frequency response highlights for near-field applications:
| Frequency Range | Characteristics |
|---|---|
| 100 – 500 Hz | Stable low-frequency response for environmental awareness |
| 500 Hz – 2 kHz | Balanced midrange ensures natural voice capture |
| 5 – 10 kHz | Slight high-frequency boost improves speech clarity |
Why It Excels in Near-Field, Head-Worn Use
- Unidirectional pickup: Focuses on speaker’s voice, reduces ambient noise
- High SNR: Low self-noise ensures clean voice capture
- Compact size: Easy integration in headsets or ear-mounted devices
- Balanced frequency response: Captures natural voice without harsh peaks
Customization and Production Capabilities
ECM-B1045UML50-25082 is ideal for close-talk, head-worn hearing protection devices, providing clear, natural voice capture even in noisy environments. At ECMIC, we combine technical expertise and advanced production capabilities to deliver custom microphone solutions tailored to your specific needs. Our services include:
- Custom microphone designs for specific form factors or acoustic requirements
- Prototyping and testing to ensure optimal performance
- Volume manufacturing to support large-scale production
Learn more about our high-performance electret microphones and customization capabilities at ECMIC Electret Microphones.
