Long Distance Pickup

Long-Distance Pickup
Mic Solution

High-sensitivity microphone solution for 30~100cm voice capture. Omnidirectional design with -26dB to -38dB sensitivity. Ideal for security cameras, conference systems, parabolic microphones, and smart speakers.

Omnidirectional -26~-38dB Sensitivity SNR ≥ 65dB Security & AV Ready
Recommended Models Complete long-distance pickup microphone selection
Image Model Size Pattern Sensitivity SNR Key Feature Application
ECM-F9745AL36-186 ECM-F9745AL36-186 9.7×4.5mm Omnidirectional -36dB 65dB Mid-band boost (2K-5KHz), anti-reverberation Security camera / Outdoor surveillance
ECM-B9745AL30RC ECM-B9745AL30RC 9.7×4.5mm Omnidirectional -30dB 74dB Highest sensitivity, flat 50-20KHz response Video conference / Smart speaker
ECM-B9750AL26-062 ECM-B9750AL26-062 9.7×5mm Omnidirectional -26dB 82dB Ultra-high sensitivity, exceptional SNR Parabolic microphone / Extreme long distance
Technical Approach How to achieve long-distance voice capture
01
High sensitivity

Target: -26dB ~ -38dB — Higher sensitivity allows effective voice pickup from 30~100cm distance without requiring the speaker to be close to the mic.

02
Omnidirectional polar pattern

Picks up sound from all directions — essential for fixed installations where speaker position is variable, such as security cameras, conference rooms, and smart speakers.

03
Wide-band frequency response & anti-reverberation

Optimized for 50Hz ~ 20kHz with slight low-cut below 300Hz. Reduces room reverberation and ambient noise while enhancing speech intelligibility at distance.

04
High SNR & stable gain

SNR ≥ 65dB (up to 82dB) ensures clean signal-to-noise ratio. High sensitivity combined with high SNR provides stable gain without excessive noise floor.

Parameter Strategy Selection standard for long-distance pickup
Parameter Requirement Why It Matters
Polar Pattern Omnidirectional Captures voice from any direction — essential for fixed installations with variable speaker position
Sensitivity -26dB ~ -38dB (mid-high sensitivity) Higher sensitivity enables effective pickup at 30~100cm distance
Frequency Response Slight low-cut below 300Hz, wide-band up to 20kHz Reduces room reverberation and ambient noise, enhances speech clarity
SNR ≥ 65dB Ensures clean signal extraction from noise floor at long distance

Quick Selection Guide

Choose by your primary requirement — no complex calculations.

Security camera / Surveillance?
→ ECM-F9745AL36-186 (mid-band boost for voice clarity)
Video conference / Smart speaker?
→ ECM-B9745AL30RC (flat response, high sensitivity)
Parabolic / Extreme long distance?
→ ECM-B9750AL26-062 (-26dB, SNR 82dB)
Highest SNR required?
→ ECM-B9750AL26-062 (SNR 82dB)
Maximum pickup distance needed?
→ ECM-B9750AL26-062 (-26dB ultra-high sensitivity)
Critical rule
→ SNR ≥ 65dB for clean long-distance pickup
Key Specifications Critical parameters for long-distance pickup
-26 ~ -38dB
Sensitivity
Mid-high range for 30~100cm pickup
Omnidirectional
Polar Pattern
360° pickup for variable speaker position
50Hz~20kHz
Frequency Response
Wide-band for natural voice reproduction
≥ 65dB (up to 82dB)
SNR
Clean signal extraction at distance

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