Yealink VCM38 Ceiling Microphone Array

Here are the quick specifications for the Yealink VCM38 Ceiling Microphone Array:

🎤 Yealink VCM38 Ceiling Microphone Array – Key Specifications

Microphone Array

• 8 built-in microphones in a 360° setup, offering beamforming for speaker-focused voice capture
• Beamforming technology to automatically locate and optimise voice pick-up for active speakers
• Audio quality features:
  • Optima HD voice
  • Yealink Noise-Proof Technology
  • Acoustic Echo Cancellation (AEC)
  • Voice Activity Detection (VAD)
  • Comfort Noise Generator (CNG)

Audio Performance

• Frequency range: 100 Hz – 16 kHz
• Sensitivity: –45 dB ±1 dB @ 1 kHz (0 dB = 1 V/Pa)
• Signal-to-noise ratio (SNR): ~60 dBA @ 1 kHz
• Max sound pressure level: 100 dB SPL @ 1 kHz (THD < 1 %)

Coverage & Scalability

• A single VCM38 unit covers ~40 m² (~430 ft²) per unit
• Supports up to 8 units daisy‑chained to expand coverage seamlessly for oversized meeting rooms

Installation & Connectivity

• Power over Ethernet (PoE) support: only one RJ45 connection is required for both power and data; compliant with IEEE 802.3af
• Inputs:
  • PoE: 48 V @ 0.27 A or 54 V @ 0.56 A
• Installation options:
  • Flush-mounted on ceiling
  • Suspended via telescopic rod (30–60 cm / ~12–23.5″) to keep table area unobstructed
• Recommended mounting height: ~2.5 m (8 ft) above the floor; adjustable per room configuration

Physical & Environmental Specs

• Dimensions: 127.3 × 127.3 × 66.3 mm
• Operating temperature: 0 °C – 40 °C
• Operating humidity: 5 % – 90 % RH (non-condensing)

Package Contents

• 1 × Yealink VCM38 Ceiling Microphone Array
• 1 × Telescopic rod (30–60 cm)
• 1 × Quick Start Guide

✅ Summary

• The VCM38 is designed for medium to large meeting rooms, offering 360° audio pickup with beamforming and noise‑reduction technologies.
• Easy deployment via PoE and optional telescopic mounting supports clean room aesthetics.
• Scalable installation—one unit covers up to ~40 m²; up to 8 units can be networked for larger spaces.
• A robust choice when integrated with Yealink systems like Teams Rooms or Yealink UVC cameras, thanks to native compatibility .

⚠️ Notes & Considerations

• Room acoustics matter: users have noted that in some installations, ceiling mics can pick up ambient noise like keyboard clicks or echo, requiring careful tuning of sensitivity, firmware, and usage of Yealink full-audio stack for optimal echo cancellation .
• Echo issues have been reported in some setups using third-party speakers or non-Yealink DSPs—even without room speakers connected. Full duplex functionality works best with Yealink audio/peripherals .