ALPHAL - ALPHAL CM-73A Ceiling Microphone

ALPHAL CM-73A Ceiling Microphone

CM-73A

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Equipped  with  73  high-sensitivity  MEMS  microphones,  providing  360 °omnidirectional coverage and an ultra-wide pickup range. It supports 19 independent beams each for voice pickup  and  sound  reinforcement,  ensuring  precise  coverage  of  all  speaking  areas throughout the venue.

18dB gain boost for seamless sound reinforcement, enabling truly unrestricted speaking—no need  for  handheld  or  lavalier  microphones.  Speak  clearly  without  feedback  whether standing, sitting, or moving around.

Supports the daisy-chain connection of up to four ceiling microphones, making it ideal for large spaces such as conference rooms and lecture halls.

Equipped  with  the  low-latency  ClearVoice  AI  algorithm,  it  automatically  suppresses distractions such as keyboard clicks, air conditioner noise, and ambient background noise; it supports  dynamic  beamforming,  intelligently  dividing  the  audio  pickup  area  during discussions and automatically tracking the speaker during presentations.

Features  one  built-in  Gigabit  Ethernet  port,  simplifying  system  cabling  and  facilitating deployment; its modular design supports both recessed and surface-mounted installation, allowing it to be concealed within the ceiling for a blend of aesthetics and functionality.

Features professional algorithms such as AEC (Echo Cancellation), ANS (Noise Suppression), AGC (Automatic Gain Control), AFC (Feedback Suppression), and ARR (Reverberation Suppression), making remote conference audio sound as natural and lifelike as face-to-face conversation.


Function Modules Features Specifications
Microphone Specifications Pickup distance Clear audio pickup up to 8 meters
Microphone Array Directivity Omnidirectional pickup pattern
Microphone Quantity 73
Sensitivity -8.38dBFS/Pa
Frequency response 75-20KHz
Signal-to-noise ratio ≥73dB
Distortion ≦0.1%
Hardware Specifications RJ45 Connect to a dedicated audio processor
Mounting interface for bracket lifting eyes M5 threaded hole
Other specifications Cable Requirements Category 5e or higher shielded twisted-pair cable
Power Supply Method RJ45(PoE)
Operating voltage DC12-48V
Dimensions (L x W x H) 595x595x43.8mm
Net weight 4420g
Color White

Environmental Factors
Operating temperature -10℃~50℃
Storage temperature -20℃~70℃
Operating humidity 10%~90%RH
Storage humidity 10%~90%RH