The PeopleLink CM Alpha is an array microphone built for meeting and conference rooms. It is designed for clear, hands-free voice pickup across the room. It connects over standard interfaces and works with common video conferencing platforms, and because PeopleLink is one OEM it pairs cleanly with PeopleLink cameras, audio, control and room solutions. The summary specifications below are drawn from the official datasheet, and the full PDF is available on request.
PeopleLink CM Alpha
PeopleLink CM Alpha is an 8-meter distance voice pickup microphone. One is enough and ideal for a standard classroom or a large conference room, and it is easy to install on the desk, ceiling or the wall. Debug-free design, plug and play. With adaptive blind beamforming technology, automatic speaker alignment, and speech reinforcement to prevent interference and keep speech clear. It adopts the technology of hot laminating and wrapping cloth to change the appearance, color, and pattern more conveniently. It adapts to all classroom decoration styles with natural visual effects and realizes the Invisible application. It uses a standard USB 2.0 and 3.5 mm audio interface, a debug-free design, and plug-and-play. It has a simple system and compact appearance and is easy to install and maintain.
Key Features:
- Built-in 7 microphone arrays
- 8 meter Audio Pickup Range
- Intelligent Voice Tracking
- Built-in AEC, AGC, ANS
- Hands-free lecture and presentation
Hands-Free Solution for Speaker
PeopleLink CM Alpha sound system for conference rooms, classrooms, and places of worship. The microphone is hands-free and can be mounted on the ceiling, wall, or tabletop. Freely walk around with this zero-configuration ceiling microphone solution that provides seamless communication without requiring handheld devices.
Digital Microphone for Recording and Online Interaction
PeopleLink CM Alpha is a digital array microphone with embedded architecture, beam formation, professional digital audio processing, and an 8-meter long-distance pickup. It has the stability to achieve automatic voice tracking and entire duplex interaction.
360° Audio Pickup Range
PeopleLink CM Alpha has a 360-degree omni directional sound pickup and no dead-angle sound collection. The Sound pickup covers an area of 80 square meters. Dual mode (digital, analog) output is supported.
Multiple Audio Algorithms, High Quality of Sound
Using patent technologies including Intelligent noise reduction, echo cancellation, and reverberation suppression to ensure clear sound quality and comfortable communication. Requirements for the building of the classroom decoration are low. Supports full duplex.
Intelligent Voice Tracking for Anti-Interference
Adaptive blind beam-forming technology, accurate positioning, automatic alignment to the speaker, and clear and natural speech. The intelligent voice tracking records only the speaker and focuses on them primarily without getting interfered with by background noises.
Small and Exquisite Design
Product appearance is small and exquisite, with 32kHz broadband sampling, built-in automatic noise reduction, echo cancellation, automatic gain, and other intelligent audio algorithms to eliminate noise, reverberation suppression, and echo interference, low requirements for building a sound environment.
Simplify Installation - Plug and Play
Standard USB 2.0 and 3.5mm audio interface, plug and play without extra configuration, simple system, small size, easy to install and maintain. That means no more hassles when it comes to connectivity and installation.
Changeable Appearance - Invisible Application
The CM Alpha adopts the technology of hot laminating and wrapping cloth to change the appearance, color, and pattern more conveniently. It adapts to all classroom decoration styles with natural visual effects and realizes the Invisible application.
How it Works
Accessories
Mounting Kit
AUX Cable
USB Cable
User Manual
Specifications
| Connectivity | : USB 2.0 : Type B |
| Microphone | : Built-in 7 microphone arrays |
| Microphone Included | : Built-in microphone |
| No Of Mics Supported | : Built-in microphone |
| Frequency Response | : 20Hz - 16kHz |
| Microphone Frequency | : 20Hz - 16kHz |
| Voice Pickup Radius | : 360° Voice pickup |
| Audio Pickup range | : 8 meters |
| 3A Algorithm | : Built in AEC, AGC & ANS |
| Sensitivity | : -26 dBFS |
| Sampling Rate | : 32K sampling |
| SNR (Signal to noise ratio) | : 64 dB(A) |
| Output Connection and Cable | : USB |
| Speaker Support | : Active Speaker |
| Interface | : USB2.0, 3.5mm Line in/Out |
| Operating System | : Windows 7 / Windows 10 /MacOS |
| Ideal Room Size | : 80-100 Square Meters |
| Application | : Conference room, board room |
| Seating Capacity | : 10 to 15 seater |
FIND THE PRODUCTS THAT ARE RIGHT FOR YOU
| Product |  CM Alpha |  DSP CM |  Pro Audio DSP - 12 Channel |
| Connectivity | USB 2.0 : Type B | USB 2.0 : Type B | USB 2.0 : Type A |
| Microphone | Built-in 7 microphone arrays | HD voice pickup range mics | HD voice pickup range mics |
| Microphone Included | Built-in microphone | Yes - Suspended Spherical Microphone | Yes - Suspended Spherical Microphone |
| No Of Mics Supported | Built-in microphone | 2 microphones | 8 microphones |
| Frequency Response | 20Hz - 16kHz | 20Hz~20kHz | ( 20Hz~20kHz @ +4dBu |
| Microphone Frequency | 20Hz - 16kHz | 50 - 20000Hz | 50Hz-20kHz |
| Voice Pickup Radius | 360° Voice pickup | 360° Voice pickup | 360° Voice pickup |
| Audio Pickup range | 8 meters | 10 meter | 8 meters |
| 3A Algorithm | Built in AEC, AGC & ANS | Built in AEC, AGC & ANS | Built in AEC, AGC & ANS |
| Sensitivity | -26 dBFS | -47 plus or minus 3dB. | -44±3dB(0dB=1V/Pa@1kHz) |
| Sampling Rate | 32K sampling | No | 32kHz |
| Rated Output Impedance | No | No | 2.2kΩ |
| Minimum Load Impedance | No | No | 1kΩ |
| SNR ( Signal to noise ratio) | 64 dB(A) | 75dB | 75dB |
| Output Connection and Cable | USB | Mini XLR-3 Male/ Twisted Shielded MIC Cable | Mini XLR-3 Male/ Twisted Shielded MIC Cable |
| Speaker Support | Active Speaker | Active Speaker | Yes |
| Interface | USB2.0, 3.5mm Line in/Out | USB Type B, Phoenix 2-way 3.81 mm | USB 2.0, RJ45, RS232, Line In/Out, Mic In, WL-IN, 3.5mm, Phoenix |
| Operating System | Windows 7 / Windows 10 /MacOS | Windows 7, Windows 10, Windows XP, Mac OS | Windows 7, Windows 10, Windows XP, Mac OS |
| Ideal Room Size | 80-100 Square Meters | 80-100 Square Meters | 100- 120 Square Meters |
| Application | Conference room, board room | Conference room, Classrooms, Training Rooms | Conference room, Classroom, Auditorium |
| Seating Capacity | 10 to 15 seater | 15 to 30 seater | 50 to 100 seater |
Disclaimer: Features and specifications are subject to change without prior notification. Images shown are for representational purposes only; actual may vary.
Videos
Downloads
Where It Fits
Meeting rooms
8m 360° pickup covers every seat from a single device.
Conference rooms
AI noise reduction keeps voices clear in larger spaces.
Video conferencing
USB UAC connection works with common video conferencing platforms.
How It Compares
| Capability | PeopleLink CM Alpha | Typical Alternative |
|---|---|---|
| Pickup | 8m, 360° omnidirectional | A single tabletop mic |
| Array | 7-mic ring array | One capsule |
| Processing | AEC, ANS, AGC | No processing |
| Connectivity | USB UAC plug and play | USB only typical |
Why PeopleLink
Hardware + software
Cameras, audio, control and collaboration platforms, built by one OEM.
Integrates cleanly
PeopleLink audio devices pair with PeopleLink cameras, control and room solutions out of the box.
Deployed globally
Trusted across enterprise, government, education and healthcare environments.
Specialist support
Talk to PeopleLink AV specialists for sizing, integration and rollout.
Frequently Asked Questions
What is the PeopleLink CM Alpha?
The PeopleLink CM Alpha is an array microphone from PeopleLink, designed for clear, hands-free voice pickup across the room. It works with common video conferencing platforms.
How does it connect?
The PeopleLink CM Alpha connects over a USB audio interface (Type-B) supporting the UAC1.0 protocol, and works with common video conferencing platforms.
Does it work with PeopleLink room solutions?
Yes. As one OEM, PeopleLink supplies the array microphone alongside cameras, audio, control and room solutions, so the room works together.