
The PeopleLink DSP CM is a ceiling microphone system for conference rooms, classrooms and training rooms. It uses suspended spherical microphones with a 10-meter, 360-degree pickup radius and a built-in digital audio processor with AEC, ANS and intelligent remix, connecting over USB Type B. As one AV OEM, PeopleLink builds it to pair cleanly with PeopleLink cameras, control and room solutions.

Product Features
PeopleLink DSP CM is a microphone system that eliminates the need for cables cluttering your table, featuring 2 ceiling microphones. These devices excel in providing crystal-clear audio capture, suitable for settings ranging from corporate conference rooms to educational institutions, ensuring that every participant’s voice is heard with utmost clarity. The DSP-CM is integrated with a high signal-to-noise ratio, adaptive echo cancellation, adaptive noise suppression, and intelligent sound mixing functionality. The ceiling microphone is designed for discreet and easy ceiling mounting, catering to various meeting spaces.
Key Features:
- Built-in Digital Audio Processor
- B-type USB Connection
- Maximum Microphone Pick-up Radius of 10m
- Built-in AEC, ANS, Intelligent Remix

High-Performance Full-Coverage Pickup Microphones
DSP-CM Microphones are high-performance full-coverage pickup microphones for normalized recording and playback in classrooms and remote interactive scenarios. A single microphone covers a radius of 10 meters, and two microphones can cover a classroom or conference room with an area of over 120 square meters.

Ceiling Microphones for Any Meeting Space
The ceiling microphone is designed for easy ceiling mounting and suits diverse meeting spaces, including training rooms, classrooms, and demo rooms. Its discreet placement ensures effective audio coverage, making it an ideal solution for enhancing collaboration in professional environments.

Digital Array Microphone, Long-Distance Voice Pickup
The microphones adopt large-size and professional-grade acoustic transducers to capture a wide dynamic range and can pick up rich and full-bodied sound from up to a 10-meter radius. Lecturers or conference speakers can speak anywhere within 2-10 meters from the omnidirectional microphone without affecting the pickup effect.

Design and Installation
The design of ceiling microphones focuses on discretion and functionality. The unique enclosure design effectively suppresses large space reverberation, capturing clear, undistorted, and omnidirectional sound. Installation considerations involve strategic placement to optimize sound pickup while maintaining the aesthetic integrity of the space. The ceiling mic mount plays a crucial role in this, allowing for secure and optimal positioning.

Applications and Advantages
Ceiling microphones are versatile, suitable for use in multiple scenarios such as large conference halls or intimate meeting rooms. The advantage of PeopleLink microphones with ceiling installation is their wide coverage and the elimination of table clutter, common in traditional conferencing setups. Systems like DSP CM exemplify this advantage, offering both convenience and quality.

Simple to Integrate and Compatible with VC Applications
Integrating a ceiling mic into your existing audio-visual system requires careful consideration of compatibility. Products like DSP CM with hanging microphones from ceiling arrays are designed to work seamlessly with various AV interfaces and applications, ensuring that the system functions as a cohesive whole.

Superior Audio Reception
The DSP CM master receiver seamlessly connects to active speakers and two suspended ceiling microphones. It supports local amplification and local sound reinforcement, making it a versatile solution for large conferences and leisure venues.
How it Works

Accessories

DSP Master Receiver

Ceiling Microphones

Connection Cables

User Manual
Specifications
| Connectivity | : USB 2.0 : Type B |
| Microphone | : HD voice pickup range mics |
| Microphone Included | : Yes - Suspended Spherical Microphone |
| No Of Mics Supported | : 2 microphones |
| Frequency Response | : 20Hz~20kHz |
| Microphone Frequency | : 50 - 20000Hz |
| Voice Pickup Radius | : 360° Voice pickup |
| Audio Pickup range | : 10 meter |
| 3A Algorithm | : Built in AEC, AGC & ANS |
| Sensitivity | : -47 plus or minus 3dB. |
| SNR (Signal to noise ratio) | : 75dB |
| Output Connection and Cable | : Mini XLR-3 Male/ Twisted Shielded MIC Cable |
| Speaker Support | : Active Speaker |
| Interface | : USB Type B, Phoenix 2-way 3.81 mm |
| Operating System | : Windows 7, Windows 10, Windows XP, Mac OS |
| Ideal Room Size | : 80-100 Square Meters |
| Application | : Conference room, Classrooms, Training Rooms |
| Seating Capacity | : 15 to 30 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 | ✗ | 32kHz |
| Rated Output Impedance | ✗ | ✗ | 2.2kΩ |
| Minimum Load Impedance | ✗ | ✗ | 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
Conference rooms
Suspended ceiling mics keep tables clear of cables.
Classrooms
10-meter, 360-degree pickup covers large rooms with two mics.
Training rooms
Built-in DSP with AEC and ANS keeps voices clear.
How It Compares
| Capability | Peoplelink DSP-CM | Typical Alternative |
|---|---|---|
| Placement | Ceiling-mounted, table stays clear | Table-top microphone |
| Pickup radius | 10-meter, 360-degree | Limited short-range pickup |
| Processing | Built-in AEC, AGC and ANS | No on-board processing |
| Coverage | Two mics for up to 80-100 sq m | Single fixed mic |
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 DSP CM?
The PeopleLink DSP CM is a ceiling microphone system from PeopleLink with a built-in digital audio processor and suspended spherical microphones, designed for clear audio capture in conference rooms and classrooms.
How much area does it cover?
Each microphone offers a 10-meter, 360-degree pickup radius, and the system supports two microphones for rooms of roughly 80-100 square meters.
How does it connect?
The PeopleLink DSP CM connects over USB 2.0 Type B and a Phoenix interface, with built-in AEC, ANS and intelligent remix for clear audio.


