Linear 4-Mic Array Module
M40 4-Microphone Array Far-Field USB Voice Pickup Module
Featuring a linear equidistant 4-mic array and onboard hardware DSP (AEC, AGC & Beamforming), M40 delivers natural 6–10m far-field voice pickup via USB plug-and-play for smart displays, terminals, and video conferencing systems.
4 MIC
Linear equidistant array
6–10 M
Far-field voice pickup range
360°
Omnidirectional coverage
Type-C
Plug-and-play USB Audio Class
M40 / CORE PLATFORM
Clear speech, from every seat.
M40 combines four evenly spaced microphones with a dedicated array algorithm. The result is natural, intelligible voice pickup for compact conference and display systems.
SIX FUNCTIONAL FEATURES
Designed for conversations that stay focused.
Auto echo cancellation
Reduces far-end speaker feedback for smoother, more comfortable calls.
Automatic gain control
Balances speech level as the speaker moves within the pickup area.
360° voice pickup
An omnidirectional array captures participants around the table.
6–10 m pickup
Supports far-field capture for meeting rooms and large displays.
Noise suppression
Filters steady-state room noise while preserving the speech signal.
Voice enhancement
Maintains a clear, intelligible voice character across the room.
360° OMNIDIRECTIONAL PICKUP
One room. One consistent voice field.
Four array microphones and 360° pickup help remote participants hear the same natural conversation, wherever they sit.
4
Array microphones
360°
Omnidirectional
6–10 m
Far-field pickup
Noise control that keeps words intelligible.
Automatic gain, steady volume.
Within a range of 10 metres, the volume adjusts to the speaker distance and voice level, helping conversations remain clear without constant manual tuning.
Automatic echo cancellation (AEC)
By removing sound played by the speaker, M40 helps keep two-way communication smooth and comfortable.
APPLICATION / VIDEO CONFERENCING
Built for the way teams meet now.
Pair the M40 with a display, camera or Android terminal to extend natural voice pickup across meeting rooms, classrooms and distributed workspaces.
- Conference and huddle rooms
- Large-screen display terminals
- Android video collaboration devices
- Embedded OEM microphone systems
COMPACT INDUSTRIAL DESIGN
A discreet bar for modern hardware.
The slim 120 × 33 × 13 mm enclosure fits neatly under a display or inside an OEM housing, while the rear view keeps service access straightforward.
Front, side and rear views are included in the source material for mechanical integration review.
MECHANICAL REFERENCE
Ready for the next design review.
Use the supplied mechanical drawing as the dimensional reference for mounting, enclosure clearance and USB connector access.
PRODUCT SPECIFICATIONS
A compact audio front end, specified for integration.
The values below are transcribed from the supplied M40 product specification sheet. Confirm final tolerances and interface details against your production sample.
| Microphone type | Linear equidistant array microphone |
|---|---|
| Number of digital microphones | 4 array microphones |
| Farthest pickup distance | 6–10 m |
| Audio capture rate | 16 kHz / 48 kHz @ 16 bit |
| Sensitivity | -30 dB FS |
| SNR | 64 dBA |
| AOP | 120 dB SPL |
| Directivity | 360° pickup |
| Supported functions | Acoustic Echo Cancellation (AEC), Voice Enhancement, Beamforming, Noise Suppression (NS), Automatic Gain Control (AGC) |
| Connector interface | 1 × USB 5-pin, 1.25 mm (GH) |
| USB power supply voltage | 5 V ±5% |
| Power consumption | Regular work: 1 W @ 5 V, 160 mA (max) |
| Size | 120 mm (L) × 33 mm (W) × 13 mm (H) |
Bring far-field audio into your next device.
Tell us about your room, terminal or enclosure. Our team can help you evaluate the M40 module for your integration.