SKM1600
The 1600 Series
Dipole + Omnidirectional Microphone Module
Soundskrit’s SKM16X0 is the world’s first microphone module incorporating a directional microphone with a traditional omnidirectional microphone. By combining the signals of a dipole with an omnidirectional microphone users can easily create any directional beam pattern. The SKM16X0 is predesigned to integrate all required acoustic channels to bring all sound ports to a single surface so that customers can easily drop-in the module into end products.
Specifications
Type | Analog |
|---|---|
Dipole Mic | 65 dBA SNR |
Omnidirectional Mic | 68 dBA SNR |
Directionality | Selectable through software |
Sound ports | Three ports on same surface |
Current Consumption | 235 µA |
Package | 16.40 x 8.10 x 7.00 mm3 |
Product Benefits
Integrated directional and omnidirectional microphone to enable advanced software processing | |
|---|---|
Flexible beam patterns | |
Integrated acoustic channels, pretested for sealing
| |
Integrated mesh for IP57 protection | |
Applications
Conferencing Devices | Security Cameras |
|---|---|
Headsets | Smart Home Devices |
Webcams | Voice Badges |
Intercoms & Doorbells |
Our Unique Module Design
Optimized Acoustic Channels
All of the acoustic channels required for placing a directional microphone into an end product are pre-built inside the gasket and optimized for performance.
Plug-and-Play
The SKM1600 easily drops into any product to get directional microphones up and running with minimal effort.
Flexible Beam Patterns
By combining the omnidirectional and dipole microphone signals, any standard microphone beam patterns can be easily created.
Full Bandwidth Signals
The SKM1600 is ideal for creating beamformers that are consistent across the full audible spectrum.
Scarab Evaluation Kit
The Scarab Evaluation kit evaluates Soundskrit microphones and their potential when combined with omnidirectional microphones using beamforming. This kit demonstrates how different polar patterns and algorithms can enhance directionality and reduce background noise.
An omnidirectional microphone can be combined with a dipole microphone to create any standard directional beam pattern, such as a cardioid. This gives users maximum flexibility since different beam patterns have more noise rejection in different directions. To learn more about combining directional and omnidirectional microphones, check out this article.
The SKM1600 provides an analog output based on our SKR0600 microphone, and the SKM1610 provides a PDM digital output based on our SKR0610 microphone.
Yes. There are no algorithms built inside the module itself. The modules just output the raw microphone signals. Software is needed to combine the omnidirectional and dipole microphone signals to create a desired beamformer. This software typically runs embedded inside the end product’s DSP or SoC. To learn more, check out our software page.
Each application has different needs. A dipole brings the most rejection on the sides, while cardioids favor noise rejection in the back. Check out these demo videos to learn more!
The SKM16X0 modules come with a blue pull-tab that exposes an adhesive (VHB tape). This adhesive can be used to stick the module onto your end product’s enclosure. You simply just have to cut out holes in your enclosure for the 3 sound ports.
Recommended connector: Amphenol HFW4R-1STE1H1LF
Pinout of SKM1600 (analog)
Pinout of SKM1610 (PDM). The rising edge on the data line is the dipole microphone, the falling edge the omnidirectional microphone.
Application Notes
Creating Different Polar Patterns in Beamforming
AN-220 examines how omnidirectional and dipole microphones can be combined using beamforming to create variable polar patterns.
Creating a High SNR Beamformer
AN-240 describes how to combine an omnidirectional and dipole microphone to create beamformers such as a hypercardioid with > 70 dB SNR.
Attributes of Directional MEMS Microphones
AN-110 walks through key attributes of Soundskrit’s directional microphones such as directionality, SNR, acoustic path length, and more.
Get in Touch With Us
Soundskrit challenges the old way of doing things with our proprietary hardware and software.