The UMA-16 is a high-performance yet low cost 16 channel USB microphone array with plug&play USB audio connectivity. With its onboard SHARC+XMOS controller board, the UMA-16 is the perfect fit for development of beamforming algorithms or DIY acoustic camera. Its system architecture consists of two core elements: - The microphone array PCB has 16 x SPH1668LM4H MEMS Knowles laid out in a Uniform Rectangular Array (URA). A center hole fits an optional USB camera for applications such as an acoustic camera. Being a simple 2layer PCN, one can easily customize his own array layout by following our schematics. - At the helm of the UMA-16 operation is the nanoSharc kit. A 400MHz SHARC ADSP21489 + 500MHz multicore CPU providing substantial processing power for high SNR PDM to PCM conversion and multichannel low latency USB audio.The UMA-16 can also be used as a low cost USB to PDM mems board to acquire and convert audio for 3rd party MEMS.  With the UMA-16, miniDSP makes high channel count microphone array processing very affordable and hopes to further technological advances for beamforming technology. Features Multichannel USB microphone array for voice command 16 channels of RAW audio for development of custom beamforming algorithms High quality MEMS from Knowles SPH1668LM4H USB to PDM conversion for up to 16 x PDM MEMS microphones Center Hole for USB camera (Not provided) Sample Matlab code to get started   Specification Item Description Digital Signal Processor 32-bit Floating point Analog Devices SHARC ADSP21489 / 400 MHz - Configuration locked USB audio input XMOS Xcore200 asynchronous USB audio up to 192 kHz, USB Audio Class 2 compliant ASIO drivers for Windows Driverless for Mac OS X PDM inputs Up to 16 x MEMS microphone connections (8 x stereo PDM data lines) MEMS microphone 16 x SPH1668LM4H - Acoustic Overload @ 120dBSPL / High SNR of 65dB / RF shielded ADC/DAC Sample rate & Resolution Resolution: 24 bit Sample rate:  14.7k/11.025k/12k/16k/22.05k/44.1k/48k USB port USB port type Mini-B for audio streaming and firmware upgrade Power supply 12 VDC single supply / Header input / 2.5W Dimensions (H  x W x D) mm 132 x 195 x 25 mm Mounting 4 x M3 holders for front panel mounting /  CAD drawings available on demand What's in the box? 1 x UMA-16 USB microphone array interface 1 x 1.5m USB miniUSB cable 1 x 12V power supply with EU/UK/US plugs  Access to the UserDownloads section for ASIO drivers/Firmware updates once the product purchased.  Applications Make sure to check out our Microphone array application notes for more details.   

The UMA-8 microphone array has a new home! Introducing the UMA-8 box, an aluminum enclosure with a plastic circular light-guide and metal screening. A plastic ring at the bottom allows for a stronger fit. Installation is simple with a simple screwdriver. Note that this enclosure is only compatible with the UMA-8 and not with the UMA8-SP.  WARNING: This product page is only for the enclosure. If you'd like to order the UMA-8 microphone array, please go to the UMA-8 product page.   Here are drawings for your information. 

The UMA-8 v2 is a high-performance yet low cost multichannel USB microphone array built around XMOS Vocal fusion series (XVF3000) with improved adaptive beamformer, full duplex AEC and barge-in, noise suppression, AGC. Seven high-performance MEMS microphones are configured in a circular arrangement to provide high-quality voice capture for a wide range of applications. Leveraging the onboard DSP processing, the UMA-8 supports voice algorithms including beamforming, noise reduction, acoustic echo cancellation and de-reverb. The UMA-8 is a fully compliant UAC2 audio interface with driverless support for Mac/Linux and ASIO drivers for Windows. From DIYers to OEM, this pocket-size platform is engineered for flexibility in firmware, software and hardware. Precompiled firmware versions, expansion connectors providing connectivity for additional PDM microphones, I2S in/out expansion and GPIO... It’s all there to grow with your application! Features Multichannel USB microphone array for voice command Onboard DSP for beamforming/ noise reduction / echo cancellation / de-reverd / Direction of Arrival (DOA) / Voice Activaty Dectection (VAD) 11 x RGB LED in ring configuration High quality MEMS from Knowles SPH1668LM4H Flexible Firmware (DSP mode @2ch beamformed, RAW mode @8ch audio from MEMS) Step by step app notes for Google SDK, Alexa-Pi, Cortana, Siri, IBM Watson and Matlab. More coming up soon... External enclosure is available here. What's in the box? 1 x UMA-8 USB microphone array interface Access to the UserDownloads section for drivers/firmware/GUI.  1 x 1.5m USB type B cable     UMA-8 + RPi + nanoAVR for voice control of your AV system

The UMA-8-SP is a high-performance USB microphone array paired with a digital audio amplifier. Seven high-performance MEMS microphones are configured in a circular arrangement to provide high-quality voice capture in farfield microphone applications such as AI assistants, conferencing, robotics… Leveraging the onboard DSP processing from XMOS XVSM3000, the UMA-8-SP supports voice algorithms including beamforming, noise reduction, acoustic echo cancellation and de-reverb. The UMA-8-SP is a fully compliant UAC2 audio interface with driverless support for Mac/Linux and ASIO drivers for Windows. An onboard 2x15Wrms digital amplifier provides an all-in-one microphone array + amplifier integration. The perfect fit to build your own AI assistant or conferencing unit. From DIYers to OEM, this pocket-size platform is engineered for flexibility in firmware, software and hardware. Feel free to contact miniDSP on how we can help kickstart your new project!  Features Multichannel USB microphone array for voice command powered by XMOS XVSM3000 Digital Audio Amplifier (2x15Wrms) Onboard DSP for beamforming/ noise reduction / echo cancellation / de-reverb / Direction of Arrival (DOA) / Voice Activity Dectection (VAD) Ring with 11 LED RGB High quality MEMS from Knowles SPH1668LM4H Flexible Firmware (DSP mode @2ch beamformed, RAW mode @8ch audio from MEMS) Step by step app notes for Google SDK, Alexa-Pi, Cortana, Siri, IBM Watson and Matlab. More coming up soon...   What's in the box? 1 x UMA-8-SP USB microphone array interface Access to the drivers/firmware under the UserDownloads section once the product purchased 1 x 1.5m USB type B cable Options External 12V 3.5A Power supply   UMA-8 + RPi + nanoAVR for voice control of your AV system