miniDSP UMA-8 Multichannel USB Microphone

€ 148,72€ 179,95 6 Auf Lager: Lieferzeit 1-3 Werktage
Circular USB microphone array, DSP processing for Beamforming, AEC, Noise reduction, 2ch and 8ch mode, Live GUI control of advanced parameters.... Mehr anzeigen
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Circular USB microphone array, DSP processing for Beamforming, AEC, Noise reduction, 2ch and 8ch mode, Live GUI control of advanced parameters.



  • Multichannel USB microphone array for voice command
  • On-board DSP for beamforming/ noise reduction / echo cancellation / de-reverb / Direction of Arrival (DOA) / Voice Activity Detection (VAD)
  • Ring with 11 LED RGB
  • High quality MEMS from Knowles SPH1668LM4H
  • Simple USB control API for Direction of Arrival
  • Flexible Firmware (DSP mode @2ch beamformed, RAW mode @8ch audio from MEMS)
  • Step by step app notes for Alexa-PiCortanaSiri and IBM Watson. More coming up soon...


Product details

miniDSP UMA-8 Multichannel USB Microphone

Note: This product comes with a coupon (€9,50) for one free miniDSP plugin download.

The UMA-8 is a high-performance yet low cost multichannel USB microphone array built around XMOS multicore technology. 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 on-board DSP processing, the UMA-8 supports voice algorithms including beamforming, noise reduction, acoustic echo cancellation and de-reverb. Non-technical users can enjoy a plug&play experience, while advanced users can fine-tune all DSP parameters with a real-time Win/Mac GUI for optimum performance. 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!


System Diagram




What's in the box?

  • 1 x UMA-8 USB microphone array interface
  • 1 x 1.5m USB type B cable
  • 1 x Coupon code for drivers/firmware/GUI. 


Mechanical Specifications






USB streaming engine 


XMOS XSVM 2000 - Multicore USB audio processor with embedded DSP

USB audio capabilities  






USB audio recording in 2 possible modes depending on firmware:

- 8-channel mode (7 x MEMS installed + 1 x spare PDM port in the center)

- Stereo recording with DSP processing enabled

USB audio playback: Stereo I2S channel for I2S out (e.g. external amplifier/DAC board.)

DSP processing (prebuilt firmware)






· Beamforming with configurable beam width (up to 20dB attenuation)

· Perceptual acoustic echo cancellation (up to 80dB attenuation)

· Noise suppression (up to 20dB attenuation)

· De-reverb ( up to 20dB attenuation)

· Manual mode for control of beam forming

UAC2.0 drivers





Driverless interface for Mac OS X v10.6.4 and up

Thesycon Windows ASIO driver (All versions)

Linux Alsa 2.0 compliant

Control via HID interface for advanced settings and active microphone

Resolution / Sample rate

24bit @ 11/16/32/44.1/48 kHz

I2S port

Output port for PDM to I2S conversion (upcoming firmware update required)

MEMS microphones






7 x Knowles SPH1668LM4H with low noise buffer and high performance modulator

· Low distortion: 1.6% @ 120 dB SPL

· High SNR: 65 dB and flat frequency response

· RF shielded against mobile interference

· Ominidirectional pick-up pattern


12 x RGB LED / Bottom mounted - Circular light guide included

Expansion connector


2 x 12-pin, 2 mm pitch expansion connector for connectivity to hardware.

XMOS JTAG connector for custom code.

Power supply

USB powered

Dimensions (diameter) mm

90 mm diameter / 20mm height with LED ring, 14mm height without LED ring






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UMA-8 Multichannel USB Microphone
€ 148,72
€ 179,95
UMA-8 Multichannel USB Microphone
6 Auf Lager: Lieferzeit 1-3 Werktage
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