Circular USB microphone array, DSP processing for Beamforming, AEC, Noise reduction, 2ch and 8ch mode, Live GUI control of advanced parameters.
Highlights
Product Details
miniDSP UMA-8 Multichannel USB Microphone
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
Documents
What's in the box?
Mechanical Specifications
PRODUCT SPECIFICATIONS
Item | Description |
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 |
LED | 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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