miniDSP UMA-8 Multichannel USB Microphone

Circular USB microphone array, DSP processing for Beamforming, AEC, Noise reduction, 2ch and 8ch mode, Live GUI control of advanced parameters.

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Highlights:

• 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-Pi, Cortana, Siri and IBM Watson. More coming up soon...

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Product details:

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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
• 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

What's included 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.