Microfon de masura miniDSP UMA-8

Circular USB microphone array, DSP processing for Beamforming, AEC, Noise reduction, 2ch and 8ch mode, Live GUI control of advanced parameters. HighlightsMultichannel USB microphone array for voice commandOn-board DSP for beamforming/ noise reduction / echo cancellation / de-reverb / Direction of Arrival (DOA) / Voice Activity Detection (VAD)Ring with 11 LED RGBHigh quality MEMS from Knowles SPH1668LM4HSimple USB control API for Direction of ArrivalFlexible 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... Product DetailsminiDSP UMA-8 Multichannel USB MicrophoneThe 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 plugplay 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... Its all there to grow with your application! System Diagram DocumentsUMA-8 Product datasheetUMA-8 User manual What's in the box?1 x UMA-8 USB microphone array interface1 x 1.5m USB type B cable Mechanical SpecificationsPRODUCT SPECIFICATIONSItemDescriptionUSB streaming engineXMOS XSVM 2000 - Multicore USB audio processor with embedded DSPUSB 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 enabledUSB 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 formingUAC2.0 driversDriverless interface for Mac OS X v10.6.4 and upThesycon Windows ASIO driver (All versions)Linux Alsa 2.0 compliantControl via HID interface for advanced settings and active microphoneResolution / Sample rate24bit @ 11/16/32/44.1/48 kHzI2S portOutput 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 patternLED12 x RGB LED / Bottom mounted - Circular light guide includedExpansion connector 2 x 12-pin, 2 mm pitch expansion connector for connectivity to hardware.XMOS JTAG connector for custom code.Power supplyUSB poweredDimensions (diameter) mm90 mm diameter / 20mm height with LED ring, 14mm height without LED ring