miniDSP Ltd, Hong Kong /
/ Features and specifications subject to change without prior notice
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VERVIEW
Thank you for purchasing a miniDSP UMA-8-SP USB microphone array. 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!
The UMA-8-SP is a fully compliant UAC2 audio interface with driverless support for Mac/Linux and ASIO drivers
for Windows. Depending on the loaded firmware, the UMA-8-SP has different modes of operation.
DSP mode
: the interface is running as a 2xIN (2ch Beamforming), Mono audio output on stereo audio amplifier.
Note that the embedded XMOS library can only output mono signal. Both outputs of the onboard amplifier will
therefore carry the same mono signal.
RAW audio mode
: the unit is streaming all raw audio from the MEMS (7 x MEMS + 1 x spare PDM input), 2 x
OUTPUTS on digital audio amplifier. Note that in RAW mode, no processing is enabled and signal may be small
as it’s the RAW audio from the MEMS microphones. You may need to perform a bit shift to increase the
sensitivity of your signal.
The below sections will hopefully clarify how to install and configure the UMA-8-SP. If any doubt/questions, feel
free to contact our technical support team.
