{"product_id":"respeaker-4-mic-array-for-raspberry-pi","title":"ReSpeaker 4-Mic Array for Raspberry Pi","description":"\u003cp\u003eReSpeaker 4-Mic Array for Raspberry Pi is a quad-microphone expansion board for Raspberry Pi designed for AI and voice applications. Build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.\u003c\/p\u003e\n\u003cp\u003eIn contrast to the \u003ca href=\"\/en-eu\/products\/respeaker-2-mics-phat\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eReSpeaker 2-Mics Pi HAT\u003c\/a\u003e, this board is developed based on AC108, a highly integrated quad-channel ADC with I2S\/TDM output transition for high definition voice capture. In addition, this 4-Mics version provides a super cool LED ring, which contains 12 APA102 programmable LEDs. With 4 microphones and the LED ring, the Raspberry Pi has the ability to do VAD (Voice Activity Detection), estimate DOA (Direction of Arrival) and show the direction via the LED ring, just like Amazon Echo or Google Home.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlease note that the package does not contain Raspberry Pi.\u003c\/li\u003e\n\u003cli\u003ePlease note that there are no any audio output interfaces on ReSpeaker 4-Mic Array for Raspberry Pi. It is only for voice capture. And you could use the headphone jack on Raspberry Pi for audio output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e65mm x 65mm x 9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eG.W 20g    \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMIC\u003c\/td\u003e\n\u003ctd\u003e4 analog microphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED\u003c\/td\u003e\n\u003ctd\u003e12 APA102 programable RGB LEDs, connected to SPI interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRaspberry Pi 40-Pin Headers\u003c\/td\u003e\n\u003ctd\u003esupport Raspberry Pi Zero, Raspberry Pi 1 B+, Raspberry Pi 2 B and Raspberry Pi 3 B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC108\u003c\/td\u003e\n\u003ctd\u003ehighly integrated quad-channel ADC with I2S\/TDM output transition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware Algorithm\u003c\/td\u003e\n\u003ctd\u003eVAD(Voice Activity Detection), DOA(Direction of Arrival) and KWS(Keyword Search)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrove\u003c\/td\u003e\n\u003ctd\u003e2 Grove Interfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Capture Distance\u003c\/td\u003e\n\u003ctd\u003e3 meters radius voice capture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/SeeedDocument\/ReSpeaker-4-Mic-Array-for-Raspberry-Pi\/raw\/master\/src\/ReSpeaker%204-Mic%20Array%20for%20Raspberry%20Pi%20%20v1.0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eReSpeaker 4-Mic Array for Raspberry Pi v1.0.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.seeed.cc\/discover.html?t=respeaker\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSeeed's forum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/SeeedDocument\/Bazzar_Attachment\/raw\/master\/103030216\/AC108_Datasheet_V1.1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAC108_Datasheet_V1.1\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLearn\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/wiki.seeed.cc\/ReSpeaker_4_Mic_Array_for_Raspberry_Pi\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e[Wiki] ReSpeaker 4-Mic Array for Raspberry Pi \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":49984944138,"sku":"SEEED-103030216","price":22.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/bazaar549331_3642.jpg?v=1539263368","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/respeaker-4-mic-array-for-raspberry-pi","provider":"Pimoroni Ltd","version":"1.0","type":"link"}