DESCRIPTION
The ReSpeaker 4-Mic Array for Raspberry Pi is a quad-microphone expansion board for Raspberry Pi, designed for use with AI and voice applications. This means that you can build a more powerful and flexible voice project that integrates Amazon Alexa, Google Assistant and more.
Different from ReSpeaker 2-Mics Pi HAT, this board is based on the AC108, a highly integrated quad-channel ADC with I2S/TDM output transition for high-definition voice capture. This 4-Mics version provides a super cool LED ring, which contains 12 APA102 programmable LEDs.
With the 4 microphones and the LED ring, the Raspberry Pi is able to do VAD(Voice Activity Detection), estimate DOA(Direction of Arrival) and show the direction via LED ring, just like an Amazon Echo or Google Home.
Please Note:
- Does not contain a Raspberry Pi.
- There are no audio output interfaces on the ReSpeaker 4-Mic Array. It is only used for voice capture. You can use the headphone jack on Raspberry Pi for audio output.
FEATURES
- Dimensions: 65mm x 65mm x 9mm
- LED: 12 APA102 programmable RGB LEDs, connected to SPI interface
- Raspberry Pi 40-Pin headers support Raspberry Pi Zero, Raspberry Pi 1 B+, Raspberry Pi 2 B and Raspberry Pi 3 B.
- 2 Grove interfaces
- Voice capture distance of up to 3 meters
- 4 Analog microphones
RESOURCES
- Wiki
- AC108_Datasheet_V1.1
Fast shipping and professional packing
Through our long-term relationship in a long-standing partnership with UPS, FedEx, DHL as well as a range of other top global carriers we can provide a variety of shipping options. Our warehouse staff are educated to pack your items exactly according to the specifications that we supply. Before shipping, all goods will be thoroughly examined and securely secured. Every day, we send thousands of packages to clients from all over the world. The fact that we're committed to becoming the biggest online retailer in the world is obvious. These warehouses are situated in Europe in the same way as they are in USA.
Orders with more than 1 item are assigned processing times according to each item.
Before shipping before shipping, we'll examine thoroughly the items you've purchased. Today, most orders will be shipped within 48 hours. The estimated delivery time is between 3 and 7 days.
Returns
Due to multiple entities, including the factory and the warehouse, we're unable to completely manage our stock. The actual stock can change at any moment. Be aware that it's possible for your order to be out of stock after you have made the order.
Our policy lasts for a period of 30 days. If 30 days have passed without a trace since the purchase however, we're unable to give you a refund or exchange.
Your item must be in its original packaging and in good condition. It must also not be used. The item should be in its original packaging.
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