ReSpeaker 4-Mic Array for Raspberry Pi is a quad-microphone expansion board for Raspberry Pi designed for AI and voice applications.
This means that you can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.
Different from ReSpeaker 2-Mics Pi HAT, this board is developed based on AC108, a highly integrated quad-channel ADC with I2S/TDM output transition for high definition voice capture. Besides, this 4-Mics version provides a super cool LED ring, which contains 12 APA102 programmable LEDs. With that 4 microphones and the LED ring, Raspberry Pi would have ability to do VAD(Voice Activity Detection), estimate DOA(Direction of Arrival) and show the direction via LED ring, just like Amazon Echo or Google Home.
Note
Please note that the package does not contain Raspberry Pi.
Features
Raspberry Pi compatible(Support Raspberry Pi Zero and Zero W, Raspberry Pi B+, Raspberry Pi 2 B and Raspberry Pi 3 B)
4 Microphones
3 meters radius voice capture
2 Grove Interfaces
12 APA102 User LEDs
Software Algorithm: VAD(Voice Activity Detection), DOA(Direction of Arrival) and KWS(Keyword Search)
Note
Please note that the package does not contain Raspberry Pi.
Please 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.
Here is a video from Parvinder Yadav, it teaches how to use ReSpeaker 4-Mic Array for Raspberry Pi to make google assistant. We really appreciate Parvinder's contribution to the community and hope this video can be a good help for you.
Technical Details
| Dimensions | 65mm x 65mm x 9mm |
| Weight | G.W 38g |
| Battery | Exclude |
| MIC | 4 analog microphones |
| LED | 12 APA102 programable 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 |
| AC108 | highly integrated quad-channel ADC with I2S/TDM output transition |
| Software Algorithm | VAD(Voice Activity Detection), DOA(Direction of Arrival) and KWS(Keyword Search) |
| Grove | 2 Grove Interfaces |
| Voice Capture Distance | 3 meters radius voice capture |
- Reviews
- Questions
AustraliaPakronics were great, but wont buy seeed product again
Pakronics were great, product shipped next business day with no issue. Australia Post held up delivery 36 hours. Seeed appear to have stopped support ... no presence on their forum or updates to their drivers since mid 2019. Advice is to use OS from 2018
Pakronics®
Thank you for taking time writing your feedback. Can you send us details of technical issue you are facing then we can get seeed engineer clarify. There is no update on driver but it is still being manufacturer so it should have support you need and should function as it suppose to. We will get that sort asap. Please include details of issue and code you are using. Cheers
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