Raspberry Pi ReSpeaker 4-Mic Array
ReSpeaker 4-Mic Array, this product has no audio output. It is a 4 microphone expansion board for Raspberry Pi designed for AI and audio applications. This is Amazon Alexa Voice Service, Google Assistant etc. It means you can create a more powerful and flexible audio product that integrates with.
Unlike the ReSpeaker 2-Mics Pi HAT, this board is developed based on the AC108, a highly integrated four-channel ADC with I2S / TDM output switching for high resolution audio capture. Also, this 4 Mics version provides a super cool LED ring containing 12 APA102 programmable LEDs. With these 4 microphones and LED rings, the Raspberry Pi will have the ability to do VAD (Sound Activity Detection) like Amazon Echo or Google Home, predict DOA (Direction of Arrival) and show direction through LED ring.
Raspberry Pi ReSpeaker 4-Mic Array - Technical Specifications
| Manufacturer | SeeedStudio |
| Product Category | Development Card |
| Product Dimensions | 65mm x65mm x9mm |
| Weight | 38g |
| Microphone | 4 Analog Microphones |
| Led | 12 APA102 programmable RGB LEDs connected to SPI interface |
| Grove | 2 Grove Interface |
| Audio Capture Distance | 3 meter radius sound capture |