ReSpeaker 4-Mic Array for Raspberry Pi is a 4-Microphone Expansion Board for Raspberry Pi designed for AI and voice applications. This means you can develop a more powerful and flexible language product that integrates Amazon Alexa Voice Service, Goo…
Technical data
| Height | 9 mm | |
|---|---|---|
| Length | 65 mm | |
| Width | 65 mm | |
| Packaging type | Bulk |
|
| Compatible with | Raspberry Pi | |
| Product type | Starter set |
- MIC 4 analogueue microphones
- LED 12 APA102 programmable RGB LEDs, connected to SPI interface
- Raspberry Pi 40-pin headers support Raspberry Pi Zerol, Raspberry Pi 1 B+, Pi 2 B, Pi 3 B, Pi 3 B, Pi 3 B+
- AC108 highly integrated 4-channel ADC with I2S/TDM output transition
- Software algorithm VAD (Voice Activity Detection), DOA (Direction of Arrival) and KWS (Keyword Search)
- 2 Grove interfaces
- Voice recording distance: 3 meters radius.
Speaker for Raspberry Pi
ReSpeaker 4-Mic Array for Raspberry Pi is a 4-Microphone Expansion Board for Raspberry Pi designed for AI and voice applications. This means you can develop a more powerful and flexible language product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.
Unlike the ReSpeaker 2-Mics Pi, this board was developed on the basis of AC108, a highly integrated four-channel ADC with I2S/TDM output transition for high-resolution voice recordings. In addition, this 4-microphone version offers a super cool LED ring, which contains 12 programmable APA102 LEDs. With these 4 microphones and LED ring, Raspberry Pi would have the ability to perform Voice Activity Detection (VAD), estimate DOA (Direction of Arrival) and display the direction over the LED ring, just like Amazon echo or Google Home.
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