Electronics

Raspberry Pi ReSpeaker 4-Mic Array (Seeed)

AED 113.00

1

Description

The reSpeaker 4-Mic Array is the voice user interface for Raspberry Pi Series, which has been equipped with 4 analog microphones and AC108 Audio Codec for high-definition voice capture. With NLU software algorithms and noise reduction algorithms, it has the abilities of Voice Activity Detection, Direction of Arrival, and Key Word Spotting, widely used in Voice Interaction applications.

How does reSpeaker work?

There are analog microphones mounted on each corner of the square reSpeaker, to receive audio data around then transmit them to the codec. The codec integrates synchronized ADCs with a mic boost amplifier, to deliver valid channel data to the Raspberry Pi/ Pi Zero, where it transits them over I2S ports by standard I2S or PCM format, along with a single port by TDM format.

ONCE THE AUDIO DATA HAS ARRIVED, the NLU algorithms will be applied to the Raspberry Pi. The main functions include Voice Activity Detection(VAD), Direction of Arrival(DOA), and Key Word Spotting(WKS), suitable for various Voice Interaction applications such as voice-based remote control carsvoice user interface, keywords wake up, and so on. 

Specifications:

Specification

Details

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 1B+/2B/3B/3B+/4B

AC108 codec

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

Battery

Exclude

Dimensions

65mm x65mm x9mm

Weight

G.W 38g