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Note:

  • The reSpeaker 2-Mics Pi HAT has been upgraded to version 2.0. The codec chip has been replaced from WM8960 to TLV320AIC3104, enabling support for Raspberry Pi 5 and expanding the sampling rate range from 8 kHz to 96 kHz.
  • While the Pi HAT is a classic for DIY, the XVF3800 USB takes your project to the next level. No more kernel compiling or I2S troubleshooting. Plug it into your Pi 4, Pi 5, or PC, and it works instantly with professional hardware-grade noise cancellation.
  • Voice User Interface for Raspberry Pi Series: Placed by 4 analogue microphones, which come with the Voice Interaction algorithms of VAD(Voice Activity Detection), DOA(Direction of Arrival), KWS(Key Word Spotting)
  • TLV320AIC3104 Audio Codec: Low power, high-quality stereo Codec designed for portable digital audio applications
  • Controllable Peripherals: Provide 3 programable APA102 RGB LEDs and 1 User Button for attached Speech Recognition usage
  • Easy Assembly: Simply pop up on the Raspberry Pi to use

The reSpeaker 2-Mics Pi HAT is the voice user interface for Raspberry Pi Series, which has been equipped 2 analogue microphones and TLV320AIC3104 Audio Codec for high-definition voice capture. Attach 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 analogue 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 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.

 

The NLU algorithms will be applied to the Raspberry Pi once the audio data has arrived. 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 cars, voice user interface, keywords wake up and so on.

Since the audio data transmitted may contain the noise as well, the reSpeaker comes with the functions of Auto Echo Cancellation (AEC), Beamforming, Webrtc Noise Suppression (NS), and Automatic Gain Control (AGC) to reduce noise and perform better audio data to the Raspberry Pi.

Specification

Specification

Details

MIC

2 analog microphones

LED

3 APA102 RGB LEDs

Raspberry Pi 40-Pin Headers

Support Raspberry Pi5, Raspberry Pi Zero, Raspberry Pi 1B+/2B/3B/3B+/4B

TLV320AIC3104 codec

Low power, high quality stereo Codec designed for portable digital audio applications

Software Algorithm

VAD(Voice Activity Detection), DOA(Direction of Arrival) and KWS(Keyword Search)

User button

1 programmable button

Voice Capture Distance

3 meters radius voice capture

Battery

Exclude

Dimensions

65mm x 30mm x 15mm

Weight

G.W 33g

Application

  • Voice Interaction Learning
  • Secondary software Development
  • Voice-based remote control cars

Get started with Google Assistant

How to use button to trigger Google Assistant

Documents

Certification

HSCODE8518900090
USHSCODE8543903500
UPC841454120018
EUHSCODE8517180000
COOCHINA

Technical Details

Technical details

Dimensions65mm x30mm x15mm
WeightG.W 33g
BatteryExclude

Part List

ReSpeaker 2-Mics Pi HAT V2.0

x1

reSpeaker 2-Mics Pi HAT V2.0 for Raspberry Pi - TLV320AIC3104 Audio Codec, 2 Analog Microphones, 3 APA102 RGB LEDs, 3.5mm Audio Jack, User Button, attached with NLU software algorithms, VAD,DOA, KWS

SKU 107100001

reSpeaker 2-Mics Pi HAT is a dual-microphone expansion board for Raspberry Pi designed for AI and voice applications. You can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.

Mic Array Numbers
Voice Processor
XIAO ESP32-S3
Case
USD$12.90
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