Seeed Studio ReSpeaker 4-Mic Array for Raspberry Pi
Seeed Studio ReSpeaker 4-Mic Array for Raspberry Pi - Image 2
Seeed Studio ReSpeaker 4-Mic Array for Raspberry Pi - Image 3
SKU: SBCD-1380
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Seeed Studio ReSpeaker 4-Mic Array for Raspberry Pi

₹4,038.00 (Inclusive of all taxes)
Out of Stock

The Seeed Studio ReSpeaker 4-Mic Array is an expansion board for Raspberry Pi, designed to empower AI and voice applications with its quad-microphone setup and integrated voice processing, enabling development of voice-controlled systems and assistants.

Features

  • Integrates 4 analog microphones for robust omnidirectional audio capture.
  • Features 12 programmable APA102 RGB LEDs for dynamic visual feedback.
  • Compatible with Raspberry Pi models supporting a 40-pin GPIO header.
  • Supports advanced voice algorithms: VAD (Voice Activity Detection), DOA (Direction of Arrival), and KWS (Keyword Search).
  • Incorporates a highly integrated AC108 quad-channel ADC for high-fidelity audio processing.

Out of stock

Description

The Seeed Studio ReSpeaker 4-Mic Array for Raspberry Pi transforms your single board computer into a powerful platform for voice user interfaces and AI applications. This HAT-compatible board integrates four analog microphones, allowing for 360-degree sound capture crucial for developing accurate voice assistants, smart home devices, and interactive voice-controlled projects. It is specifically engineered to support platforms like Amazon Alexa Voice Service and Google Assistant, providing the necessary audio input capabilities without requiring external audio output hardware.

Equipped with a highly integrated AC108 quad-channel ADC, the ReSpeaker 4-Mic Array delivers clean digital audio data via I2S/TDM output to the Raspberry Pi. This board supports advanced software algorithms including Voice Activity Detection (VAD), Direction of Arrival (DOA), and Keyword Search (KWS), enabling sophisticated sound source localization and wake-word detection. Additionally, 12 programmable APA102 RGB LEDs offer customizable visual feedback, enhancing the user experience. Two Grove interfaces extend its versatility, allowing easy integration with a wide range of Grove modules for expanded functionality.

Key Features

  • Integrates 4 high-quality analog microphones for multi-directional audio input.
  • Features 12 user-programmable APA102 RGB LEDs, controllable via SPI interface for visual status indicators.
  • Compatible with Raspberry Pi models (Zero, 1 B+, 2 B, 3 B, 3 B+) utilizing the 40-pin GPIO header.
  • Incorporates the AC108 highly integrated quad-channel ADC with I2S/TDM output for precise audio digitization.
  • Supports advanced software algorithms including Voice Activity Detection (VAD), Direction of Arrival (DOA), and Keyword Search (KWS).
  • Includes 2 Grove interfaces for seamless expansion with Seeed Studio Studio's extensive Grove ecosystem.
  • Designed for voice capture at a radius of up to 3 meters, ideal for room-scale applications.

Applications

  • Voice assistants (e.g., Amazon Alexa, Google Assistant)
  • Smart home control systems
  • Interactive IoT devices
  • Edge AI voice inference
  • Robotics with voice control interfaces
  • Acoustic sensing and environmental monitoring

Technical Specifications

Microphones4 analog microphones
LEDs12 APA102 programable RGB LEDs (SPI interface)
ADCAC108 highly integrated quad-channel ADC with I2S/TDM output
Software AlgorithmsVAD (Voice Activity Detection), DOA (Direction of Arrival), KWS (Keyword Search)
Interfaces2 Grove Interfaces
CompatibilityRaspberry Pi 40-Pin Headers (Zero, 1 B+, 2 B, 3 B, 3 B+)
Voice Capture Distance3 meters radius
Dimensions7 × 7 × 2 cm
Weight0.038 kg

Frequently Asked Questions

What Raspberry Pi models are compatible with the ReSpeaker 4-Mic Array?

The ReSpeaker 4-Mic Array is designed for Raspberry Pi models with a 40-pin GPIO header, including the Raspberry Pi Zero, 1 B+, 2 B, 3 B, and 3 B+. It seamlessly integrates to provide advanced voice input capabilities for these platforms, leveraging their processing power for AI applications.

What voice processing algorithms does the ReSpeaker 4-Mic Array support?

The board supports advanced software algorithms such as Voice Activity Detection (VAD) for detecting human speech, Direction of Arrival (DOA) for localizing sound sources, and Keyword Search (KWS) for wake-word detection. These features are critical for developing robust voice-controlled applications and intelligent assistants.

Does this ReSpeaker 4-Mic Array provide audio output capabilities?

No, the ReSpeaker 4-Mic Array for Raspberry Pi is solely designed for audio input via its four analog microphones. It does not include integrated audio output functionality. For projects requiring both input and output, users should consider other ReSpeaker models or external audio solutions.

How are the 12 APA102 RGB LEDs controlled on the ReSpeaker 4-Mic Array?

The 12 APA102 programmable RGB LEDs on the ReSpeaker 4-Mic Array are connected to the Raspberry Pi's SPI interface. This allows developers to control each LED individually for visual feedback, status indicators, or creative lighting effects using common SPI libraries in their chosen programming language.

What is the function of the AC108 chip on this array?

The AC108 is a highly integrated quad-channel analog-to-digital converter (ADC) that processes the raw audio signals from the four microphones. It converts these analog signals into digital data, which is then sent to the Raspberry Pi via I2S/TDM output, ensuring high-quality audio input for voice processing.

Package Includes

  • 1 x ReSpeaker 4-Mic Array for Raspberry Pi

Additional Information

Weight 0.038 kg
Dimensions 7 × 7 × 2 cm

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