Seeed Studio ReSpeaker USB Mic Array
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Introduction
The ReSpeaker USB Mic Array is an advanced, compact, and highly sensitive microphone array designed for voice and sound applications. Developed by Seeed Studio, this device is equipped with multiple microphones arranged in an array, providing superior audio capture and processing capabilities. It connects easily via USB, making it an ideal solution for various applications such as voice recognition, conference systems, smart speakers, and other voice-based projects. The ReSpeaker USB Mic Array is designed to enhance the performance of voice-related tasks with its built-in audio processing features, including beamforming, noise reduction, and echo cancellation.
Features
Plug & Play (No driver required), compatible with Windows 10/8/7, Mac, Linux and Android that support OTG.
Voice Pick-up device, Far-field voice pick-up up to 5m and supports 360° pick-up pattern
Acoustic algorithms implemented:
DOA(Direction of Arrival),
AEC(Automatic Echo Cancellation),
AGC(Automatic Gain Control),
NS(Noise Suppression)
Built-in audio jack, which allows for plugging in headphones or speakers (speaker not included)
Specifications
Microphones: 4 high-performance digital MEMS microphones
Audio Processing:
Beamforming
Noise Reduction
Echo Cancellation
Voice Activity Detection (VAD)
Interface: USB 2.0 (Type-A)
Sample Rate: 16 kHz / 48 kHz
Audio Output: 16-bit
Power Supply: Powered via USB (5V)
Operating Voltage: 5V
Operating Temperature: -20°C to +70°C
Pinout
The ReSpeaker USB Mic Array connects via USB and does not require a traditional pinout for usage. However, if needed for advanced projects, the board may offer additional breakout pins for further development and customization, including access to I2S, I2C, and UART interfaces.
Dimensions
Board Size: 70 mm (diameter)
Thickness: 8 mm
Weight: 30 grams
How to Use
Connecting the Device:
Plug the ReSpeaker USB Mic Array into a USB port on your computer or development board.
The device is powered through the USB connection, so no additional power supply is needed.
Setting Up the Environment:
For most operating systems (Windows, macOS, Linux), the ReSpeaker USB Mic Array is recognized automatically without the need for additional drivers.
If using with a development environment like Python, ensure that relevant libraries for audio capture and processing are installed (e.g.,
pyaudio
,sounddevice
).
Programming and Usage:
Utilize audio processing libraries in your chosen programming language to capture and process sound.
Implement voice recognition, beamforming, noise reduction, and echo cancellation features in your projects by utilizing the built-in functionalities of the mic array.
Testing and Calibration:
Test the microphone array by recording audio and adjusting the settings for optimal performance in your specific environment.
Use available software tools to calibrate the array for the best noise reduction and voice detection results.
Integrating into Projects:
Incorporate the ReSpeaker USB Mic Array into larger projects such as smart home systems, voice-activated assistants, or conference systems.
Utilize the advanced audio features to enhance the performance of your applications.
FAQ
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