103030216，适用于 Raspberry Pi 的 ReSpeaker 4-Mic Array 是一款适用于 Raspberry Pi 的四
麦克风扩展板，专为 AI 和语音应用而设计。这意味着我们可以构建更强大、更灵活的语音产品，集成 Amazon Alexa 语音服务、Google Assistant 等。与 ReSpeaker 2-Mics Pi HAT 不同的是，该板基于 AC108 开发，AC108 是一款高度集成的四通道 ADC，具有 I2S/
TDM 输出转换，用于高清语音捕获，允许设备拾取 3 米半径内的声音。此外，这个 4-Mics 版本还提供了一个超酷的 LED 环，其中包含 12 个 APA102 可编程 LED
说明
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103030216, ReSpeaker 4-Mic Array for Raspberry Pi is a quad-microphone expansion board for Raspberry Pi designed for AI and voice applications. This means that we can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on. Different from ReSpeaker 2-Mics Pi HAT, this board is developed based on AC108, a highly integrated quad-channel ADC with I2S/TDM output transition for high definition voice capture, which allows the device to pick up sounds in a 3 meters radius. Besides, this 4-Mics version provides a super cool LED ring, which contains 12 APA102 programable LEDs
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