TIDA-01470 基于 PCM1864 的线性麦克风板 (LMB) 参考设计 The PCM1864 linear microphone board (LMB) is an easy-to-use reference design for applications that are cost sensitive and require clear-spoken audio, such as voice triggering and speech recognition. This TI Design uses a linear microphone array (up to four) to capture a voice signal, and con