Interface for microphone-to-microphone communications

A microphone system includes a first transducer deployed at a first microphone; a second transducer deployed at a second microphone, the first microphone being physically distinct from the second microphone; a decimator deployed at the second microphone that receives first pulse density modulation (PDM) data from the first transducer and second PDM data from the second transducer and decimates and combines the first PDM data and the second PDM data into combined pulse code modulation (PCM) data; and an interpolator deployed at the second microphone for converting the combined PCM data to combined PDM data, and transmits the combined PDM data to an external processing device. 种麦克风系统，该麦克风系统包括：第换能器，该第换能器设置在第麦克风处；第二换能器，该第二换能器设置在第二麦克风处，第麦克风与第二麦克风物理地不同；抽取器，该抽取器设置在第二麦克风处，从第换能器接收第脉冲密度调制PDM数据，并且从第二换能器接收第二脉冲密度调制PDM数据，并且将第脉冲密度调制PDM数据和第二脉冲密度调制PDM数据抽取并组合成组合脉冲编码调制PCM数据；以及插入器，该插入器设置在第二麦克风处，用于将组合脉冲编码调制PCM数据转换成组合脉冲密度调制PDM数据，并且向外部处理装置发送组合脉冲密度调制PDM数据。