microphone impedance

例句：

1. 1.The microphone is a device used to convert sound waves into electrical signals.
   麦克风是一种将声波转换为电信号的设备。
2. 2. The microphone impedance affects the quality of the audio signal.
   麦克风阻抗影响音频信号的质量。
3. 3.The microphone impedance can be adjusted to optimize the sound quality.
   麦克风阻抗可以调整以优化音质。