Added experimental gain setting. You can make the recording louder or softer by adjusting the input gain.
增加了增益设置(实验)。通过调整输入增益，可以使录音更响亮或较柔和。
Provided are input-gain control apparatus and method of an audio amplifier.
提供了一种音频放大器的输入增益控制设备和方法。
Provided are input-gain control apparatus and method of an audio amplifier.
提供了一种音频放大器的输入增益控制设备和方法。
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