使用噪声门，音乐经过噪声门，麦克接到旁链输入。
A. Use a gate with the music going through the gate and the mic plugged into the key input.
使用混音器混合这两个信号，然后混合信号送入噪声门的旁链输入。
B. use a mixer to add the two signals, and then use mixed signal into a key input of a gate.
噪声门可将要求的音频信号在强度低于所选电平时无声以提供背景噪声控制。
The noise gate is used to mute an audio signal once it falls beneath a set level for controlling background noise.
算法在给定码率的情况下，可以进行优化次数分布对的自动搜索，同时获得相应的码集噪声门限。
The proposed algorithm can automatically choose an optimization degree distribution and obtain a corresponding ensemble threshold.
算法在给定码率的情况下，可以进行优化次数分布对的自动搜索，同时获得相应的码集噪声门限。
The proposed algorithm can automatically choose an optimization degree distribution and obtain a corresponding ensemble threshold.
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