底端低音频率通常会丢失量处于较低水平。
Bottom-end bass frequencies usually get lost when the volume is set at a low level.
这促使女性声音频率范围比男性的更为广泛。
This causes a more complex range of sound frequencies than in a male voice.
它的频率响应在整个音频范围内有所下降。
Its frequency response has to be flat over the whole audio range.
该电路可引起有两个频率的音频信号源。
该电路可引起有两个频率的音频信号源。
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