A sound that is audible is loud enough to be heard.
例句
The Co-lonel's voice was barely audible...上校微弱的聲音幾不可聞。There was an audible sigh of relief.聽得出來松了一口氣。
英漢詞典釋義
adj.
聽得見的
The shot was clearly audible in the silence.寂靜中槍聲聽得很清楚。The noise was audible even above the roar of the engines.盡管有發動機的轟鳴聲,這個噪音還是能夠聽到。The singer’s voice was just audible.那名歌手的聲音剛剛能聽見。