英文：Press the setup button to display the setup menu, and move the highlight down to audio.
中文：按Setup鍵顯示Setup菜單，然後移動亮條到Audio選項上。
英文：Music, of course, is just a special case of general audio, but an important one.
中文：當然，音樂是聲波的一種特殊情況，但卻是重要的一種。
英文：An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning, having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment.
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