a.  音频的，声频的

n.  音频；声音

• audio and video equipment  音频视频设备

• audio and video cassettes 

  盒式录音带和录像带

• A Pearson spokesperson told BuzzFeed News that “digital materials are less expensive and a good investment” that offer new features, like audio texts, personalized knowledge checks and expert videos.

  音频文本

• You can save the audio for editing later.

  你可以把音频储存起来，以后编辑。

BrE /ˈɔːdiəʊ/ 

NAmE /ˈɔːdioʊ/