V2EX line-level

Line-Level

释义 Definition

(多用于音频工程)线电平:指音频设备之间传输的标准强度信号电平,通常用于连接播放器、调音台、音频接口、功放等“线路输入/输出(Line In/Out)”。常见标称标准包括:民用约 -10 dBV,专业约 +4 dBu
(也可有其他用法)在写作与编辑中,line-level 有时指“逐行层面/句子层面”的(如 line-level editing),但最常见含义是音频的“线电平”。

发音 Pronunciation (IPA)

/lan lvl/

例句 Examples

This device outputs a line-level signal.
这个设备输出的是线电平信号。

To avoid distortion, set the preamp so the microphone signal is raised to line-level before it reaches the audio interface.
为避免失真,应调节前置放大器,把麦克风信号提升到线电平后再送入音频接口。

词源 Etymology

line(线路/线路连接) + level(电平/强度等级) 组成,字面意思是“线路上的电平”。在音频系统中,它用来区分不同信号强度(如 mic-level、instrument-level、speaker-level),以便正确匹配输入输出与增益设置。

相关词 Related Words

文学与著名作品 Literary / Notable Works

  • Modern Recording Techniques(David Miles Huber, Robert E. Runstein)在录音链路与电平标准章节中常出现 line-level
  • Yamaha Sound Reinforcement Handbook(Gary Davis, Ralph Jones)讲解扩声系统连接与电平匹配时使用 line-level
  • The Audio Expert(Ethan Winer)讨论音频信号路径、增益结构与电平标定时使用 line-level
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