V2EX microphone-level

Microphone-level

释义 Definition

microphone-level(麦克风电平/话筒电平):指麦克风输出的很弱的音频电信号电平,通常需要通过麦克风前置放大器(preamp)提升增益后,才能达到设备常用的line-level(线路电平)以便进一步处理或录音。(该词多用于音频工程与录音场景。)

发音 Pronunciation (IPA)

/makrfon lvl/

词源 Etymology

microphone(麦克风)+ level(电平/信号电平)构成的复合词(常作定语用法,如 microphone-level signal)。在录音与扩声系统中,为区分不同强度的信号标准,形成了与 line-level 等相对的术语体系。

例句 Examples

Set the input to microphone-level.
把输入设置为麦克风电平。

Because the mixer expects line-level, you need a preamp to boost a microphone-level signal before recording.
因为调音台通常需要线路电平,所以在录音前你需要用前置放大器把麦克风电平信号放大。

相关词 Related Words

文学/作品用例 Notable Works

  • Modern Recording Techniques(David Miles Huber) 录音技术教材中常用于区分 microphone-level 与 line-level。
  • The Audio Expert: Everything You Need to Know About Audio(Ethan Winer) 讲解音频信号链路与电平概念时频繁出现。
  • Sound Reinforcement Handbook(Yamaha) 扩声系统与调音台输入规范部分常涉及 microphone-level 输入与增益设置。
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