V2EX dac

Dac

释义 Definition

DAC 常指 digital-to-analog converter,即“数模转换器”:把计算机等设备输出的数字信号转换为可供音响、耳机或其他模拟电路使用的模拟信号。(在不同领域里,DAC 也可能有其他含义,但最常见的是电子/音频中的“数模转换器”。)

发音 Pronunciation (IPA)

/di e si/

例句 Examples

I bought a USB DAC to improve my headphone sound.
我买了一个 USB 数模转换器来提升耳机的音质。

The engineer tested the DAC’s output to ensure the analog signal matched the expected waveform.
工程师测试了该数模转换器的输出,以确保模拟信号与预期波形一致。

词源 Etymology

DAC 是缩略词,来自 Digital A-to-Converter(digital-to-analog converter)的首字母组合;在电子工程与音频领域被广泛使用,用来简洁指代“数模转换器”。

相关词 Related Words

文学与著作 Literary Works

  • The Art of Electronics(《电子学艺术》)在数据转换与电路设计相关章节中会讨论 DAC 的原理与应用。
  • Digital Audio Signal Processing(《数字音频信号处理》)涉及数字音频链路时常出现 DAC(数模转换)概念。
  • Understanding Digital Signal Processing(《理解数字信号处理》)在讲解采样、重建与信号输出时会提到 DAC 的作用。
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