digital-to-analogue conversion

简明释义

数字仿真转换；数模转换

英英释义

例句

1.For high-fidelity audio, quality digital-to-analogue conversion 数字到模拟转换 is crucial.

对于高保真音频，优质的数字到模拟转换至关重要。

2.The digital-to-analogue conversion 数字到模拟转换 process can introduce some noise if not done properly.

如果处理不当，数字到模拟转换过程可能会引入一些噪音。

3.The audio system requires digital-to-analogue conversion 数字到模拟转换 to play music from a digital source.

音频系统需要数字到模拟转换来播放来自数字源的音乐。

4.The sound card in your computer performs digital-to-analogue conversion 数字到模拟转换 to output audio through speakers.

计算机中的声卡执行数字到模拟转换以通过扬声器输出音频。

5.In many televisions, digital-to-analogue conversion 数字到模拟转换 is essential for displaying channels that are not broadcast in HD.

在许多电视中，数字到模拟转换对于显示不是以高清广播的频道至关重要。

作文

In today's fast-paced digital world, the process of digital-to-analogue conversion is essential for bridging the gap between digital signals and analogue devices. This conversion plays a crucial role in various applications, ranging from audio playback to telecommunications. Understanding digital-to-analogue conversion can enhance our appreciation of how technology integrates into our daily lives.Digital signals are composed of discrete values, typically represented by binary code (0s and 1s). These signals are easy to manipulate and store in modern computing systems. However, many devices we interact with, such as speakers and televisions, operate on analogue signals, which are continuous waveforms that represent sound, light, or other forms of data. The need arises for a method to convert the digital representations into a format that analogue devices can understand, which is where digital-to-analogue conversion comes into play.The process of digital-to-analogue conversion involves several key steps. First, the digital signal is sampled at specific intervals, capturing the necessary information to recreate the original analogue waveform. This sampling process is pivotal because it determines the quality and accuracy of the final output. The more samples taken, the closer the reproduction will be to the original signal.Once the digital signal is sampled, it is then quantized, which means assigning a numerical value to each sample. This step is vital as it allows the digital representation to correspond accurately to the analogue waveform. After quantization, the next phase is reconstruction, where the digital samples are converted back into a continuous analogue signal. This is typically achieved through the use of a digital-to-analogue converter (DAC), which processes the digital input and produces an analogue output.The importance of digital-to-analogue conversion is evident in everyday technology. For instance, when you listen to music on your smartphone, the audio files are stored in a digital format. To hear the music through your headphones or speakers, the device must perform digital-to-analogue conversion to translate the digital audio signals into sound waves. Without this conversion, we would not be able to enjoy our favorite songs or podcasts.Moreover, digital-to-analogue conversion is also crucial in the realm of telecommunications. When making a phone call, your voice is captured as an analogue signal, which is then digitized for transmission over networks. At the receiving end, the digital signal must undergo digital-to-analogue conversion again to restore your voice to its original analogue form, allowing the person on the other end to hear you clearly.In conclusion, the process of digital-to-analogue conversion is fundamental to the functioning of numerous devices and technologies in our modern world. By understanding how this conversion works, we can better appreciate the seamless integration of digital and analogue systems in our daily lives. Whether it's enjoying music, making phone calls, or using various electronic devices, digital-to-analogue conversion is at the heart of our technological experiences, ensuring that we can access and enjoy the vast array of digital content available today.

在当今快速发展的数字世界中，数字到模拟转换的过程对于弥合数字信号和模拟设备之间的差距至关重要。这种转换在从音频播放到电信的各种应用中发挥着关键作用。理解数字到模拟转换可以增强我们对技术如何融入日常生活的欣赏。数字信号由离散值组成，通常用二进制代码（0和1）表示。这些信号在现代计算系统中易于操作和存储。然而，我们所互动的许多设备，如扬声器和电视，都是基于模拟信号工作的，这些信号是表示声音、光或其他形式数据的连续波形。因此，需要一种方法将数字表示转换为模拟设备可以理解的格式，这就是数字到模拟转换发挥作用的地方。数字到模拟转换的过程涉及几个关键步骤。首先，数字信号在特定间隔内被采样，以捕捉重建原始模拟波形所需的信息。这个采样过程至关重要，因为它决定了最终输出的质量和准确性。采样越多，重现将越接近原始信号。一旦数字信号被采样，它就会被量化，这意味着为每个样本分配一个数值。这一步骤至关重要，因为它允许数字表示与模拟波形准确对应。在量化之后，下一阶段是重建，其中数字样本被转换回连续的模拟信号。这通常通过使用数字到模拟转换器（DAC）来实现，该转换器处理数字输入并产生模拟输出。数字到模拟转换的重要性在日常技术中显而易见。例如，当你在智能手机上听音乐时，音频文件以数字格式存储。为了通过耳机或扬声器听到音乐，设备必须执行数字到模拟转换，将数字音频信号转换为声波。如果没有这种转换，我们将无法享受最喜欢的歌曲或播客。此外，数字到模拟转换在电信领域也至关重要。当拨打电话时，你的声音作为模拟信号被捕获，然后被数字化以便在网络上传输。在接收端，数字信号必须再次经历数字到模拟转换，以恢复你的声音到其原始的模拟形式，使另一端的人能够清晰地听到你。总之，数字到模拟转换的过程是我们现代世界中众多设备和技术正常运行的基础。通过理解这一转换如何工作，我们可以更好地欣赏数字和模拟系统在日常生活中的无缝整合。无论是享受音乐、打电话还是使用各种电子设备，数字到模拟转换都是我们技术体验的核心，确保我们能够访问和享受当今可用的大量数字内容。