Years ago when Kenya made the switch from analogue to digital television broadcasts, the Ng'ang'a family switched their TV set off.

几年前，肯尼亚模拟信号被数信号逐步取代，麦克恩戈家里的老式电视机便被荒废在一旁。

It was too hard to watch video content online, you had to put codecs in your browser and do all this stuff, and the company eventually went out of business in 2003.

在上看视频太困难了，你不得不向浏览器加入多媒体数信号编解码器，加入所有编解码器，最后这家公司最终在 2003 年退出了市场。

These phones, as yet only prototypes from Casio, a Japanese firm, transmit digital signals by varying the intensity of the light given off from their screens.

目前，这两部不过是日本卡西欧公司的样机，它们能通过改变自身屏幕的光强来传传输数信号。

Throughout the 20th century, cable networks expanded, and technology continued to evolve as telephones eventually replaced telegraphs, and the digital data eventually replaced analog signals.

二十世纪，电缆络扩张技术发展，电话代替了电报，数信号最终取代模拟信号。

The device changes electrical signals from the brain into commands, and then into digital signals that machine in the clothing can understand.

该设备将大脑发来的电流信号转化为指令，然后转化为衣服上的机器能理解的数信号。

Analog signals vary continuously, as with the rays of light forming an image, while digital signals are non-continuous, as with binary numbers.

模拟信号是连续变化的，如形成图像的光线，而数信号是非连续的，如二进制数。

The last two are similar to the numbers one and zero that is symbols of a digital signal.

后两个似于数 1 和 0，是数信号的符号。

Analog and digital signals are two types of signals carrying information.

模拟信号和数信号是两种携带信息的信号。

Money is now recorded, processed and reprocessed as digital signals by a computer.

钱现在被计算机记录、处理和再处理为数信号。

The scheme of sending a digital signal or a binary set of 1s and 0s by transmitting different frequencies of electromagnetic waves is called frequency shift keying.

通过传输不同频率的电磁波来发送数信号或一组由1和0组成的二进制数据的方法称为频移键控。

And so what's really interesting about the fire service and actually all emergency services is they put digital signals on an analog radio network.

而且关于消防部门以及所有应急服务机构真正有趣的一点是，他们在模拟无线电络上使用数信号。

Whereas with language, you write it down, and you transfer it to a digital signal, almost like it's a lossless like transfer.

而在语言方面， 你写下文，便能将其转换为数信号，几乎是一种无损的传输过程。

A generic term that does not distinction between microprocessor, microcontroller, and digital signal processor.

一个对于微处理器、微控制器他数信号处器无差别的通用术语。

Digital signals also store more information in an electromagnetic wave, but they only use particular, discrete values.

数信号也在电磁波中存储更多信息，但它们只使用特定的离散值。

So whether you're trying to transmit an analog signal or a digital signal it really is about how do you communicate numbers using some type of signal.

因此，无论您是尝试传输模拟信号还是数信号，这实际上都是关于如何使用某种型的信号来传达数。

In a computer, money is sequences of digital signals endlessly recorded, erased, processed, and reprocessed, and endlessly modified by other computers.

钱在电脑中变成了一系列数信号，这些数信号可以无数次地被录入、清除、处理、再处理并由其他的电脑不断地加以修改。

So the thing is, you're capturing a physical phenomenon, and then you're basically going through a very complicated pipeline of like image processing, and then you're translating that into some kind of like digital signal.

关键在于， 你捕捉的是一种物理现象，随后基本上经历一个非常复杂的图像处理流程，最终将这些信息转换成某种数信号。

For example, when you play music on your wireless headphones, your smartphone transmits around a million 1s and 0s to your headphones every second using Bluetooth.

例如， 当你用无线耳机播放音乐时，智能手机每秒通过蓝牙向耳机传输约百万个1和0的数信号。

But modern day devices don’t have that problem, mainly because they mostly use digital signals instead of analog signals.

但现代设备没有这个问题，主是因为它们大多使用数信号而不是模拟信号。

But in case you're curious, and you don't have to understand this to know the difference between analog and digital signals and when they might be useful, this first place is the ones place just as you're used to.

但如果您很好奇，并且您不必了解这一点即可了解模拟信号和数信号之间的区别以及它们何时可能有用，那么第一个位置就是您习惯的位置。