The advent of wireless headphones is slowly laying the headphone jack to rest, but it’s not going out without a fight. The design, which traces its roots back to the late 1800s is sure to find a home on wired headphones, laptops, and various bits of audio equipment for years to come.

无线耳机的问世正在慢慢将耳机插Kong摆放下来，但它必须不战而胜。 该设计的历史可以追溯到1800年代后期，它肯定会在未来几年内为有线耳机，笔记本电脑和各种音频设备找到家。

If you’ve ever contemplated the plug on your old set of wired EarPods or other headphones for even a second as you go to pop it into a jack, you’ve surely noticed the series of small, colored, plastic rings it has in varying numbers from plug to plug. What are those for?

如果您打算将旧的有线EarPods耳机或其他耳机上的插头插塞到插Kong中时甚至还要花一秒钟的时间，那么您肯定会注意到它的一系列彩色塑料小环在变化插头之间的数字。 这些是做什么用的？

Henry Phillips

亨利·菲利普斯

The job of a headphone plug and jack actually is very simple: to communicate audio signals from the source and transmit them to your headphone’s where they’re played as audio. These rings play a crucial role, not because of what they do, but because of what they don’t.

耳机插头和插Kong的工作实际上非常简单：传递来自音源的音频信号并将其传输到耳机的音频处。 这些环起着至关重要的作用，不是因为它们做什么，而是因为它们没有做什么。

Made of a non-conductive material (typically plastic) these rings serve to divide the plug into the various different conductive sections, known as pins, that actually do the work. Each plug has to have at least two pins (and therefore, at least one ring to separate them): one section to carry the signal, while the other to serve as a return path and ground, which helps to cancel out any distortion or interference the audio signal picks up along the way.

这些环由非导电材料(通常是塑料)制成，用于将插头分成实际上可以完成工作的各种不同的导电部分(称为引脚)。 每个插头必须至少有两个插针(因此，至少要有一个环将它们分开)：一个部分用于传输信号，而另一部分用作返回路径和接地，这有助于消除任何失真或干扰音频信号沿途拾取。

As a result, you can tell a lot about headphones by looking at their plug. One ring means mono playback. This basic plug only delivers one channel of sound to both the left and right earbud. Two rings mean stereo. These plugs have three pins, one for the left channel, one for the right, and one for ground. Three separating rings means you’ve got two stereo pins, and a microphone pin as well, and is the one you’re most likely to run into when you’re looking at smartphone earbuds.

因此，通过查看耳机的插头，您可以了解很多有关耳机的信息。 一声响表示单声道播放。 该基本插头仅向左耳塞和右耳塞提供一个声道。 两个环表示立体声。 这些插头有三个插针，一个插在左声道，一个插在右声道，一个插在地上。 三个分开的环意味着您有两个立体声销和一个麦克风销，当您看着智能手机耳塞时，这是最有可能碰到的销。

为什么有些耳机有两个环，而另一些却有三个？ (Why Some of the Earphones Have Two Rings While Others Have Three?)

In this story, we will be looking at the reasons behind headphone stripes and why some have two while other have three stripes on them. Have a look!

在这个故事中，我们将研究耳机条纹背后的原因，以及为什么有些耳机条纹有两个，而另一些耳机条纹有三个。 看一看！

音频插Kong。 (The audio jack.)

The audio jack is the tip of the earphone cable which goes into the device. It is the receiver of audio signals which are further transmitted to the listener. The tip has various functions depending on the type. The use and functionality of audio jack are defined by the number of rings on the jack.

音频插Kong是进入设备的耳机电缆的尖端。 音频信号的接收者进一步被发送到听众。 根据类型的不同，笔尖具有各种功能。 音频插Kong的使用和功能由插Kong上的响铃次数定义。

一环插Kong。 (The jack with one ring.)

This type of audio jack is the simplest one. They have only one ring on the shank. This ring divides it into two parts, namely speakers (earphones) and the sleeve. Mono-audio is offered by the single ringed audio jack. A single channel source is used to produce sound in this type. Both of the earphones replicate the sound without any stereo effect.

这种音频插Kong是最简单的一种。 他们的小腿上只有一个戒指。 此环将其分为两部分，即扬声器(耳机)和保护套。 单声道音频插Kong提供单声道音频。 单个通道源用于产生这种类型的声音。 这两款耳机都能复制声音，而没有任何立体声效果。

有两个环的千斤顶。 (The jack with two rings.)

The jack with two rings on the shank offers a stereo audio experience. These rings bifurcate the shank into three parts, namely right, left and the sleeve. The sounds produced in the left and the right earphones have time differences for soundwaves. Thus, the listener gets an impression of stereo sound due to phase cancellation produced by the stereo audio.

柄上带有两个环的插Kong可提供立体声音频体验。 这些环将小腿分为三个部分，即右，左和套筒。 左右耳机产生的声音在声波上存在时间差异。 因此，由于立体声音频产生的相位抵消，收听者会得到立体声的印象。

三环音频插Kong。 (The three ringed audio jack.)

The three-ringed audio jacks are the most advanced ones. Most of the devices nowadays come equipped with them. The shank of the jack is divided into four segments by the rings. The third ring is added for the microphone connectivity while the first three being the left, right and sleeve.

三环音频插Kong是最先进的插Kong。 如今，大多数设备都配备了它们。 千斤顶的杆由环分成四个部分。 添加了第三个环以实现麦克风连接，而前三个环是左，右和套筒。

The two stripe earphone can only be used for listening music, it does not have a mic to talk, and three stripe earphone has mic, can be use for listing to music and make a phone call

两条纹耳机只能用于聆听音乐，没有麦克风可以通话，三条纹耳机则具有麦克风，可以用于播放音乐和拨打电话