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When leaks about what the chassis of the iPhone 7 might look like hit headlines earlier this week, technology columnists and industry analysts jumped on the chance to report that Apple’s next device may finally ditch its 3.5mm audio port altogether. Instead of clinging to the nearly-ancient technology, the next iPhone could begin paving the road to a world where we’re finally past the point of relying on cords to listen to our audiobooks, podcasts, or playlists altogether.

當本周早些時候有關iPhone 7底盤的外觀看起來像是頭條新聞時，技術專欄作家和行業分析家紛紛抓住機會報道蘋果的下一代設備可能最終完全放棄了其3.5mm音頻端口。 下一代的iPhone可能不再依賴于近乎古老的技術，而可能會開始鋪平通往一個世界的道路，在這個世界中，我們終于擺脫了完全依靠繩索收聽我們的有聲讀物，播客或播放列表的地步。

But?why?do?we still use audio jacks in 2015 that were invented in the 19th century? And what’s going to be the next best thing that comes along to replace it?

但是為什么我們仍然使用2015年音頻插Kong在19世紀發明的？ 取代它的下一個最佳選擇是什么？

數字殺了模擬之星 (Digital Killed the Analog Star)

When discussing the nuts and bolts of how your digital song on your digital phone plays as an analog audio signal to the analog speakers inside your headphones, it helps to know how the transmission of audio actually works first. Not to slow anything down with an entire technical manual on the subject, but in short, it looks a little something like this:

在討論數字電話上的數字歌曲如何作為模擬音頻信號發送到耳機內的模擬揚聲器的基本細節時，它有助于了解音頻傳輸首先如何真正起作用。 不要放慢整個主題的技術手冊的速度，但總之，它看起來像這樣：

To explain?what we’re talking about even further, we’ll follow the lifespan of a song from start to finish via a Spotify selection.

為了進一步解釋我們正在談論的內容，我們將通過Spotify選擇從頭到尾跟蹤歌曲的壽命。

First,?a song is recorded: in 2015, this almost always done with a specific mix of digital and analog tracks?mixed together inside a computer sent through an analog-to-digital converter (ADC), which is then used to digitally master that music into the final track. This file is uploaded to one of Spotify’s servers, and next, the company makes the song available to stream over the air at a quality level of 320 kilobytes per second,?or the same quality as an average CD rip if you pay for the monthly Premium service.

首先，要錄制一首歌：在2015年，這幾乎總是通過在計算機內部通過模數轉換器(ADC)發送的數字和模擬音軌的特定混合來完成的，然后再將其用于數字母帶音樂進入最終軌道。 該文件被上傳到Spotify的一臺服務器上，然后，該公司使歌曲可以以每秒320 KB的質量水平通過空中傳輸，如果您支付每月的Premium，則其質量與平均CD rip相同。服務。

Your phone takes that digital data (about 7MB for a full song at 320kbps), and sends it through what’s called a “digital-to-analog converter, or DAC. The DAC is usually installed inside the phone?itself, and is designed?to take the binary data of your song and translate that into analog audio signals, morphing each one and zero into a series of different currents and voltages that push the driver inside a headphone to create the sound you eventually hear.?The jack on the end of every smartphone is attached to a very small DAC, which allows you to plug in everything from a pair of headphones to a full stack of tower speakers and still get the same amount of sound out of either. And while the headphones would be loud enough considering their size, conversely the sound would be very quiet on larger speakers without the help of an external amplifier to boost the signal.

您的手機將獲取這些數字數據(完整歌曲以320kbps的速度大約需要7MB)，然后通過所謂的“數模轉換器”或DAC發送數據。 DAC通常安裝在手機內部，旨在獲取歌曲的二進制數據并將其轉換為模擬音頻信號，將一個和零分別變形為一系列不同的電流和電壓，從而將驅動器推入耳機中。創建最終聽到的聲音。 每個智能手機末端的插Kong都連接到一個很小的DAC，使您可以插入從一對耳機到一堆完整的塔式揚聲器的所有聲音，并且仍然從其中的任何一個獲得相同的聲音。 盡管考慮到耳機的大小，耳機將足夠響亮，但是相反，如果沒有外部放大器來增強信號，則在較大的揚聲器上聲音將非常安靜。

The trick of keeping headphones small is relying on a DAC that’s stored inside the phone, the computer, or the laptop to take care of the heavy lifting.?As such, 3.5mm audio jacks have survived this long because they’re the essential, universal way to play music on any device in 2015, but doesn’t all this back and forth conversion seem like a little much?

減小耳機尺寸的技巧是依靠存儲在手機，計算機或筆記本電腦內部的DAC來減輕繁重的負擔。 因此，3.5毫米音頻插Kong之所以能夠存活這么長的時間，是因為它們是2015年在任何設備上播放音樂的必不可少的通用方式，但是來回轉換似乎并不多嗎？

為什么不完全擺脫電線？ (Why Not Just Get Rid of the Wires Altogether?)

Without wasting any more of your time than we have to: it just doesn’t sound as good, as much as we might want it to.

沒有浪費您比我們更多的時間：這聽起來并不像我們想要的那樣好。

When looking at this debate, it’s easy to draw parallels toward another argument that’s been raging with PC gaming geeks everywhere for years – wired vs. wireless mice. Even with all the advancements made to wireless mice and the technology it uses to communicate every click or scroll your mouse makes, the responsiveness is still miles behind what you’d get with a wired setup. This is because the air between the transmitter and the receiver (in the case of mobile music: the phone to your headphones) isn’t always an empty space. There are walls and floors and denim-lined pockets to get through, all of which cause resistance on the wireless link between two devices.

在看這場辯論時，很容易將與多年來一直困擾著PC游戲愛好者的另一種論點相提并論-有線鼠標與無線鼠標。 即使無線鼠標已取得了所有進步，并且它用于傳達鼠標的每次單擊或滾動所使用的技術，其響應速度仍遠遠落后于有線設置。 這是因為發送器和接收器之間的空氣(對于移動音樂：耳機中的電話)并不總是空的。 有墻壁和地板以及襯有牛仔布的口袋可以穿過，所有這些都會在兩個設備之間的無線鏈路上產生阻力。

To handle audio, currently Bluetooth transmits over what’s known as the A2DP standard, short for the Advanced Audio Distribution Profile. And while?Bluetooth 4.2 is plenty fast enough to digitally transmit the file of your song in a few seconds, actually getting it to play out of audio speakers is another job entirely. This is handled by a DAC installed inside the Bluetooth headphones themselves, and while the quality of wireless signal decoding continues to get better as time goes on, most audiophiles already know you’d never listen to your favorite album over Bluetooth unless you were completely out of other options.

為了處理音頻，當前藍牙通過所謂的A2DP標準(高級音頻分發配置文件的縮寫)進行傳輸。 盡管藍牙4.2足夠快，可以在幾秒鐘內以數字方式傳輸歌曲文件，但實際上要使它從音頻揚聲器中播放是另一項工作。 這是通過安裝在藍牙耳機本身內部的DAC處理的，并且隨著時間的推移，無線信號解碼的質量會不斷提高，但大多數發燒友已經知道，除非您完全不在意，否則您永遠不會通過藍牙收聽自己喜歡的專輯。其他選擇。

Cost comparatively, a pair of $300 Bluetooth headphones won’t sound as good as good as a wired pair simply for the fact that the wireless version need extra components like a battery or onboard DACs in order to work. Without the need to include these, wired headphone makers can squeeze those extra dollars into higher quality drivers, which leads to higher quality sound at the same price. Not only that, but a higher price means less availability in the developing world, regions?where Apple continues to do?gangbusters selling pre-owned devices?that work with basic 3.5mm headphones.

相對而言，價格僅為300美元的藍牙耳機聽起來不如有線耳機好，原因是無線版本需要額外的組件(如電池或板載DAC)才能正常工作。 無需包括這些，有線耳機制造商可以將這些額外的資金投入到更高質量的驅動器中，從而以相同的價格獲得更高質量的聲音。 不僅如此，更高的價格還意味著在發展中國家(蘋果繼續在這些地區賣高價的二手設備，這些設備可以使用基本的3.5mm耳機)，發展中國家的可用性下降。

兩全其美的 (The Best of Both Worlds)

If Apple really wants to commit to ditching the audio port, they’re going to need to have something that sounds just as good and is as easy to plug in to boot. The company’s MFi program has confirmed that Apple wants more people to start thinking about the Lightning port as a one-stop shop for everything from charging to plugging in your headphones…but this is easier said than done.

如果Apple真的想放棄音頻端口，他們將需要有聽起來一樣好并且易于插入引導的東西。 該公司的MFi計劃已經證實，蘋果希望更多的人開始考慮將Lightning端口視為一站式商店，從充電到插入耳機……這一切說起來容易做起來難。

First, there’s the issue of sound quality. While adding Lightning audio to say; a new pair of over-the-ear Beats headphones does seem enticing, what kind of monopoly could this lead to? What about the manufacturers who can’t afford to license Apple’s proprietary connection technology to add to their earbuds? Will they simply move on to Android devices instead? What about DRM restrictions, which when attached to a digital audio stream, can automatically prevent anyone from listening to pirated music on that device?

首先，存在音質問題。 同時添加閃電音頻說； 一對新的Beats入耳式耳機似乎很誘人，這會導致哪種壟斷？ 那些負擔不起Apple專有連接技術來增加耳塞的制造商呢？ 他們會改用Android設備嗎？ 附加到數字音頻流上的DRM限制會自動阻止任何人在該設備上收聽盜版音樂嗎？

People want to use their smartphones the way they want to use them, and potentially putting rules on top of that about where or how you jam out alone or with friends could backfire immensely if approached without enough caution.?History has taught us that the problem with trying to?introduce a new way of doing something in the digital world, is that from the very start everyone has to be on board the ship at once – or no one will be. Apple has had an incredible ride over the past decade and a half, dotted with very few missteps, but that doesn’t mean they haven’t massively over-calculated their position in the past or paid the price as a result.

人們想以使用智能手機的方式來使用智能手機，并且如果沒有采取足夠的謹慎態度，就可能在與朋友獨自或與朋友一起出入的地點或方式上制定規則，這可能會適得其反。 歷史告訴我們，嘗試在數字世界中引入一種新的做事方式的問題是，從一開始，每個人都必須立即上船-否則沒人會上船。 蘋果在過去的十五年中經歷了一次令人難以置信的旅程，幾乎沒有失誤，但這并不意味著蘋果過去并沒有過分高估自己的地位或為此付出代價。

This isn’t to say it can’t be done – and if there’s anyone who could, it is absolutely Apple – but it’s going to be a uphill climb to wipe out a way of listening to audio?that’s older than recorded audio?itself.?Even though the iPhone 7 may be attempting to take the first step for us, it’s likely that the audio port won’t be going anywhere for a few more years. Apple will have a long road ahead of them filled with a lot of people who need convincing, and right now there are just?too many wired headphones compared to other Bluetooth options that still lack the umph they’ll need if true audiophiles are going to start taking it seriously as a way to enjoy high-quality music or movies.

這并不是說不可能完成-如果有誰可以做到，那絕對是Apple-但這將是一個艱巨的嘗試，以消除收聽早于錄制音頻本身的音頻的方式。 即使iPhone 7可能正在嘗試為我們邁出第一步，但音頻端口很可能幾年都不會出現故障。 蘋果將??有很多需要說服力的人走在他們前面，還有很長的路要走。與其他藍牙選件相比，現在的有線耳機太多了，如果真正的發燒友要開始，它們仍然缺少它們的體積認真對待它，以享受高品質的音樂或電影。

In order to truly change the marketplace for good, Apple will need to do a whole lot more than just take the aging analog audio jack off their next model. They’ll need to help push Bluetooth forward to move past a2dp as its only means of getting consistent sound from one place to the next over the air, and quell the consumer’s concerns about using Lightning audio as a way to introduce DRM restrictions on certain types of music.

為了真正改變市場，Apple不僅需要將老化的模擬音頻插Kong從下一個型號中移除，還需要做更多的事情。 他們需要幫助推動藍牙向前發展，使其超越a2dp，這是通過無線從一個地方到另一個地方獲得一致聲音的唯一方法，并消除了消費者對使用Lightning音頻作為對某些類型引入DRM限制的一種擔憂。音樂。

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So then, it seems the main reason why we still use analog audio ports because for the time being: they’re what works best across every section of the market, without fail. They’re cheap to manufacture, hold up for years at a time, and provide the same level of quality no matter whether you’re listening on a Sony Walkman from 1997 or an?iPhone 6s.

因此，這似乎仍然是我們仍然使用模擬音頻端口的主要原因，因為暫時而言：它們是在市場的每個部分都運行得最好的，而不會失敗。 它們的制造成本低廉，一次可以使用多年，并且無論您使用1997年的Sony Walkman還是iPhone 6s，都可以提供相同的質量。

That kind of ubiquitous reliability can’t be overestimated, and although Apple has led the way when it comes to encouraging consumers to leave certain technologies in the dust (where they belonged), they also thought FireWire was going to be a revolution in connectivity – and just look how that worked itself out.

這種普遍存在的可靠性不能被高估，盡管蘋果在鼓勵消費者放棄某些技術(他們所屬的領域)方面一直處于領先地位，但他們也認為FireWire將在連接方面掀起一場革命-然后看看效果如何。

All this in mind, it’s clear that we need to start thinking about this as a society, and look forward to wireless as the logical progression of our audio enjoyment experience. “If it ain’t broke, don’t fix it” doesn’t always mean what we think it does, and sometimes, it’s just a precursor to “don’t fix it unless you know you can do better”.

考慮到所有這些，很明顯，我們需要開始將其視為一個社會，并期待將無線作為我們音頻享受體驗的邏輯發展。 “如果沒有破裂，就不要修復”并不總是意味著我們認為它所做的，有時，這只是“除非您知道自己可以做得更好，否則就不要修復”的前兆。

Image Credits: Flickr 1, 2, 3, Wikimedia

圖像現金：Flickr的1 ， 2 ， 3 ，維基

翻譯自: https://www.howtogeek.com/235578/htg-explains-why-do-we-still-use-analog-audio-ports/

查看模擬器使用端口