iphone音频输出

The overwhelming majority of audio you listen to uses stereophonic (or stereo) sound. This means there are at least two separate audio channels: one for the right speaker, and one for the left. Each channel may play something slightly different, giving the illusion of directional sound like you experience in everyday life.

您收听的绝大多数音频都使用立体声(或立体声)声音。 这意味着至少有两个单独的音频通道：一个用于右扬声器，一个用于左扬声器。 每个通道的演奏可能略有不同，给人一种定向声音的感觉，就像您在日常生活中所经历的那样。

While you can hear the difference in a stereo track from almost any speaker, the simplest way to do it is with a pair of headphones. Grab some and listen to the opening of Sum 41’s classic Fat Lip. In the call and response section at the start, the lyrics, “As a kid” plays through the right earbud, “was a skid” plays through both, and, “and know one knew me by name” plays through the left earbud. This is one of the more over the top examples, but lots of songs have subtle stereo effects. Pretty cool, right?

虽然您几乎可以从任何扬声器上听到立体声轨道上的差异，但最简单的方法是戴上耳机。 抓住一些，听听Sum 41的经典Fat Lip的开幕。 在一开始的“呼叫和响应”部分中，歌词“ As a kid”在右耳塞中播放，“ was skid”在这两者中播放，而“并且知道一个人知道我的名字”在左耳塞中播放。 这是最重要的例子之一，但是很多歌曲具有微妙的立体声效果。 很酷吧？

Well, not always. Stereo audio is great if you’re able to listen to both channels at the same time, but if you’re hard of hearing in one ear or want to only wear one earbud, then it’s actually worse than single channel (or mono) audio. Fat Lip sounds great in stereo when you have both earbuds in, but if you listen to that section of the song with only one in it sounds awful.

好吧，并非总是如此。 如果您能够同时收听两个声道，则立体声音频效果很好，但是如果您一只耳朵听不到声音或只想戴一副耳塞，那么它实际上比单声道(或单声道)音频差。 当您同时插入两个耳塞时， Fat Lip的立体声听起来很棒，但是如果您只听一听那首歌，那听起来就很糟糕。

The good news is that this is something Apple has considered. You can force your iPhone to play mono audio, in which case it combines the two stereo tracks into a single track that it plays through both earbuds.

好消息是这是苹果公司考虑的事情。 您可以强制iPhone播放单声道音频，在这种情况下，它将两个立体声轨道合并为一个可通过两个耳塞播放的轨道。

Go to Settings > General > Accessibility.

转到设置>常规>可访问性。

Scroll down and under Hearing, toggle Mono Audio to on.

向下滚动并在“听力”下，将“单声道音频”切换为打开。

Now whenever you play audio, you’ll hear the exact same thing out of every speaker.

现在，无论何时播放音频，您都会从每个扬声器中听到完全相同的声音。

Image Credit: David Mulder/Flickr

图片来源： David Mulder / Flickr

翻译自: https://www.howtogeek.com/331264/how-to-switch-your-iphone-to-mono-audio-so-you-can-wear-one-earbud/

iphone音频输出