请在系统设置中为输入比率_如何在OS X中为单个音频设备和声音效果调整音量设置...
请在系统设置中为输入比率
If you’ve ever been showing a presentation or a video, you know how embarrassing it can be when system sounds such as alerts, errors, and notifications interrupt your audio, especially when you’re projecting to a PA system or loudspeakers.
如果您一直在显示演示文稿或视频，您就会知道当警报，错误和通知之类的系统声音中断您的音频时，尤其是当您投影到PA系统或扬声器时，这种尴尬是多么的尴尬。
In OS X, there’s a couple of cool little options that you can apply to your audio settings so that, if you are say, listening to your music while you clean, or showing a movie on your big TV, then you won’t be interrupted by Frog, Funk, Bottle, or any of the other system alerts.
在OS X中，您可以将几个很酷的小选项应用到音频设置中，这样一来，如果说清洁时听音乐或在大电视上放映电影，就不会被Frog，Funk，Bottle或其他任何系统警报中断。
There are three parts to the Sound preferences, “Input”, “Output”, and “Sound Effects”. We want to talk about each one in their own right, starting with the input preferences.
声音首选项分为三个部分：“输入”，“输出”和“声音效果”。 我们要从输入首选项开始，逐一讨论每个人。
输入首选项 (Input Preferences)
First open the Sound preferences per your preferred method, usually by clicking open the “System Preferences -> Sound” or using Spotlight and typing “sound”.
首先按照您喜欢的方法打开“声音”偏好设置，通常是单击“系统偏好设置->声音”或使用Spotlight并键入“声音”。
With the Sound preferences now open, let’s talk about each tab, starting with the “Input” preferences since they’re the most straightforward.
现在打开了“声音”首选项，让我们讨论每个选项卡，从“输入”首选项开始，因为它们是最简单的。
In our example, we’re using a Macbook Air, which doesn’t come with a ton of input options. But if we’re using a USB microphone or in this case a Bluetooth speaker with a microphone, we can click on each input device and change them as needed.
在我们的示例中，我们使用的是Macbook Air，它没有大量的输入选项。 但是，如果我们使用的是USB麦克风，或者使用带麦克风的蓝牙扬声器，则可以单击每个输入设备并根据需要进行更改。
For each input device, you can choose the volume level, such as if you have microphones of varying sensitivity or placement.
对于每个输入设备，您可以选择音量级别，例如，如果您的麦克风的灵敏度或位置不同。
Making adjustments to your input devices will probably be unnecessary, but if your coworkers or long distance family members are having a hard time hearing you (or you’re coming through too loudly), then this is how fix it.
可能没有必要对输入设备进行调整，但是如果您的同事或长途家庭成员很难听到您的声音(或者您听到的声音太大)，那么这就是解决方法。
输出首选项 (Output Preferences)
Clicking one tab to the left gives us our “Output” preferences. Note, there’s a persistent “Output volume” slider at the bottom of this preference pane. This is important because it actually applies to each individual output device.
单击左侧的一个选项卡，我们可以选择“输出”。 请注意，此首选项窗格底部有一个永久的“输出音量”滑块。 这很重要，因为它实际上适用于每个单独的输出设备。
Speaking of those devices, everything that our Mac can possibly output to is listed here, which includes the internal speakers, Bluetooth speakers, HDMI, and AirPlay devices. Just like with our input devices, if you click on another output device, the audio will be played through it.
说到这些设备，此处列出了Mac可能输出到的所有设备，包括内部扬声器，蓝牙扬声器，HDMI和AirPlay设备。 就像我们的输入设备一样，如果您单击其他输出设备，则音频将通过该设备播放。
Another neat trick is the aforementioned volume slider. Volume levels and mute can be assigned to each output device. In this example, we output to our little Braven BRV-X Bluetooth speaker and the sound is set to medium, but muted.
另一个巧妙的技巧是上述音量滑块。 可以为每个输出设备分配音量和静音。 在此示例中，我们将输出到小型Braven BRV-X蓝牙扬声器 ，并且声音设置为中等，但被静音。
Clicking over to our Bluetooth receiver, which is connected to larger desktop speakers, we see the volume controls retain their last state for that output device.
单击连接到较大台式扬声器的蓝牙接收器，我们将看到音量控件保持该输出设备的最后状态。
Remember this little feature because it will come in handy, not only for protecting your ears and equipment from sudden loud bursts of music, but also with regard to sound effects, which we’ll talk about now.
请记住此小功能，因为它会派上用场，不仅可以保护您的耳朵和设备免遭突然的音乐突然响起，而且还可以保护音效，我们将在下文中进行讨论。
声音效果首选项 (Sound Effects Preferences)
OS X’s “Sound Effects” preferences brings us back to our original scenario, where we want to output sound to one device, but not system alerts and alarms.
OS X的“声音效果”首选项使我们回到了最初的情况，即我们希望将声音输出到一台设备，而不是系统警报和警报。
The first thing you can do is simply turn off sound effects or turn them down to a point where they won’t bother you.
您可以做的第一件事就是简单地关闭声音效果或将它们调低到不会打扰您的程度。
But you can also route them to a different device. By default they should always play on your computer’s internal speakers or to your Mac desktop’s external speakers, if applicable.
但是您也可以将它们路由到其他设备。 默认情况下，它们应始终在计算机的内部扬声器或Mac桌面的外部扬声器(如果适用)上播放。
In most situations when you’re outputting audio to an external device, you may not even be able to hear sound effects on the internal speakers however, remember instead of disabling these sounds, you could always just mute your internal speakers.
在大多数情况下，当您将音频输出到外部设备时，您甚至可能无法在内置扬声器上听到声音效果，但是请记住，不要禁用这些声音，而可以始终使内置扬声器静音。
温馨提示：如何通过按键和点击更改输出设备 (Bonus Tip: How to Change Your Output Device with a Key and Click)
All this wonderful and all, but it really doesn’t make sense to have to keep digging into Sound preferences to change your audio outputs and inputs. Luckily, you don’t have to because of our old friend, the “Option” key.
所有这些奇妙的一切，但必须继续挖掘“声音”偏好设置以更改音频输出和输入确实没有任何意义。 幸运的是，您不必因为我们的老朋友“ Option”键而不得不这样做。
If you have the menu bar volume control enabled, then when you click it, it will show you the menu slider. It’s kind of useful but we normally use the media keys on our keyboard.
如果启用了菜单栏音量控制，则单击它时，它将显示菜单滑块。 这很有用，但是我们通常使用键盘上的媒体键。
When you hold the “Option” key and click on the volume control, you’re instead shown both your output and input devices. You can also then quickly access the Sound preferences this way too.
当您按住“ Option”键并单击音量控件时，将同时显示输出和输入设备。 然后，您也可以通过这种方式快速访问“声音”首选项。
If you’re not keen on the idea of always holding down the “Option” key, there are add-on utility apps, which will place a dedicated menu on the menu bar. In this screenshot, we’ve installed a simple, free app from the App Store called SoundOut.
如果您不希望始终按住“ Option”键，可以使用附加实用程序， 它将在菜单栏上放置一个专用菜单 。 在此屏幕快照中，我们从App Store安装了一个简单的免费应用程序， 名为SoundOut 。
It doesn’t feature any of our input devices like the “Option” key method, and it’s not specific about what each output is, but if you change devices a lot, and don’t want to hold the “Option” key every single time, then this might be a good solution.
它没有我们的任何输入设备(如“ Option”键方法)功能，并且没有具体说明每个输出是什么，但是如果您对设备进行了大量更改，并且不想每次都按住“ Option”键时间，那么这可能是一个很好的解决方案。
Before we conclude, we should mention that if you attach speakers to your headphone jack, then your output option will change from your internal speakers to headphones.
在总结之前，我们应该提到，如果将扬声器连接到耳机插Kong，则输出选项将从内部扬声器变为耳机。
Headphones and internal speakers are basically the same thing. It’s just something to bear in mind when making changes to audio outputs and sound effects.
耳机和内置扬声器基本上是一回事。 更改音频输出和声音效果时，请记住这一点。
Such configurability is fantastic for Mac users who have several different audio devices, because there’s always that time when you connect a Bluetooth speakers and your music begins playing through it at high volume, or you’re showing your favorites home videos and you’re suddenly jarred awake by “Sosumi.”
对于具有多种不同音频设备的Mac用户而言，这种可配置性是极好的，因为总有一次您连接蓝牙扬声器并且音乐开始以高音量播放，或者您正在显示自己喜欢的家庭视频时， 突然之间被“纯水”惊醒的
Thus, you can easily maintain separate audio profiles for each device while eliminating sudden loud interruptions. If you have anything you would like to add, please leave your feedback in our discussion forum.
因此，您可以轻松维护每个设备的单独音频配置文件，同时消除突然的大声干扰。 如果您有任何要添加的内容，请将您的反馈意见留在我们的论坛中。
请在系统设置中为输入比率