你有没有想过是否可以通过电脑的扬声器和耳机(headphones)播放相同的声音？如何通过耳机和扬声器同时播放两个不同的音频流？

这两种情况在Windows 10中都是可能的，而且比您想象的要容易。但首先，你为什么要这样做？

实际上，通过两个或多个不同的播放设备同时播放相同或不同的音频流，实际上有很多不同的用例。如果您只是将其视为控制多个输出的播放，它可能更有意义。不一定只是耳机和扬声器，而是计算机可以访问的任何音频输出设备。以下是我们可以想到的这种技术的一些很酷的用途。

我们的读者是一群富有想象力的人，您可能已经为自己的需求考虑了一些很酷的用途。随时(Feel)在评论中分享它们！

在我们深入了解如何通过耳机和扬声器同时播放声音之前，有必要简要解释一下声音设备在Windows 10中的工作原理。

每个声音设备都在Windows 10中注册为不同的音频目标。你可能认为只有声卡才是真正的音频设备，但对于Windows ，声卡的音频输出和(Windows)蓝牙(Bluetooth)耳机没有区别。

HDMI设备（例如您的GPU）也是音频设备，因为HDMI可以传输音频数据以及视频。音频(Audio)有时不起作用，因为Windows选择显卡上的HDMI 输出(HDMI)作为音频设备，但大多数计算机显示器没有扬声器！

音频设备也是动态的。当您插入USB耳机时，一个新的音频设备将在几秒钟内在Windows中注册。该音频根本不会通过您的声卡。耳机实际上内置了一个小型声卡设备（“DAC”或数模转换器）。

这意味着，假设您的计算机有空闲的CPU能力，您可以独立地将音频流发送到这些设备中的每一个。至少在理论上。要使其正常工作，您还需要利用已添加到Windows 10的功能。

有问题的功能可让您将特定应用程序分配给某些声音输出。通过这种方式，您可以让一个应用程序通过耳机播放声音，而另一个应用程序通过扬声器播放。

这也很容易！这是如何做到的：

您应该可以通过所需的一组扬声器听到该应用程序的声音。您可能需要停止并重新开始播放才能使其生效。另外，如果您在列表中没有看到要路由的应用程序，则需要先在其中开始音频播放。例如，我们必须先在Google Chrome中启动一个(Google Chrome)YouTube视频，然后它才会出现在列表中。

正确分配所有应用程序后，您可以关闭Window。如果要撤消所有路由，只需选择“重置(Reset)”按钮即可返回默认值。

现在您知道如何让不同的应用程序通过每组扬声器或耳机播放音频，但如果您想同时通过扬声器和耳机播放完全相同的音频怎么办？录音室中的音响工程师或舞台上的表演者可能会使用这种设置来确保输出到扬声器的立体声混音是正确的。

这在Windows 10(Windows 10)中也很容易做到：

1. 右键单击​​通知托盘中的扬声器图标，然后选择(speaker icon)声音(Sounds)

2.选择录制选项卡(recording tab)

3. 寻找Stereo Mix，右键单击它并选择启用( Enable)（如果尚未启用）。

4. 再次右键单击Stereo Mix并选择属性(properties)

5. 选择收听选项卡(Listen tab)

6.检查听这个设备(Listen to this device)

7. 在通过此设备播放的下拉菜单(playback through this device dropdown)中，选择您的耳机(headphones)

8. 选择确定(OK)

现在，通过您的扬声器播放的任何内容也将通过您的耳机播放。请注意，根据您的硬件，两个音频流之间可能会有轻微的延迟。

以上所有内容都涉及软件设置和设备的一些轻微的技术混乱，但如果您只是想要一种同时使用扬声器和耳机的方法，以 100% 的可靠性播放完全相同的音频，并且不会乱用软件？答案超级简单。您只需要一个耳机(s)分离(headphone )器(plitter)！

这些分离器与将两个耳机连接到同一个音频插孔时使用的分离器完全相同。人们一直在使用它们，例如，两个人想在飞机上看同一部电影。

这里唯一的区别是您将一组扬声器插入分配器上的一个插孔，另一个插入耳机。而不是两副耳机。

当您想使用耳机时，只需将扬声器上的音量旋钮调低至零，然后戴上耳机。如果您的耳机具有嵌入式音量控制，您可以在那里执行相同的操作。这可能是复制音频源的最简单方法。特别是在只有一个耳机输出的笔记本电脑上。

现在，当您在计算机中播放任何类型的声音时，您可以完全控制音频的去向。现代计算机在典型使用过程中拥有如此多的马力，您不妨用它做一些有趣的事情。 

如果您的家庭娱乐 PC 同时连接到远程蓝牙(Bluetooth)和本地有线音频源，这也很有用。享受您的新音频选项！

Havе you ever wondered if it’s possible to play the same sounds through both yоur computer’s speakers and a pair оf headphones? What about playing two different audio streams through your headphones and speakers at the same time?

Both of these scenarios are possible in Windows 10 and it’s easier than you think. But first, why would you even want to do this?

There are actually more than a few different use cases for playing the same or different audio streams through two or more different playback devices at the same time. It might make more sense if you simply think of it as controlling playback over multiple outputs. Not necessarily just headphones and speakers, but any audio output device the computer has access to. Here are a few cool uses we can think of for this technique.

Our readers are an imaginative bunch, and you probably already have some cool uses in mind for your own needs. Feel free to share them in the comments!

Before we get into the nuts and bolts of how to achieve playing sound through your headphones and speakers at the same time, it’s worth briefly explaining how sound devices work in Windows 10.

Each sound device is registered in Windows 10 as a distinct target for audio. You might think that only the sound card really counts as an audio device, but to Windows there’s no difference between your sound card’s audio output and your Bluetooth headphones.

HDMI devices, such as your GPU, are also audio devices, because HDMI can carry audio data as well as video. Audio sometimes doesn’t work because Windows chooses the HDMI-out on the graphics card as the audio device, but most computer monitors don’t have speakers!

Audio devices are also dynamic. When you plug in USB headphones, a new audio device will be registered in Windows within seconds.That audio doesn’t pass through your soundcard at all. The headphones actually have a small sound card device (a “DAC” or digital-to-analogue converter) built into it.

This means that, assuming your computer has the CPU power to spare, you can send audio streams to each one of these devices independently. At least in theory. To make it work, you also need to take advantage of a feature that’s been added to Windows 10.

The feature in question lets you assign specific applications to certain sound outputs. In this way, you can make one app play its sound through your headphones, while another plays through your speakers.

This is also pretty easy! Here’s how to do it:

You should hear that application’s sound coming through the set of speakers you want. You might need to stop and restart playback for this to take effect. Also, if you don’t see the app you want to route in the list, you need to start audio playback in it first. For example, we had to start a YouTube video in Google Chrome before it appeared on the list.

Once all your apps are properly assigned, you can close the Window. If you want to undo all the routing, simply select the Reset button to go back to default.

Now you know how to get different apps to play audio through each set of speakers or headphones, but what if you wanted to have the exact same audio playing over your speakers and your headphones at the same time? This is the sort of setup that a sound engineer in a studio or a performer on stage might use to make sure that the stereo mix going out to the speakers is correct.

This is also pretty easy to do in Windows 10:

1. Right-click on the speaker icon in the notification tray, then select Sounds

2. Select the recording tab

3. Look for Stereo Mix, right-click on it and select Enable if it isn’t already.

4. Right-click on Stereo Mix again and select properties

5. Select the Listen tab

6. Check Listen to this device

7. Under the playback through this device dropdown, select your headphones

8. Select OK

Now whatever is playing through your speakers will also play through your headphones. Just be aware that, depending on your hardware, there may be a slight delay between the two audio streams.

All of the above involves some mildly technical messing about with software settings and devices, but what if you just wanted a way to use both your speakers and headphones at the same time, playing exactly the same audio with 100% reliability and no messing about with software? The answer is super-simple. All you need is a headphone splitter!

These are exactly the same splitters you would use to connect two headphones to the same audio jack. People use them all the time when, for example, two people want to watch the same movie on an airplane.

The only difference here is that you’re plugging a set of speakers into one jack on the splitter and headphones in the other. Instead of two pairs of headphones.

When you want to use headphones, simply turn the volume knob on your speakers down to zero and put on your headphones. If your headphones have in-line volume controls, you can do the same there. This is probably the easiest way to duplicate an audio source. Especially on a laptop that only has a single headphone output.

Now you can take full control over where your audio goes when you’re playing back sound of any kind in your computer. Modern computers have so much horsepower to spare during typical use that you might as well do something interesting with it. 

This is also useful if you have a home entertainment PC hooked up to both remote Bluetooth and local wired audio sources. Enjoy your new audio options!