The new Siri Remote that comes with the Apple TV 4 is definitely a step up from the previous generation, complete with a trackpad and motion tracking. The remote also comes with dedicated volume buttons that allow you to control your TV, soundbar, or audio receiver’s volume–no need for a second remote.
Apple TV 4随附的新Siri Remote绝对比上一代产品有了一个进步，它具有触控板和运动跟踪功能。 遥控器还带有专用的音量按钮，可让您控制电视，条形音箱或音频接收器的音量-无需第二个遥控器。
These dedicated volume buttons don’t just work automatically, though. You have to manually go into the settings and have the Apple TV remote learn the volume commands of your TV, soundbar, or audio receiver. Luckily, the process is pretty straightforward…as long as you know what you’re looking for.
但是，这些专用的音量按钮不仅会自动工作。 您必须手动进入设置，并让Apple TV遥控器学习电视，条形音箱或音频接收器的音量命令。 幸运的是，该过程非常简单……只要您知道要查找的内容即可。
To begin, open up the Settings app from your Apple TV’s home screen.
首先，从Apple TV的主屏幕打开“设置”应用程序。
Select “Remotes and Devices” from the list.
从列表中选择“远程和设备”。
Scroll down and click on “Volume Control”.
向下滚动并单击“音量控制”。
If you see a setting called “TV via IR”, then your television supports HDMI-CEC, and all you need to do is select this option. Your Apple TV remote will then control your television’s volume.
如果看到名为“通过红外电视”的设置，则您的电视支持HDMI-CEC ，您只需选择此选项即可。 然后，您的Apple TV遥控器将控制电视的音量。
If you don’t have this option, however, you’ll need to do a bit more setup. Click on “Learn New Device”.
但是，如果没有此选项，则需要进行更多设置。 点击“学习新设备”。
Pick up the remote for your television, soundbar, or audio receiver. Point it at the Apple TV, then press and hold the Volume Up button until the progress bar fills up on the screen.
拿起电视，条形音箱或音频接收器的遥控器。 将其指向Apple TV，然后按住“提高音量”按钮，直到进度条在屏幕上充满为止。
Next, press and hold the Volume Down button until the progress fills up.
接下来，按住“降低音量”按钮，直到进度填满。
Give the custom volume control a name. For instance, I just named it “Soundbar” since I want the Apple TV remote to control the volume on my TV’s soundbar. Click “Done” when you’re finished.
为自定义音量控件命名。 例如，由于我希望Apple TV遥控器控制电视的条形音箱上的音量，所以我将其命名为“条形音箱”。 完成后，单击“完成”。
Hit “OK”.
点击“确定”。
The new setting will appear in the list as “(Your custom name) via IR”.
新设置将在列表中显示为“(通过IR的(您的自定义名称)”)。
That’s all there is to it! When you now go to click the volume buttons on your Apple TV remote, it’ll change the volume on your TV so that you don’t have to switch back and forth between remotes.
这里的所有都是它的！ 现在，当您单击Apple TV遥控器上的音量按钮时，它将更改电视上的音量，因此您不必在遥控器之间来回切换。
翻译自: https://www.howtogeek.com/263008/how-to-change-the-volume-of-your-tv-using-the-apple-tv-siri-remote/