我通过3.5毫米插孔电缆将MacBook连接到主板中具有Realtek Audio（Windows）的Input Jack中的另一台计算机线。这使我能够使用一对连接到最后一辆PC的扬声器，并同时通过同一扬声器听到Mac和PC。
我曾经能够使用扬声器属性面板和取消静音后输入。这样，它使用直接监视，因此您不会在MacBook的播放中遇到任何延迟。
一段时间以前，驱动程序更新似乎已删除了输入的级别液位，静音切换：o
现在，为了实现同样的问题，我只剩下此选项，该选项在音频播放中引入延迟：
启用在后输入记录属性中聆听此设备。
那么还有另一种重新获得此功能的方法吗？
还有其他问题中的建议吗？
谢谢！
I connect a MacBook through a 3.5mm jack cable to another computer's line in input jack in the motherboard which has Realtek Audio (Windows). This enables me to use a pair of speakers connected to this last PC and hear both mac and pc through the same speakers simultaneously.
I used to be able to go the Speaker Properties panel and unmute the Rear Input. This way it uses direct monitoring so you don't experience any latency on the macbook's playback.
Some time ago a driver update seems to have removed the Level fader of the inputs together with its mute toggle :O
Now, to achieve the same, I'm only left with this option which introduces latency in the audio playback:
Enabling Listen to this device in the Rear input Recording properties.
So is there another way to regain this functionality?
Is there something like what's suggested in this other question?
Unmute audio input (microphone) in OSX programatically
Basically some command to unmute the direct monitoring of the Line In audio input on Windows, or maybe an app that controls the drivers?
Realtek audio console doesn't provide this option :(
Thanks!
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我只是遇到了同样的问题，但这不是因为驾驶员。罪魁祸首是新的Realtek音频控件，它已删除了音频监视级别的杠杆。您必须使用旧版本的Realtek控制面板才能使其正常工作。
例如，尝试下载此主板的音频驱动程序
解开它，并在Vista64文件夹下查找文件Ravcpl64.exe。
运行此功能，您将获得良好的旧控制面板！就像魅力一样。
我建议您在台式机上放置一个简流，以便于访问。
我只是这样做了，并卸载了糟透了的新控制面板。
我想知道为什么Realtek选择从其软件中删除功能，这真的很坏主意！
I just had the same problem, but it's not because of the driver. The culprit is the new realtek audio control which has removed the lever for audio monitoring level. You have to use an old version of realtek control panel to make it work.
For example try downloading audio drivers for this motherboard
https://www.asrock.com/mb/intel/Z97M%20Pro4/index.la.asp#Download
Unzip it and look for the file RAVCpl64.exe under the Vista64 folder.
Run this and you'll get the good old control panel back! Works like a charm.
I suggest you put a shorcut on your desktop for ease of access.
I just did this and uninstalled the new control panel which sucks.
I wonder why Realtek chose to remove functionality from their software, really bad idea!