For anyone that comes by this later, I had to disable the "Save audio" option under the audio settings for this to work. I also had to use one of the other audio settings. Mine was:
Further to Jason Wisely's answer, I used the following on VLC version 3.0.6 and it worked to play a song with VLC at 35% volume. The device really matters because neither directx of waveout worked for me.
However, it's somewhat moot because your system volume will determine the apparent volume anyway. So to control the system volume I downloaded nircmd and put it into system32. nircmd uses 65535 as 100% volume, so a 50% volume is 65535 ÷ 2 = 32767.5, and I round to 32767. After that, the following is how I keep a consistent volume of 14% system volume and 80% VLC volume when starting VLC:
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对于后来遇到此问题的任何人，我必须禁用音频设置下的“保存音频”选项才能正常工作。我还必须使用其他音频设置之一。我的是：
其他选择是
For anyone that comes by this later, I had to disable the "Save audio" option under the audio settings for this to work. I also had to use one of the other audio settings. Mine was:
Other options are
似乎是一个已知的错误。 音量选项没有任何效果
Seems to be a known bug. Volume option doesn't have any effect
根据 Jason Wisely 的回答，我在 VLC 版本 3.0.6 上使用了以下内容，并且可以在以下位置使用 VLC 播放歌曲： 35% 体积。该设备确实很重要，因为 waveout 的 directx 都不适合我。
然而，这有点没有实际意义，因为无论如何，您的系统音量将决定表观音量。因此，为了控制系统音量，我下载了 nircmd 并将其放入 system32 中。 nircmd 使用 65535 作为 100% 音量，因此 50% 音量为 65535 ÷ 2 = 32767.5，我四舍五入为 32767。之后，以下是我在启动时如何保持 14% 系统音量和 80% VLC 音量一致可见光通信：
Further to Jason Wisely's answer, I used the following on VLC version 3.0.6 and it worked to play a song with VLC at 35% volume. The device really matters because neither directx of waveout worked for me.
However, it's somewhat moot because your system volume will determine the apparent volume anyway. So to control the system volume I downloaded nircmd and put it into system32. nircmd uses 65535 as 100% volume, so a 50% volume is 65535 ÷ 2 = 32767.5, and I round to 32767. After that, the following is how I keep a consistent volume of 14% system volume and 80% VLC volume when starting VLC:
来自文档：
您是否尝试过使用除 0 之外的任何其他值？其他文件（来自与您尝试过的来源不同的来源）怎么样？
尝试使用非常详细的 (
-vv) 选项，看看它是否能告诉您任何信息。From the documentation:
Have you tried using any other values besides 0? What about other files (from a source different from the ones you've tried)?
Try using the very verbose (
-vv) option to see if it tells you anything.