Audio Distortion Issue with Fullscreen Apps Win 11

,

So I’m having an issue with Windows 11 + Voicemeeter + Cantabile 4.0.4322 when you have Cantabile 4 window opened, audio (ex. microphone) runs smoothly, clean without issues. As soon as I open another program Fullscreen (ex. Browser) audio becomes distorted, static like CPU is used to the max. Audio is unclear, glitchy, distorted. But if I make program window Windowed aka smaller the audio becomes normal again. Never happened in Windows 10 that I can guarantee. Any ideas?

I saw something similar on the Voicemeeter Discord server.

Quote from that post:

Just a quick PSA, if you use the Insert Virtual ASIO driver for connecting to Cantabile or similar, and you experience audio distortions when the window is minimized, but not when it’s in focus , and you are on Windows 11, then the reason is very likely because of Windows assigning the process a lower QoS level. I played around a bit with the related API and I found that disabling PROCESS_POWER_THROTTLING_IGNORE_TIMER_RESOLUTION for the process (in my case Cantabile) solves this particular problem. From the docs:

When a process opts into enabling PROCESS_POWER_THROTTLING_IGNORE_TIMER_RESOLUTION, any current timer resolution requests made by the process will be ignored. Timers belonging to the process are no longer guaranteed to expire with higher timer resolution, which can improve power efficiency. After explicitly disabling PROCESS_POWER_THROTTLING_IGNORE_TIMER_RESOLUTION, the system remembers and honors any previous timer resolution request by the process. By default in Windows 11 if a window owning process becomes fully occluded, minimized, or otherwise non-visible to the end user, and non-audible, Windows may automatically ignore the timer resolution request and thus does not guarantee a higher resolution than the default system resolution.

Apparently a powercfg command can help.

powercfg /powerthrottling disable /path "C:\Program Files\Topten Software\Cantabile 4.0\Cantabile.exe"

1 Like

Well.. It actually worked. That powercfg command did it. No buzzing, static sound when opening and viewing other programs in Fullscreen. Thank you, kindly. Thank you.

1 Like