When soundSplitter is active, the volume of NVDA cannot be changed

[paulber19]

Some add-ons like soundManager, NVDAExtensionGlobalPlugin, volumeAdjustment, allow modification of the NVDA volume.
But when soundSplitter is active, this is no longer possible.
In the "noWASAPI_preWaveOpen" function this is clearly announced:

All we care about is splitting sounds, so set volume to 100 percent always.

volume = 100
volume2 = int(0xFFFF * (volume / 100))

In order for other add-ons to continue to function normally when soundSplitter is active, this function should take the current volume into account.
This can perhaps be done like this:
from ctypes import wintypes
from ctypes import byref
curVolume = wintypes.DWORD(0)

get current volume

winmm.waveOutGetVolume(selfself._waveout, byref(curVolume))
curVolume = curVolume.value
volume2 = int(curVolume) if curVolume <= 0xffff else int(curVolume>> 16)
Please find a solution.