Audio sources default / startup volume

Is there a way to set the audio sources default / startup volumes? Some of my audio sources come up with their level set to my output device's level, rather than a value that I would prefer to be able to set.

It appears the root cause for the levels doing is a Windows fault (so I'm probably looking for a work-around):

Faulting application name: svchost.exe_Audiosrv, version: 10.0.15063.0, time stamp: 0x02799ef5
Faulting module name: ntdll.dll, version: 10.0.15063.447, time stamp: 0xa329d3a8
Exception code: 0xc000000d
Fault offset: 0x0000000000105a50
Faulting process id: 0x39f4
Faulting application start time: 0x01d3233a6cf0841e
Faulting application path: C:\WINDOWS\System32\svchost.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll
Report Id: c415a726-5e8d-4316-8057-aeb606b6a5cd
Faulting package full name:
Faulting package-relative application ID:

I'm running Windows 10 version 1703 OS build 15063.540, and all of my audio drivers are up to date.

The audio is integrated on my Asus M5A99FX Pro R2.0 motherboard and is listed as Realtek ALC 892 8-channel high definition audio CODEC. The problem occurs randomly, but I think I sometimes see a correlation with opening a new browser tab. I run both Firefox and Chrome concurrently, and both are up-to-date. The last time it seemed to have occurred with opening a new tab in Firefox, but as I said, it often happens randomly. Event viewer is not logging any Firefox or Chrome errors.

From the crash information I posted above, it appears that it is a Windows fault rather than an application as suggested by the error fault information, which is why I'm looking for a possible work around. Event viewer show the earliest error occurred on 4/14/2017 and was uploaded via error reporting to Microsoft. I was hoping to find a way to keep the affected input channels from coming back on to the (loud!) speaker level I use for other other audio input sources. The volume mixer's channels come back on to the speaker level setting, not to the top end of the channel's volume slider. Not all slider volumes are affected when this happens. The line in channel always does it, but system sounds and email (Thunderbird) channels are usually not affected.

I went in search of updated drivers, even though Windows said I had best ones installed. I found and installed Realtek driver version 6.0.1.8186 dated 6/14/2017 three days ago. So far it hasn't crashed, but it still would be nice to find a way to set the default volumes without resorting to SoundVolumeView from NirSoft. If you're not aware, SoundVolumeView is a nifty tool that gives significant insight into many aspects of Windows audio.