Not sure it has those specific features but you may want to check out Sound Control. Source: 11 months ago

SoundControl is exactly this and more: https://staticz.com/soundcontrol/. Source: about 1 year ago

Hey, bro, I think I've found a solution: I installed the SoundControl software, enabled the "Force Soft Volume Control" option. Yay, the volume is now adjustable! Hope this helps you too! Screenshot. Source: about 1 year ago

I haven’t installed it yet, I’ve got a few days off and don’t want to waste the trial period. This is the one I bookmarked from the ones I found: https://staticz.com/soundcontrol/. Source: about 1 year ago

IDK whether a 3rd party software audio mixer would help; you may download a trial here: https://staticz.com/soundcontrol/. Source: over 1 year ago

a lot of the recommendations here are time consuming. if you do control4 or something similar, it's not time consuming but the integrator that you hav to purchase from will more than likely not give you access to your system. you could do c4 with josh.ai on top of it. or just josh.ai on it's own but then you lose pool control but everything else you are asking for. you'll also have to play in their sandbox of... Source: about 1 year ago

The hardware is from josh.ai, it's a beta test thing for now. Source: about 1 year ago

If you have more money than time, look into josh.ai. Source: over 1 year ago

A voice-activated home automation system that works similar to Alexa but has no advertising has been available for over six years. That is the Josh.ai system and I bet there aren't too many owners that are unhappy with that system. And there are still a lot of things that Alexa can do that josh.ai can't do. Source: over 1 year ago

Home has C4 and Crestron home also with josh.ai on top of it. Source: about 2 years ago