NK2 Tray isn't a solution for every volume-related problem that comes along. In this case, some people may already own a Stream Deck and are not interested in buying additional hardware. This document describes, in brief, how someone with a Stream Deck can set up per-application volume control. It's a bit clunky, but it works!
- Go to https://www.nirsoft.net/utils/nircmd.html and scroll to the bottom to download NirCmd (probably the 64 bit version)
- Extract your NirCmd download and right-click nircmd.exe and select
Run as administrator - When it opens, it should pop up a dialog box. Click
Copy To Windows Directory
- In the Stream Deck software go to the
Systemcategory on the right and dragOpento an unused button - Add a title that describes your action, in my case
Chrome🡓 - In the App / File section, enter something like
NirCmd.exe changeappvolume chrome.exe -0.1That's it! You now have a button that decreases Chrome's volume by 10%.
You probably want to be able to increase volume, too! You can repeat step 3 above but enter NirCmd.exe changeappvolume chrome.exe +0.1 to increase(🡑) volume.
You can change the app name to whatever you like, and do a ton more with NirCmd. There are tons of examples on the NirCmd page, and also a nice blog post describing what we're doing above.