KeyRoutines
StepFreeaudio.appVolume

Set a single app's volume automatically on Windows 11

App volume sets how loud one program is, separate from the master volume. It is handy for keeping music low while you talk, or bringing a game's sound back up after a call.

How it works

  • Choose the app, then set it to a level or raise or lower it by an amount.
  • Levels run from 0 to 1, so 0.4 means 40 percent of that app's slider in the Volume mixer.
  • Raising and lowering start from the level you currently hear and stop at silent and full.
  • The step outputs the new level and the one before, so a later step can put it back.
  • If the app hasn't played any sound yet, Windows has no slider for it and the step says so.

Routines that use it

Duck music for meetings

When Mic or camera in use fires, lower Spotify to 0.15 with App volume, and raise it back when the trigger reports the mic is free.

Evening listening level

Use At a time at 22:00 to set your music player to a quieter level so late-night sessions don't get loud.

Balance a game and voice chat

After Game started fires, set the game to 0.6 so Discord voices stay easy to hear over it.

Settings

SettingWhat it does
AppThe app: Spotify, Discord, a game, a browser.
ChangeSet it to a level, or raise or lower it by an amount.
Level0 to 1 (0.4 is 40 %).

Good to know

  • Only apps that have played sound since they started have a volume level to change.

Questions

Can I make Spotify quieter without changing the main volume?
Yes. App volume changes only the chosen app's own level, the same slider you see in the Volume mixer. Your master volume and other apps stay as they are.
Does it work with browsers that play sound in several tabs?
It sets every audio session the browser has, including separate browser processes. So all of the browser's sound moves together.

Pairs well with

Build this routine in KeyRoutines

Free from the Microsoft Store for Windows 11 and 10. Pro is a one-time upgrade.