Multi Volume Controller

Control the volume of multiple apps with a single Stream Deck+ dial.

Multi Volume Controller lets you assign one or more Windows applications to a single Stream Deck+ dial, so one dial can raise or lower the volume of several programs together — for example, group Chrome, Plex, and VLC under one "Media" dial, or set up separate dials for your game, Discord, and Spotify.

How it works:

Rotate the dial to adjust volume in real time, using each per-process audio session (via Windows' own per-app volume mixer — no system-wide volume changes).

Press or touch the dial to instantly mute/unmute, and it remembers your previous volume when you unmute.

can also be configured to send play pause instead if you want to use on media controls.

Assign multiple apps to one dial: if more than one of the assigned apps is running at the same time, The dial will control all of them at once

The on-device display shows the actual icon of the app currently controlled, extracted automatically from the running process, plus a live volume bar. (will show highest icon in priority)

The Property Inspector app picker shows every app currently producing audio, with icons, and lets you pre-select apps that aren't running yet (e.g. a game you haven't launched) so the dial is ready before you open it.

Adjustable step size so each rotation click can be fine (1%) or coarse (10%), to match how precisely you want to ride the volume.

Works with apps that are difficult to read icons/session info from normally (e.g. some anti-cheat-protected games), so it isn't limited to well-behaved apps.

What's included:

One Encoder (dial) action: "Multi Volume Dial"

Per-dial configuration for the following:

step size

muted/inactive-app display or Play pause

an ordered list of one or more target applications

checkbox to show apps that the plugin has seen in the past. or just show running applications

Automatic, cached per-app icon extraction — no manual icon setup required

https://www.youtube.com/shorts/9YI868mmjEQ

improved play pause for multiple apps.