Volumouse
From authors website:
17 Alternatives To Volumouse
3RVX
3RVX is a skinnable volume display and controller.
Audio Sliders
Volume Control replacement that is five times smaller than its Windows counterpart.
Background Music
Control the audio on your Mac apps from the menu bar
ControllerMate
Dec 2, 2017 - ControllerMate building blocks are triggered by controls on devices or MIDI messages. Each type of building block performs a small task. Building blocks can be combined to perform complex functions.
EarTrumpet
Volume Control for Windows
Fugue
Free stock music for your videos, games and UI
Jukedeck
Create unique music for your videos in seconds.
Power mixer
Power Mixer is a complete Windows volume control replacement.
QasMixer
QasMixer is a desktop mixer application for ALSA’s “Simple Mixer Interface”.
Sound Control
App-specific volume control
Sound Lock
Your one-stop IT solution
UsMeU
IBM Watson psychological analysis of Twitter profiles
Volti
Volti is an GTK+ application for controlling audio volume from system tray/notification area.
Volume Icon
Volume Icon aims to be a lightweight volume control that sits in your systray.
Volume Scroll
Volume Scroll lets you control your main volume by hovering with your mouse cursor over the top…
Volwheel
VolWheel is a little application which lets you control the sound volume easily through a tray icon…
WizMouse
WizMouse makes your mouse wheel scroll the window under the mouse even if it’s not active. You no longer have to click a window to scroll it.