EarTrumpet - Volume Control for Windows
Meditation Studio - Curated collections of guided meditations
Volume2 - Volume2 is an advanced Windows audio mixer, a complete replacement for the standard Volume Control.
Headspace - Meditation made simple. Brilliant things happen in calm minds.
Sound Control - App-specific volume control
Medito - 100% Free Meditation App that will improve your Mental wellbeing with the help of Guided Meditations, Breathing Exercises, Mindfulness Practices, Relaxing Sounds, and more.