DFX Audio Enhancer - Formerly known as DFX Audio Enhancer, FxSound Enhancer instantly boosts the sound quality of the music on your PC.
SoliCall Pro - Removes noise & echo from any VoIP call. Can also be used for call recording.
Equalizer APO - A system-wide equalizer for Windows 7 / 8 / 8.1 / 10 with channel remapping/copying capabilities
NVIDIA Broadcast - The NVIDIA Broadcast app transforms your gaming space into a home studio. Take your livestreams, voice chats, and video conference calls to the next level with AI-enhanced voice and video.
Equalizer Pie - Equalizer Pie is a free audio manipulation application for OS X.
Moszen - Moszen is a free web service that provides ambient sounds from natural environments to help you relax and avoid stress in your daily life.