SoundBubble free

Create pleasing natural soundscapes for blocking irritating extraneous noise, and / or to help with concentration, meditation, relaxation and sleep. Can also be used to mask mild Tinnitus. Free fully functional demo - try before you buy.

• Therapeutic and natural sound generator

• High quality immersive 3D stereo sound (use headphones or good quality loudspeakers for best results)

• Infinitely variable output that never repeats

• No media streaming - works offline

• Once downloaded no internet connection required

• Easy to use and configure

• Change background, add or remove foreground sounds

• Individual volume, balance, frequency or interval controls

• Create save and duplicate presets

• Includes White, Pink, Brown Noise generator

• Employs Android background service

You could even turn an old unused Android mobile into a permanent soundscape generator.