White noise or motivational sounds in space--anyone?

Has anyone used background sounds like Brain.fm or others like these listed here? http://cleverupdate.com/lifestyle/best-white-noise-websites-to-boost-your-productivity/
in place of music in coworking spaces?

I’ve been using Brain.fm extensively almost every time when co-working. The focus mode works very well for me, even after years of using it (they introduced a bunch of new tracks/songs lately).

We do at DeskLodge in Bristol, UK

We create custom, themed sounds using Ambient-Mixer.com on a USB stick - using an amp with USB