Hi Adam, I love that you did an RCT. What journal did this get published in?<p>I&#x27;ve been using Brain.FM since yesterday, first with speakers in another room, then with speakers in my office and separated by about 2m, and finally today with Bose noise canceling headphones (I can kind of hear the 3d effect, but it is vastly outweighed by my ears overheating in the headphones). I liked #2 the best; some tracks the 3d effect was pronounced. I tend to like the percussion tracks a lot more --- going back to the webpage to skip etc is a pain. Why not provide a list of effects that you can select from and if I hate violin (bad example) then I can exclude tracks that use it.<p>In the past I&#x27;ve used rain &#x2F; thunderstorm recordings. I have a Marpac noise machine with a actual mechanical fan inside. I found that machine great for sleep - but then I had a baby and she confiscated it for her own use :-)