Darker than brown
Brown noise already leans low. Deep Brown runs it through a steep filter at about 220 Hz, so nearly all the hiss is gone and the sound is almost pure rumble.
People who find even brown noise a little bright tend to like this one. Because it's so low, a phone speaker plays it quieter than it is; headphones or a small speaker bring it out.
Part of Deeper Nights
Deep Brown is in Deeper Nights with Grey Noise and Metal Fan, included with Sleepy Noise Lifetime. Free users get regular Brown Noise, which plays in full on this site. This page plays a 60-second preview.
Frequently asked questions
What's the difference between brown noise and deep brown noise?
Deep brown is brown noise with the upper frequencies filtered out, so it's an even lower rumble with almost no hiss.
Is regular brown noise free?
Yes. Brown Noise is one of the free core sounds in Sleepy Noise and plays in full on this site.
