Up: [[Hearing]] Created: 2023-10-02 White noise is all audible frequencies and sounds like TV static Pink noise is a mix of frequencies, with reduced higher frequencies, with a sound closer to ocean waves or falling rain Brown noise sounds lower with a bit of a rumble, like a strong wind Blue is higher with a hissing quality, like water spraying from a hose Green noise is the background sound of nature Black noise is silence > [!user] Gretchen Rubin, *Life in Five Senses*, p. 88