⬜ White
Random signal with equal power per frequency. Sounds like TV static. Ideal for masking office chatter and environmental sounds.
🌸 Pink
Power decreases at 3 dB per octave. Matches the frequency profile of many natural sounds. Studies suggest it can improve sleep quality.
🟤 Brown
Power decreases at 6 dB per octave — a random walk signal. Deep, bass-heavy texture like a strong waterfall or heavy rain.