White Noise Generator

Online White Noise Machine

18%
minutes

Set to 0 or leave empty for unlimited playback

White Noise

Features

  • Uniform across all frequencies (like "hissing")
  • Strongest masking ability

Suitable For

  • Noise-sensitive individuals
  • Urban dwellers
  • Light sleepers
  • Newborns (commonly used in hospitals)

Research Support

  • Journal of Caring Sciences
  • Sleep Medicine Reviews

⚠ Drawbacks

  • Some find it harsh
  • Not recommended for long-term high volume

Pink Noise [More Adult-Friendly]

Features

  • Stronger low frequencies, weaker high frequencies
  • More similar to natural sounds

Scientific Findings (Key Points)

  • Can increase slow-wave sleep (deep sleep)
  • Enhances memory consolidation

Classic Research

  • Nature Neuroscience, 2013: Pink noise can synchronize brain slow-wave activity

This is currently one of the 'scientifically best-reviewed' sleep sounds

Brown Noise

Features

  • Lower frequencies
  • Similar to distant thunder, deep waterfall

Suitable For

  • Anxious individuals
  • ADHD
  • People sensitive to white noise

Natural Sounds (Most Acceptable)

  • Rain, ocean waves, wind, forest sounds, stream sounds

Advantages

  • Low information density
  • Good emotional soothing effect
  • Highest acceptance rate

Psychological Research Shows

Natural sounds can reduce cortisol levels (stress hormone)