Guides

Focus audio guides

Practical, honest explanations of how sound affects focus, and how Underlay.fm actually builds what you hear.

Focus Music Statistics: What the Research Shows

Peer-reviewed numbers on background music, lyrics, office speech, white noise for ADHD, binaural beats and attention span, each checked against its primary source.

Brown Noise, Pink Noise and White Noise, Measured

What each noise color actually is, shown as measured spectra with a sample of each, and what the research says about brown noise for ADHD, pink noise for sleep and safe volume.

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