Focus audio: what the research shows about 60 bpm music, binaural beats, and brown noise
There is a whole genre of sound made to play in the background while you work: 60 bpm "deep focus" playlists, binaural beats, brown noise, endless lo-fi streams. People call it focus audio, and if you have ADHD, someone has probably recommended all of it to you.
We make a rhythm tool, so we spend a lot of time with this research. Here is what it shows about each one, in plain words.
60 bpm music
The claim: music at 60 beats per minute slows your heart to match it. The most careful study we know played 52 adults computer-generated music at controlled tempos and measured what their bodies did. Slow music did nudge the calm side of the nervous system, especially when the tempo slowed down over time. But hearts did not drift toward 60 to match the music; average heart rate did not change at all. Slow music can be settling. The syncing-heart story is not what the data shows.
Binaural beats
Play a slightly different tone into each ear and the brain hears a beat that exists nowhere in the air: 340 Hz in one ear and 356 Hz in the other becomes a 16 Hz pulse. That part is real, and EEG studies confirm the brain responds at that frequency. The focus part is less settled. In the largest recent study, binaural beats did not, on average, keep attention from fading over a long task, and a meta-analysis of 22 studies found results that swung from helpful to unhelpful depending on frequency, timing, and task. None of it was ADHD research. If they feel good to you, that is a fine reason to use them.
Brown noise
The viral one. Most of the actual research is on white and pink noise, in children: a 2024 review of 13 studies found a small, real benefit to task performance in young people with ADHD, about a quarter of a standard deviation. The proposed mechanism, called stochastic resonance, is that a little random noise can help a weak signal cross a threshold. Brown noise specifically is barely studied, and adult evidence is thin. Many people with ADHD say steady noise makes rooms more bearable, and the research so far points the same direction, in small steps.
Lo-fi
Lo-fi is mellow instrumental hip hop: soft, repeating loops with a warm, worn texture and no vocals, usually played in streams that run for hours. It is the one genre here that never made claims. It became the world's study soundtrack through YouTube streams, not white papers, and there is almost no research on it. It is built to be low-surprise: steady tempo, repeating loops, no lyrics, no drops. That gives the brain a soundscape it can model completely and then stop attending to. Predictable sound turns out to be a rare and interesting thing, which is its own post: why humans can't help syncing to a beat.
One habit worth keeping
Most focus-audio marketing rests on a study that measured the smallest version of the claim. "Your brain responds" is easy to show and almost always true. "You focus better" needs harder studies, and that is where the evidence thins. "It helps ADHD" would need clinical trials that mostly do not exist yet, for any of this audio. The same is true of Beatwired, though it is a different kind of thing: a rhythm practice, not a soundtrack.
We make a rhythm-based regulation tool, so weigh our interest in this subject accordingly. How we grade evidence, our own included, is on the science page.
Sources
Bretherton, Deuchars & Windsor 2019, "The Effects of Controlled Tempo Manipulations on Cardiovascular Autonomic Function," Music & Science
"A parametric investigation of binaural beats for brain entrainment and enhancing sustained attention," 2025, Scientific Reports
Garcia-Argibay, Santed & Reales 2019, "Efficacy of binaural auditory beats in cognition, anxiety, and pain perception: a meta-analysis," Psychological Research
Söderlund, Sikström & Smart 2007, "Listen to the noise: noise is beneficial for cognitive performance in ADHD," Journal of Child Psychology and Psychiatry (summary)
Nigg et al. 2024, "Do White Noise or Pink Noise Help With Task Performance in Youth With ADHD or With Elevated Attention Problems?", JAACAP