Pre-Task Warm-Up · Alpha 10 Hz

Listen for 10 minutes before you start a task.

10 minStereo headphones required

How is it made?

  • Binaural · Left 215 Hz · Right 225 Hz · Beat 10 Hz (Alpha)

Sound is generated on this device in real time; no files are downloaded from a server. There is a 5 s fade-in at the start and a 0 min fade-out at the end.

Evidence

C · Preliminary/mixed evidence

Small trials or pilot studies; inconsistent results.

In one meta-analysis, listening before the task gave better results.

Evidence level C: Preliminary/mixed evidence
What do we know?
In a meta-analysis's moderator analysis, listening before the task (or before and during it) gave better results than listening only during it, and longer listening increased the effect.
What don't we know?
This rests on a moderator comparison within one meta-analysis; few experiments test the question directly, and in a small experiment that directly varied onset time, results were mixed. The overall effect itself is debated (see the focus claim).
Sources and review note

Evidence is weak and conflicting; in some studies binaural beats lowered test performance.

Evidence level C: Preliminary/mixed evidence
What do we know?
Two meta-analyses found a moderate overall effect: one on memory and attention only (g = 0.40), the other also pooling anxiety and pain (g = 0.45); they partly share studies. In a small parametric study, 40 Hz beats with a low (340 Hz) carrier and a white-noise background improved general attention but did not prevent attention from declining over time.
What don't we know?
Results conflict. In two home experiments with 1,000 people in total, 5 Hz and 15 Hz beats lowered reasoning-test scores, while silence and other sounds had no effect. In a 58-person study, 40 Hz beats did not affect attention. Positive findings need replication. In a three-experiment study, 16 Hz binaural beats did not improve sustained attention; the combined data gave evidence against this hypothesis.
Sources and review note

A session's level is the weakest of its linked claims; it is never raised by a strong but unrelated claim.

Keep your device volume comfortable, preferably below 60%. You can also use your device's headphone-safety settings.