Live demo

Focus Pong

A one-player Pong: you steer both paddles. Holding two things at once is the focus task — and the audio works against it. The longer your rally, the faster the ball and the higher the tones climb. Miss, and it all resets to the calm floor.

The point: stop reading about entrainment audio and hear it. Flip the headphone switch to match your setup, then play. With headphones you get a real binaural beat; on speakers, pink noise and an isochronic pulse. Either way you're hearing the same thing the sessions are built from.

What you're actually hearing

With headphones — a binaural beat. One ear gets a steady tone, the other gets one a touch higher; your brain hears the difference as a third beat that isn't in either signal. It starts at 100 Hz against 107.83 Hz, a 7.83 Hz beat — the Schumann fundamental, down at the theta/alpha border. As your rally builds, both tones climb together but the gap stays exactly 7.83 Hz, so the beat holds while the carrier rises. (More on the method in binaural vs isochronic vs monaural.)

On speakers — a pink-noise bed under an isochronic tone: a single tone switched cleanly on and off, no headphones required. The pulse holds at 7.83 Hz to chase the same target, while the tone itself sweeps from 110 Hz up toward 120 Hz as the ball speeds up. Same destination, different vehicle.

The part we won't oversell

This is a toy, and a short one. A two-minute rally won't entrain anything — it's here so you can feel the texture of a binaural beat versus an isochronic pulse and decide which one you'd actually want to sit with. The sessions are the real instrument; this is the showroom. Run The Lumen first and a full session does considerably more than a game ever will.

Keep the volume comfortable, and skip this one if you have a seizure disorder. Not a medical device; no therapeutic or diagnostic claims.