Brain Waves - Binaural Beats

Generate binaural beats to support focus, meditation, and deep relaxation with this real-time audio synthesis app. Brain Waves lets you create custom frequencies using two independent oscillators, giving you complete control over your audio experience.

Tailor your sessions to your needs by adjusting frequencies with horizontal sliders, fine-tuning buttons, or entering precise values to two decimal places. All sound is generated in real-time rather than played from recordings, so you can enjoy uninterrupted playback for as long as you need. Save your favorite frequency combinations as presets and reload them instantly whenever you want to return to a particular setup.

Binaural beats work by playing slightly different frequencies in each ear—your brain perceives the difference as a rhythmic beat that can influence your mental state. For example, 300 Hz in one ear and 310 Hz in the other produces a perceived 10 Hz beat, commonly associated with relaxation and meditation. The effect only registers when both ears receive the signal, so headphones are essential for results. Low to moderate volume is sufficient; high volume adds nothing and risks hearing damage.

Use the built-in timer to set a session length in minutes and let the app stop automatically when your time is up. Access five established brainwave categories—Delta for deep sleep and healing, Theta for meditation and memory, Alpha for relaxation and creativity, Beta for focus and alertness, and Gamma for deep concentration and learning. Each frequency range carries distinct associations that can complement your intended mental state.

The app works seamlessly in the background: press your device's Home button to keep audio playing while you use other apps, or set up a Quick Tile shortcut for faster access. Background playback respects your device's battery optimization settings, and if you experience interruptions on newer Android versions, the app documentation includes guidance for preserving real-time audio performance.

Audio controls are straightforward: the app's volume slider operates independently from your system volume, so adjust both if needed for your comfort. Whether you're building a meditation practice, sharpening focus during work or study, or winding down before sleep, this tool adapts to your routine. Always use headphones at a low to moderate volume, and avoid running this app while driving or operating machinery.

Brain Waves - Binaural Beats gives you the flexibility to explore frequency combinations and discover what works best for your goals.