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How Binaural Beats Work: The Science Explained
Binaural beats occur when two slightly different frequencies are played in each ear, causing the brain to perceive a third 'beat' frequency. This phenomenon, known as brainwave entrainment, is the core mechanism behind the technology found in Binaura.
The Frequency Difference
For binaural beats to work, you must listen with stereo headphones. If you play a 400Hz tone in your left ear and a 410Hz tone in your right ear, your brain perceives a 10Hz beat. This beat is not heard by your ears; it is an electrical signal generated in your brainstem. This 10Hz frequency corresponds to the Alpha brainwave range.
Brainwave Entrainment
The human brain has a natural tendency to synchronize its electrical oscillations with external rhythms, a process called entrainment. By listening to a binaural beat frequency, you can encourage your brainwaves to shift towards that frequency. This is why listening to Delta waves (0.5–4Hz) can help induce sleep, while Gamma waves (30–100Hz) can boost cognitive processing.
The Role of Apple Intelligence
Binaura leverages Apple Intelligence to analyze your needs and build custom sessions. Whether you want to enter a deep Theta state for creativity or a sharp Beta state for focus, the AI can construct a multi-step sequence tailored to your session goals. The app generates these sounds locally, ensuring the frequencies are precise and the audio is generated in real-time.
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