Method guide / 03
Binaural beats
Two steady tones, one in each ear, can produce a beat you perceive between them.
For example, 200 Hz in the left ear and 210 Hz in the right can create a perceived 10 Hz beat. The 10 Hz describes the difference between the tones, not a low note being played by either headphone.
At a glance
Left ear
200 Hz
Right ear
210 Hz
10 Hz
Perceived beat
The difference between two tones
Why the listening setup matters
Use stereo headphones with both earpieces on and mono audio disabled. Each ear needs its own signal. Through speakers the tones mix in the room, so you are no longer isolating the binaural effect. That mixing can create monaural beats: actual changes in the combined sound’s amplitude.
What the evidence supports
The beat itself is a well-established percept. A meta-analysis reported benefits across studies of cognition, anxiety, and pain perception, with effects depending on the protocol. A later review of EEG studies found inconsistent evidence for brainwave entrainment. These are different questions: whether an intervention helps, and whether it works through the proposed mechanism. Neither establishes a result for every listener.
Research behind the method
One layer in a BioSynCare session
BioSynCare can combine binaural beats with rhythmic pulses, soundscapes, and breathing guidance. Start at a low volume and adjust until the sound is comfortable. The beat can be subtle within the mix. Choose by how the whole session feels; there is no need to pick out every layer.
Common questions
Will one earbud work?
You will hear that channel, but you will lose the separate input to both ears that creates the intended binaural beat. Other audible session layers can still play.
Are binaural beats the same as isochronic tones?
No. An isochronic tone is pulsed in the audio signal itself. A binaural beat is perceived from the difference between tones delivered separately to the two ears.
What if the sound feels unpleasant?
Lower the volume, choose another session, or stop. There is no need to tolerate discomfort to make the method work. If rhythmic sound aggravates tinnitus or other symptoms, seek advice from a qualified healthcare professional.
Keep exploring
Sensory stimulation
Rain on a window, a warm cup, a moving light: sensory stimulation begins with input reaching your senses.
Brainwave entrainment
A repeating sound gives the brain a timing reference. Whether brain activity follows it, and what you feel, are separate questions.
Guided breathing
A cue for breathing in, a cue for breathing out, and a rhythm you can follow without counting.
Find a session that fits
Explore rhythmic sound, breathing, and sensory design in a BioSynCare session.
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BioSynCare is a wellness app, not a medical treatment or a substitute for professional care.