Monaural Beats The underrated entrainment method

Monaural beats are the quietest story in brainwave entrainment. Like binaural beats, they're created from two slightly different frequencies, but unlike binaural beats, the two tones are combined before they reach your ears, producing a single audible beat in the physical audio signal itself.

When a 200 Hz tone and a 210 Hz tone are mixed together, the resulting waveform pulses at 10 Hz in the air. Your brain doesn't have to synthesize the beat; it's already there, hitting both ears simultaneously as a real acoustic phenomenon. That makes monaural beats work through any speaker, headphones, or earbuds equally well.

Monaural beats sit in an interesting middle ground, and there is one good measurement to point at. Schwarz and Taylor, writing in Clinical Neurophysiology in 2005 (116(3):658–68), recorded auditory steady-state responses to both binaural and monaural beats. They found a measurable cortical response to binaural beats, but only at low stimulus frequencies, and smaller in amplitude than the response to monaural beats.

The finding is narrower than it sounds. A larger cortical response is not the same as a better outcome — the study measured brain signal, not sleep quality, focus or mood. What it does support is the mechanical point: because a monaural beat exists in the acoustic signal before it reaches your ears, rather than being assembled by the brainstem from two separate inputs, it is a more robust stimulus. If binaural beats do nothing for you, they are a reasonable next thing to try.

Arkhitec's monaural library covers every major brainwave band with 26 carefully engineered presets. Delta monaural (0.5–4 Hz) for sleep, layered beneath soundscapes designed to complement the low-frequency pulse. Theta monaural (4–8 Hz) for deep relaxation and meditation. Alpha monaural (8–13 Hz) for calm focus. Beta (13–30 Hz) for concentration.

Because monaural beats work through speakers, they're ideal for situations where headphones aren't practical: bedtime with a partner, open-plan offices, or ambient background audio in a shared space. Every preset includes the same tested entrainment ramps as Arkhitec's binaural library, and every one can be layered beneath a soundscape in the 7-layer mixer.