Zehano’s generator creates two steady tones with a selectable frequency difference and routes one to each audio channel. Headphones preserve that separation. The generator does not measure your brain activity, adapt to a sleep stage or verify an effect on attention.
Understand the controls
The base setting controls one tone. The difference is added to that frequency for the other channel. With a base of 180 Hz and a difference of 6 Hz, the outputs are 180 and 186 Hz. The volume control changes the output level; begin quietly and stop if the sound is unpleasant.
Separate the signal from a claim
A numerical difference between two tones is a property of the audio signal. It is not evidence that your brain has entered a correspondingly named state. This tool does not label settings as a treatment, an intelligence boost or a guaranteed sleep aid. A personal impression of the sound is not the same as a measured physiological outcome.
Choose the listening experience you prefer
If steady tones are distracting, stop them and use silence or the Soundscape Mixer. Its rain, wind and ocean textures are generated from noise and filters rather than downloaded nature recordings. No sound plays automatically. The tones are optional, and completing a meditation or focus session does not require listening to them.
Updated 10 October 2026. Original practical guide created with AI-assisted drafting and software checks. No professional or clinical review is claimed. Editorial approach and corrections.