Mode 2 (U2) Manual Control

[nibu]

Mode 2 (U2) Photic & sound are pure sinewave ?

[Robert Austin]

Hi, nibu--
The Sirius (and Orion before it) generates pulse waveforms for both audio and visual stimulation. The ('isochronic') audio pulses are then low-pass filtered to sound more like sine waves--but there is still some harmonic components in the audio.

[nibu]

thanks Robert