Select the right channel track. Go to Effect > Sliding Time Scale/Pitch Shift . Shift the pitch from 180 Hz up to 300 Hz over the duration of the track. When you play this back, the sensation on the right electrode will slowly speed up from a buzz to a fast vibration.

To go from your computer or phone to the power box, you need a (male-to-male). Additionally, you must use an audio isolator (or a ground loop isolator costing $10-15) to prevent a "stinging" sensation caused by DC offset or ground loops between your PC and the stim unit.

In the context of (electrical stimulation), the "proper piece" usually refers to either the used to generate the signals or the

To generate effective estim audio, you need (A and B) that create a differential voltage across electrodes.