bits and pieces - diglet48/restim GitHub Wiki

Volume ramp

If we increase the volume from 0% to 100% immediately, this will generate a large spike in neuronal activity (onset response), this can generate a painful sensation. To make the signal feel smoother, the signal should be ramped.

Image showing the effect of different volume ramps
(Novel Stimulation Paradigms with Temporally-Varying Parameters to Reduce Synchronous Activity at the Onset of High Frequency Stimulation in Rat Hippocampus)

My setup ramps from 70% from 100% in 30s. This reduces, but not eliminates, the effect.

It'd be nice to know what the ideal ramp looks like.