Adjusting Parameters for Identifying Features of an Action Potential

[pbuk]

You suggested a couple of things in a previous post including (1) enabling users to enter arbitrary equations similar to Desmos

Yes, this could be implemented using the excellent expression parser in math.js.

(2) changing audio parameters...Both of these suggestions are great, though I would like to learn more. Which audio parameters could we actually adjust in this application?

Well the code has these default settings (see https://github.com/avplot/avplot.gi...0bed551481c708dcb9e10/src/avplot/avplot.js#L9)

const defaults = {
  animationDuration: 5000,
  highlightPointRadius: 6,

  maxGain: 0.25,
  valueScale: 1,
  valueOffset: 0,
  // const baseFreq = 440; // A5.
  // const baseFreq = 523.23; // C5.
  baseFrequency: 880, // A6.
  octaveScale: 2,
  octaveOffset: 0,
};

, you can see where I have experimented with different base frequencies for instance. All it needs is a user interface to adjust these (and it would be even easier to build these into a URL e.g. https://avplot.com/#/hodgkin-huxley/settings=baseFreq:440,octaveScale:2 (note this is not implemented and shows a blank screen at the moment).

Regarding this particular sonification: It could be useful to adjust the function such that the users can more easily identify specific features of an action potential. Specifically, it would be helpful to make the undershoot following the fall of the curve a bit more pronounced, e.g., by increasing its amplitude. It would be good to experiment with that particular feature of the curve. Currently, without any visual input, I would not be able to identify that there is an undershoot following the fall of the curve.

Parameters could be introduced to expand the freqency range for e.g. the lower part of the curve which would highlight the detail in this case.