@thht_jspsych/sound_threshold

jsPsych plugin to get the perceptual threshold of a sound using maximum likelihood threshold hunting according to Green 1993.

This version only works with jsPsych 7.0.0 and later. If you still need to use jsPsych 6.4, please use version 0.0.6.

How to install

The package is on npm:

npm install @thht_jspsych/sound_threshold

How to use

Add necessary css

This plugin uses the Bootstrap. So you need to include the fonts.

Include it in your entry javascript file:

import 'bootstrap/dist/css/bootstrap.css';

Use the plugin

Now you can use it as any other jsPsych plugin:

import { Sine } from "@thht/sounds";
import SoundThresholdPlugin from '@thht_jspsych/sound_threshold';

const probe_sound = Sine(440, 1);

jsPsych.init({
    timeline: [
        {
            type: SoundThresholdPlugin,
            sound: () => probe_sound,
            db_range: [-80, -20],
        },
    ]
});

After the plugin has run, the sound that it used will be at the threshold volume.

The plugin offers the following parameters:

sound

A function returning the sound to be probed. It might sound weird, that this needs to be a function, but it does not work otherwise. Look at the example for the most simple way to do it.

db_range

The range of volume in dB to probe. Defaults to [-120, -20].

delay

The delay from the onset of each probe trial to the onset of the sound in seconds. Defaults to 0.5.

question

The string to present as the question. Defaults to 'Did you hear the sound?'.

yes_response

The string to present as the positive response option. Defaults to 'Yes'.

no_response

The string to present as the negative response option. Defaults to 'No'.