spessasynth_lib/synthetizer/worklet_system/worklet_methods/stopping_notes/kill_note.js

MIDI and SoundFont2/DLS library with no compromises

import { generatorTypes } from "../../../../soundfont/basic_soundfont/generator.js";

/**
 * Stops a note nearly instantly
 * @param midiNote {number}
 * @param releaseTime {number} ticks
 * @this {WorkletProcessorChannel}
 */
export function killNote(midiNote, releaseTime = -12000)
{
    this.voices.forEach(v =>
    {
        if (v.realKey !== midiNote)
        {
            return;
        }
        v.modulatedGenerators[generatorTypes.releaseVolEnv] = releaseTime; // set release to be very short
        v.release();
    });
}