essentia.js + necrodancer

essentia-poc.js

(async () => {
    const essentia = require("essentia.js")
    const time = {
        start: process.hrtime.bigint()
    };

    const file = await require("fs").promises.readFile("D:\\pirate gay remake.wav");
    time.file = process.hrtime.bigint();

    const vector = essentia.arrayToVector(file);
    time.vector = process.hrtime.bigint();

    const result = await essentia.BeatTrackerDegara(vector, 208, 40);
    time.beats = process.hrtime.bigint();

    const nam = [];
    for (let i = 0; i < result.ticks.size(); i++) {
        nam.push(result.ticks.get(i));
    }

    console.log("fs" , Number(time.file - time.start) / 1e9);
    console.log("vector", Number(time.vector - time.file) / 1e9);
    console.log("beats", Number(time.beats - time.vector) / 1e9);
    console.log("beats detected", nam.length)
})()