naive-convolution.js

//in this example we assume guitar sound and impulse response are loaded into arrays somehow
const samplingRate = 44100
// 1 second of an input sound (e.g. guitar chord)
const X = new Array(samplingRate * 1)
// 2 seconds of an impulse response (e.g echos of a clap in a room)
const H = new Array(samplingRate * 2)

//output sound (how chord would sound in this room)
const Y = new Array(X.length + H.length)
X.forEach((x, i) => {
    H.forEach((h, j) => {
        Y[i+j] = Y[i+j] + x*h
    })
})