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/**
* Kalimba
* @module lib/kalimba.js;
*/
import Tone from "tone";
import { choice } from "./util";
const player_count = 4;
const samples = [
{ root: 219.5, fn: "samples/380737__cabled-mess__sansula-01-a-raw.wav" },
{ root: 260.9, fn: "samples/380736__cabled-mess__sansula-02-c-raw.wav" },
{ root: 330.2, fn: "samples/380735__cabled-mess__sansula-03-e-raw.wav" },
// { root: 440.9, fn: "samples/380733__cabled-mess__sansula-06-a-02-raw.wav" },
// { root: 507, fn: 'samples/380734__cabled-mess__sansula-07-b-h-raw.wav', },
// { root: 535, fn: 'samples/380731__cabled-mess__sansula-08-c-raw.wav', },
// { root: 671, fn: 'samples/380732__cabled-mess__sansula-09-e-raw.wav', },
];
function load(output) {
samples.forEach((sample) => {
sample.players = [];
sample.index = -1;
for (let i = 0; i < player_count; i++) {
let fn = sample.fn;
if (window.location.href.match(/asdf.us/)) {
fn = "//asdf.us/kalimba/" + fn.replace("wav", "mp3");
}
let player = new Tone.Player({
url: fn,
retrigger: true,
playbackRate: 1,
});
player.name = fn;
const gain = new Tone.Gain(1.6);
player.connect(gain);
gain.connect(output);
sample.players.push(player);
}
});
console.log(
"+ Voices:",
samples.reduce((count, sample) => count + sample.players.length, 0),
);
}
let last = 440;
function play(freq) {
last = freq;
const sample = choice(samples);
sample.index = (sample.index + 1) % sample.players.length;
const player = sample.players[sample.index];
player.playbackRate = freq / sample.root;
player.start();
}
function pause() {
// no-op
}
export default { load, play, pause };
// for help tuning
function keydown(e) {
// console.log(e.keyCode)
if (e.metaKey && last) {
let step = e.shiftKey ? (e.ctrlKey ? 0.01 : 0.1) : 1;
switch (e.keyCode) {
case 38: // up
e.preventDefault();
samples[0].root -= step;
play(last);
break;
case 40: // down
e.preventDefault();
samples[0].root += step;
play(last);
break;
}
console.log(samples[0].root);
}
}
// window.addEventListener("keydown", keydown, true);
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