strudel/repl/src/prebake.mjs
2022-11-02 21:07:47 +01:00

32 lines
1.2 KiB
JavaScript

import { Pattern, toMidi } from '@strudel.cycles/core';
import { samples } from '@strudel.cycles/webaudio';
export async function prebake({ isMock = false, baseDir = '.' } = {}) {
if (!isMock) {
// https://archive.org/details/SalamanderGrandPianoV3
// License: CC-by http://creativecommons.org/licenses/by/3.0/ Author: Alexander Holm
samples('piano.json', `${baseDir}/piano/`);
// https://github.com/sgossner/VCSL/
// https://api.github.com/repositories/126427031/contents/
// LICENSE: CC0 general-purpose
samples('vcsl.json', 'github:sgossner/VCSL/master/');
samples('tidal-drum-machines.json', 'github:ritchse/tidal-drum-machines/main/machines/');
samples('EmuSP12.json', `${baseDir}/EmuSP12/`);
}
}
const maxPan = toMidi('C8');
const panwidth = (pan, width) => pan * width + (1 - width) / 2;
Pattern.prototype.piano = function () {
return this.clip(1)
.s('piano')
.release(0.1)
.fmap((value) => {
const midi = typeof value.note === 'string' ? toMidi(value.note) : value.note;
// pan by pitch
const pan = panwidth(Math.min(midi / maxPan, 1), 0.5);
return { ...value, pan: (value.pan || 1) * pan };
});
};