AV Instrument: Streamgraph / Bairui Su

Creative generation toolmaker, believe that today's tool help shape tomorrow’s art. Creator Charming.js. Author @antv/g2@5.x.

Workspace

Public

Charming

Edited

Feb 4

Fork of Play Several Sounds

{

clear;

const isWaveform = measure === "Waveform";

const height = width * 0.618;

const marginLeft = 0;

const marginRight = 0;

const marginTop = isWaveform ? 50 : 0;

const marginBottom = isWaveform ? 50 : 0;

const frameRate = 10;

const urls = [

await FileAttachment("tears.wav").url(),

await FileAttachment("takerimba.wav").url(),

await FileAttachment("blip@1.wav").url(),

await FileAttachment("punch.wav").url()

];

const players = urls.map((url) => new Tone.Player(url).toDestination());

const analyzers = players.map((player) => {

const analyzer = new (isWaveform ? Tone.Waveform : Tone.FFT)(256);

player.connect(analyzer);

return analyzer;

});

const cancelURL = await FileAttachment("cancel.wav").url();

const cancel = new Tone.Player(cancelURL).toDestination();

const colors =

schemes === "Categorical"

? d3.schemeObservable10

: urls

.map((_, i) => {

const l = urls.length;

const step = 1 / (l + 1);

return (i + 1) * step;

})

.map(d3.interpolateCool);

const [state, dispose] = cm

.flow()

.let("data", [])

.derive("paths", paths)

.on("loop", loop, { frameRate })

.on("keydown", keydown)

.join();

invalidation.then(() => dispose());

await Tone.loaded;

function loop(state) {

for (let i = 0; i < players.length; i++) {

const player = players[i];

if (player.state === "started") {

const analyzer = analyzers[i];

const id = Math.random();

const data = Array.from(analyzer.getValue());

if (data.every((d) => d === 0 || d === -Infinity)) return;

const indexed = data.map((d, j) => ({

index: j,

name: `${i}-${id}`,

value: d

}));

state.data = [...state.data, ...indexed];

}

function keydown(d, { key }) {

switch (key) {

case "a":

players[0].start();

break;

case "s":

players[1].start();

break;

case "d":

players[2].start();

break;

case "f":

players[3].start();

break;

case "c":

state.data = []; // Clear Screen

cancel.start();

break;

}

function paths({ data }) {

const series = d3

.stack()

.offset(isWaveform ? d3.stackOffsetDiverging : null)

.keys(d3.union(data.map((d) => d.name)))

.value(([, D], key) => D.get(key).value)(

d3.index(

data,

(d) => d.index,

(d) => d.name

)

);

const x = d3

.scaleLinear()

.domain(d3.extent(data, (d) => d.index))

.range([marginLeft, width - marginRight]);

const y = d3

.scaleLinear()

.domain(d3.extent(series.flat(2)))

.rangeRound([height - marginBottom, marginTop]);

const color = d3

.scaleOrdinal()

.domain(series.map((d) => d.key.split("-")[0]))

.range(colors);

const area = d3

.area()

.x((d) => x(d.data[0]))

.y0((d) => y(d[0]))

.y1((d) => y(d[1]));

return series.map((d) =>

svg.path({

d: area(d),

fill: color(d.key.split("-")[0])

})

);

}

const node = svg.svg({ width, height, viewBox: [0, 0, width, height] }, [

svg.rect({ x: 0, y: 0, width, height, fill: "black" }),

cm.$(() => state.paths)

]);

yield node;

fullscreen(node, { center: true });

}

svg = cm.svg

import { cm } from "@charming-art/charmingjs-next"

Tone = require("tone")

import { fullscreen } from "@fil/fullscreen"

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