duolet.audioworker

This is an experimental module. AudioWorker haven't been implemented in any browsers yet. *

DRIVER and DSP in the worker thread. This architecture works on the browser.

Installation

$ npm install duolet.audioworker

Example

in the main thread

const duolet = require("duolet.audioworker/client")();
const Driver = require("pico.driver.audioworker/client");

let audioContext = new AudioContext();

duolet.compose({ workerPath: "/path/to/worker", driver: new Driver() });
duolet.setup({ context: audioContext, bufferLength: 1024 });

duolet.sendToWorker({ type: "start" });

in the worker thread

const duolet = require("duolet.audioworker/worker")(self);
const Driver = require("pico.driver.audioworker/worker");
const DSP = require("./dsp");

duolet.compose({ dsp: new DSP(), driver: new Driver(self) });

duolet.recvFromClient = (e) => {
  if (e.type === "start") {
    duolet.start();
  }
};

API

client/Duolet

• constructor()

Instance attributes

• driver: pico.driver
• sampleRate: number (implicit readonly)
• bufferLength: number (implicit readonly)

Instance methods

• compose(spec: object): self
• setup(opts: object): self
• start(): self
• stop(): self
• sendToServer(data: any): void

worker/Duolet

• constructor(self: AudioWorkerGlobalScope)

Instance attributes

• dsp: duoletDSP
• sampleRate: number (implicit readonly)
• bufferLength: number (implicit readonly)

Instance methods

• compose(spec: object): self
• setup(opts: object): self
• start(): self
• stop(): self
• sendToClient(data: any): void

Interfaces

• duolet.dsp

interface duoletDSP {
  optional setup(opts: object) => void;
  optional start() => void;
  optional stop() => void;
  process(bufL: Float32Array, bufR: Float32Array) => void;
}

Audio Drivers

• https://github.com/mohayonao/pico.driver

License

MIT