Worklet-based Synthesizer

This synthesizer uses a single AudioWorklet to provide real-time or offline playback.

Initialization

const synth = new WorkletSynthesizer(
    context,
    config
);

• context - BaseAudioContext - the context for the synthesizer to use.
• config - SynthConfig - optional additional configuration. All properties are optional. Described here

Example initialization

Below is a simple example of creating a new synthesizer.

// create audio context
const context = new AudioContext({
    sampleRate: 44100
});
// add worklet
await context.audioWorklet.addModule("spessasynth_processor.min.js");
// set up synthesizer
const synth = new WorkletSynthesizer(context);

Methods

startOfflineRender

Starts an offline audio render.

await synth.startOfflineRender(config);

• config - a configuration object, described below:

midiSequence

The MIDI to render, a BasicMIDI instance.

snapshot

Optional, the SynthesizerSnapshot to apply before starting the render.

loopCount

The amount times to loop the song. A number.

soundBankList

The list of sound banks to render this file with.

An array of objects with two properties: - bankOffset - bank offset for this sound bank, a number. Leave at 0 if you are not sure. - soundBankBuffer - an ArrayBuffer containing the file.

sequencerOptions

The options to pass to the sequencer. The same options as with initializing the sequencer

destroy

Properly disposes of the synthesizer along with its worklet.