Engine

Pd4Web is mainly designed for Pd users, people that actually don't code. So here some options to use the Pd4Web audio backend.

Disabling Gui Interface

To compile your patch without the GUI interface, you need to use the -nogui flag. This will disable the GUI interface and will use the Pd4Web audio backend.

When disabling the Gui interface, you need to init pd4web for yourself.

Mic input use

Always that you use the Mic input (adc~), you must init pd4web from a user gesture (click).

For example, in this example below I init pd4web from a click anywhere in the main page.

var Pd4Web = null; // Pd4Web object must be declared in the global scope and the name must be Pd4Web
Pd4WebModule().then((Pd4WebModulePromise) => {
    Pd4Web = new Pd4WebModulePromise.Pd4Web();
});

document.addEventListener(
    "click",
    async () => {
        Pd4Web.init();
    },
    { once: true }, // Ensures this only runs once
);