AudioWorkletNode: processorerror event
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The processorerror event fires when the underlying AudioWorkletProcessor behind the node throws an exception in its constructor, the process method, or any user-defined class method.
Once an exception is thrown, the processor (and thus the node) will output silence throughout its lifetime.
Syntax
Use the event name in addEventListener():
addEventListener("processorerror", (event) => { })
Alternatively, assign to the event handler property of the interface:
onprocessorerror = (event) => { }
Event type
A generic Event.
Examples
To be informed when the processor throws an exception, you can add a handler to your AudioWorkletNode instance using addEventListener(), like this:
whiteNoiseNode.addEventListener("processorerror", (event) => {
console.error("There was an error!");
});
Alternatively, you can use the onprocessorerror event handler property to establish a handler for the processorerror event (but note that this replaces other event listeners added using onprocessorerror, if any):
whiteNoiseNode.onprocessorerror = (event) => {
console.error("There was an error!");
};
Specifications
| Specification |
|---|
| Web Audio API # dom-audioworkletnode-onprocessorerror |