[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [WebAudio](./puppeteer.protocol.webaudio.md) > [NodeParamConnectedEvent](./puppeteer.protocol.webaudio.nodeparamconnectedevent.md) ## Protocol.WebAudio.NodeParamConnectedEvent interface Notifies that an AudioNode is connected to an AudioParam. Signature: ```typescript export interface NodeParamConnectedEvent ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [contextId](./puppeteer.protocol.webaudio.nodeparamconnectedevent.contextid.md) | [GraphObjectId](./puppeteer.protocol.webaudio.graphobjectid.md) | | | [destinationId](./puppeteer.protocol.webaudio.nodeparamconnectedevent.destinationid.md) | [GraphObjectId](./puppeteer.protocol.webaudio.graphobjectid.md) | | | [sourceId](./puppeteer.protocol.webaudio.nodeparamconnectedevent.sourceid.md) | [GraphObjectId](./puppeteer.protocol.webaudio.graphobjectid.md) | | | [sourceOutputIndex](./puppeteer.protocol.webaudio.nodeparamconnectedevent.sourceoutputindex.md) | number | |