[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [WebAudio](./puppeteer.protocol.webaudio.md) > [NodeParamDisconnectedEvent](./puppeteer.protocol.webaudio.nodeparamdisconnectedevent.md) > [sourceId](./puppeteer.protocol.webaudio.nodeparamdisconnectedevent.sourceid.md) ## Protocol.WebAudio.NodeParamDisconnectedEvent.sourceId property Signature: ```typescript sourceId: GraphObjectId; ```