[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [WebAudio](./puppeteer.protocol.webaudio.md) > [ContextChangedEvent](./puppeteer.protocol.webaudio.contextchangedevent.md) ## Protocol.WebAudio.ContextChangedEvent interface Notifies that existing BaseAudioContext has changed some properties (id stays the same).. Signature: ```typescript export interface ContextChangedEvent ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [context](./puppeteer.protocol.webaudio.contextchangedevent.context.md) | [BaseAudioContext](./puppeteer.protocol.webaudio.baseaudiocontext.md) | |