{"json_modified": "2016-03-28T08:37:56.711361", "uuid": "78a154c3-32ec-4a15-aa88-025af6979f30", "title": "ScriptProcessorNode.onaudioprocess", "url": "/en-US/docs/Web/API/ScriptProcessorNode/onaudioprocess", "tags": ["API", "onaudioprocess", "Reference", "Property", "R\u00e9f\u00e9rence", "Web Audio API", "ScriptProcessorNode"], "translations": [], "modified": "2015-02-22T12:04:23", "label": "ScriptProcessorNode.onaudioprocess", "localization_tags": [], "locale": "en-US", "id": 127131, "last_edit": "2015-02-22T12:04:20", "summary": "The following example shows basic usage of a <code>ScriptProcessorNode</code> to take a track loaded via <a href=\"/en-US/docs/Web/API/AudioContext.decodeAudioData\" title=\"The documentation about this has not yet been written; please consider contributing!\"><code>AudioContext.decodeAudioData</code></a>, process it, adding a bit of white noise to each audio sample of the input track (buffer) and play it through the <a href=\"/en-US/docs/Web/API/AudioDestinationNode\" title=\"AudioDestinationNode has no output (as it is the output, no more AudioNode can be linked after it in the audio graph) and one input. The amount of channels in the input must be between 0 and the maxChannelCount value or an exception is raised.\"><code>AudioDestinationNode</code></a>. For each channel and each sample frame, the <code>scriptNode.onaudioprocess</code> function takes the associated <code>audioProcessingEvent</code> and uses it to loop through each channel of the input buffer, and each sample in each channel, and add a small amount of white noise, before setting that result to be the output sample in each case.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/ScriptProcessorNode/onaudioprocess", "review_tags": ["technical"]}