<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "tvOS: -",
    "visionOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "AudioToolbox",
  "identifier" : "/documentation/AudioToolbox/AURenderEvent",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "Audio Toolbox"
    ],
    "preciseIdentifier" : "c:@U@AURenderEvent"
  },
  "title" : "AURenderEvent"
}
-->

# AURenderEvent

A union of the various specific render event types.

```
struct AURenderEvent
```

## Topics

### Instance Properties

[`MIDI`](/documentation/AudioToolbox/AURenderEvent/MIDI)

Use this field for MIDI events.

[`head`](/documentation/AudioToolbox/AURenderEvent/head)

Use this field to determine the event type.

[`parameter`](/documentation/AudioToolbox/AURenderEvent/parameter)

Use this field for parameter events.

[`MIDIEventsList`](/documentation/AudioToolbox/AURenderEvent/MIDIEventsList)

## Relationships

### Conforms To

[`Sendable`](/documentation/Swift/Sendable)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)