---
title: "AUGraphAddNode(_:_:_:)"
framework: audiotoolbox
role: symbol
role_heading: Function
path: "audiotoolbox/augraphaddnode(_:_:_:)"
---

# AUGraphAddNode(_:_:_:)

Adds a node to an audio processing graph.

## Declaration

```swift
func AUGraphAddNode(_ inGraph: AUGraph, _ inDescription: UnsafePointer<AudioComponentDescription>, _ outNode: UnsafeMutablePointer<AUNode>) -> OSStatus
```

## Parameters

- `inGraph`: The AUGraph object that you are adding a node to.
- `inDescription`: The AudioComponentDescription object used to find and open the audio unit that you are adding as a new node.
- `outNode`: The newly added node.

## Return Value

Return Value A result code.

## Discussion

Discussion Creates a node in an audio processing graph, using the supplied AudioComponentDescription object to find and open the audio unit for the node.

## See Also

### Audio Unit Processing Graph Services Functions

- [AUGraphAddRenderNotify(_:_:_:)](audiotoolbox/augraphaddrendernotify(_:_:_:).md)
- [AUGraphClearConnections(_:)](audiotoolbox/augraphclearconnections(_:).md)
- [AUGraphClose(_:)](audiotoolbox/augraphclose(_:).md)
- [AUGraphConnectNodeInput(_:_:_:_:_:)](audiotoolbox/augraphconnectnodeinput(_:_:_:_:_:).md)
- [AUGraphCountNodeInteractions(_:_:_:)](audiotoolbox/augraphcountnodeinteractions(_:_:_:).md)
- [AUGraphDisconnectNodeInput(_:_:_:)](audiotoolbox/augraphdisconnectnodeinput(_:_:_:).md)
- [AUGraphGetCPULoad(_:_:)](audiotoolbox/augraphgetcpuload(_:_:).md)
- [AUGraphGetIndNode(_:_:_:)](audiotoolbox/augraphgetindnode(_:_:_:).md)
- [AUGraphGetInteractionInfo(_:_:_:)](audiotoolbox/augraphgetinteractioninfo(_:_:_:).md)
- [AUGraphGetMaxCPULoad(_:_:)](audiotoolbox/augraphgetmaxcpuload(_:_:).md)
- [AUGraphGetNodeCount(_:_:)](audiotoolbox/augraphgetnodecount(_:_:).md)
- [AUGraphGetNodeInfoSubGraph(_:_:_:)](audiotoolbox/augraphgetnodeinfosubgraph(_:_:_:).md)
- [AUGraphGetNodeInteractions(_:_:_:_:)](audiotoolbox/augraphgetnodeinteractions(_:_:_:_:).md)
- [AUGraphGetNumberOfInteractions(_:_:)](audiotoolbox/augraphgetnumberofinteractions(_:_:).md)
- [AUGraphInitialize(_:)](audiotoolbox/augraphinitialize(_:).md)