---
title: nextAvailableInputBus
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudioenvironmentnode/nextavailableinputbus
---

# nextAvailableInputBus

An unused input bus.

## Declaration

```swift
var nextAvailableInputBus: AVAudioNodeBus { get }
```

## Discussion

Discussion This method finds and returns the first input bus that doesn’t have a connection with a node.