---
title: "inputFormat(forBus:)"
framework: avfaudio
role: symbol
role_heading: Instance Method
path: "avfaudio/avaudionode/inputformat(forbus:)"
---

# inputFormat(forBus:)

Gets the input format for the bus you specify.

## Declaration

```swift
func inputFormat(forBus bus: AVAudioNodeBus) -> AVAudioFormat
```

## Parameters

- `bus`: An audio node bus.

## Return Value

Return Value An AVAudioFormat instance that represents the input format of the bus.

## See Also

### Related Documentation

- [AVFoundation Programming Guide](apple-archive/documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/00_Introduction.html.md)

### Configuring an Input Format Bus

- [AVAudioNodeBus](avfaudio/avaudionodebus.md)
- [name(forInputBus:)](avfaudio/avaudionode/name(forinputbus:).md)
- [numberOfInputs](avfaudio/avaudionode/numberofinputs.md)