---
title: AVNumberOfChannelsKey
framework: avfaudio
role: symbol
role_heading: Global Variable
path: avfaudio/avnumberofchannelskey
---

# AVNumberOfChannelsKey

An integer value that represents the number of channels.

## Declaration

```swift
let AVNumberOfChannelsKey: String
```

## See Also

### Settings

- [AVFormatIDKey](avfaudio/avformatidkey.md)
- [AVSampleRateKey](avfaudio/avsampleratekey.md)