---
title: Format settings
framework: avfoundation
role: collectionGroup
path: avfoundation/format-settings
---

# Format settings

The audio settings that apply to all audio formats that the audio player and recorder classes support.

## Topics

### Settings

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

## See Also

### Formats

- [AVAudioFormat](avfaudio/avaudioformat.md)
- [AVAudioChannelLayout](avfaudio/avaudiochannellayout.md)
- [AVChannelLayoutKey](avfaudio/avchannellayoutkey.md)
- [Linear PCM format settings](avfoundation/linear-pcm-format-settings.md)