---
title: Format Settings
framework: avfaudio
role: collectionGroup
role_heading: API Collection
path: avfaudio/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](avfaudio/linear-pcm-format-settings.md)