---
title: AVEncoderContentSourceKey
framework: avfaudio
role: symbol
role_heading: Global Variable
path: avfaudio/avencodercontentsourcekey
---

# AVEncoderContentSourceKey

## Declaration

```swift
let AVEncoderContentSourceKey: String
```

## See Also

### Settings

- [AVEncoderASPFrequencyKey](avfaudio/avencoderaspfrequencykey.md)
- [AVEncoderAudioQualityKey](avfaudio/avencoderaudioqualitykey.md)
- [AVEncoderBitDepthHintKey](avfaudio/avencoderbitdepthhintkey.md)
- [AVEncoderBitRateKey](avfaudio/avencoderbitratekey.md)
- [AVEncoderBitRatePerChannelKey](avfaudio/avencoderbitrateperchannelkey.md)
- [AVEncoderBitRateStrategyKey](avfaudio/avencoderbitratestrategykey.md)
- [AVEncoderDynamicRangeControlConfigurationKey](avfaudio/avencoderdynamicrangecontrolconfigurationkey.md)