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# AVEncoderBitRateStrategyKey

A constant that represents the bit rate strategy for the encoder to use.

```
let AVEncoderBitRateStrategyKey: String
```

## Topics

### Bit Rate Strategies

[`AVAudioBitRateStrategy_Constant`](/documentation/AVFAudio/AVAudioBitRateStrategy_Constant)

A value that represents a constant bit rate strategy.

[`AVAudioBitRateStrategy_LongTermAverage`](/documentation/AVFAudio/AVAudioBitRateStrategy_LongTermAverage)

A value that represents an average bit rate strategy.

[`AVAudioBitRateStrategy_VariableConstrained`](/documentation/AVFAudio/AVAudioBitRateStrategy_VariableConstrained)

A value that represents a constrained variable bit rate strategy.

[`AVAudioBitRateStrategy_Variable`](/documentation/AVFAudio/AVAudioBitRateStrategy_Variable)

A value that represents a variable bit rate strategy.


---

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