---
title: Encoder bit rate strategy values
framework: avfoundation
role: collectionGroup
path: avfoundation/encoder-bit-rate-strategy-values
---

# Encoder bit rate strategy values

The constants that represent the possible bit rate strategy values.

## Overview

Overview You use these values with AVEncoderBitRateStrategyKey.

## Topics

### Strategies

- [AVAudioBitRateStrategy_Constant](avfaudio/avaudiobitratestrategy_constant.md)
- [AVAudioBitRateStrategy_LongTermAverage](avfaudio/avaudiobitratestrategy_longtermaverage.md)
- [AVAudioBitRateStrategy_VariableConstrained](avfaudio/avaudiobitratestrategy_variableconstrained.md)
- [AVAudioBitRateStrategy_Variable](avfaudio/avaudiobitratestrategy_variable.md)

## See Also

### Constants

- [AVAUDIOENGINE_HAVE_AUAUDIOUNIT](avfaudio/avaudioengine_have_auaudiounit.md)