---
title: kAudioCodecBitRateControlMode_VariableConstrained
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaudiocodecbitratecontrolmode_variableconstrained
---

# kAudioCodecBitRateControlMode_VariableConstrained

## Declaration

```swift
var kAudioCodecBitRateControlMode_VariableConstrained: UInt32 { get }
```

## See Also

### Constants

- [kAudioCodecBitRateControlMode_Constant](audiotoolbox/kaudiocodecbitratecontrolmode_constant.md)
- [kAudioCodecBitRateControlMode_LongTermAverage](audiotoolbox/kaudiocodecbitratecontrolmode_longtermaverage.md)
- [kAudioCodecBitRateControlMode_Variable](audiotoolbox/kaudiocodecbitratecontrolmode_variable.md)