---
title: kRoundTripAACParam_RateOrQuality
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kroundtripaacparam_rateorquality
---

# kRoundTripAACParam_RateOrQuality

## Declaration

```swift
var kRoundTripAACParam_RateOrQuality: AudioUnitParameterID { get }
```

## See Also

### Constants

- [kRoundTripAACParam_BitRate](audiotoolbox/kroundtripaacparam_bitrate.md)
- [kRoundTripAACParam_CompressedFormatSampleRate](audiotoolbox/kroundtripaacparam_compressedformatsamplerate.md)
- [kRoundTripAACParam_EncodingStrategy](audiotoolbox/kroundtripaacparam_encodingstrategy.md)
- [kRoundTripAACParam_Format](audiotoolbox/kroundtripaacparam_format.md)
- [kRoundTripAACParam_Quality](audiotoolbox/kroundtripaacparam_quality.md)