---
title: bitRateStrategy
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudioconverter/bitratestrategy
---

# bitRateStrategy

A key value constant the framework uses during encoding.

## Declaration

```swift
var bitRateStrategy: String? { get set }
```

## Discussion

Discussion This property returns nil if you’re not encoding. For information about possible values, see AVEncoderBitRateStrategyKey.

## See Also

### Getting Bit Rate Properties

- [applicableEncodeBitRates](avfaudio/avaudioconverter/applicableencodebitrates.md)
- [availableEncodeBitRates](avfaudio/avaudioconverter/availableencodebitrates.md)
- [availableEncodeChannelLayoutTags](avfaudio/avaudioconverter/availableencodechannellayouttags.md)
- [bitRate](avfaudio/avaudioconverter/bitrate.md)