<!--
{
  "documentType" : "article",
  "framework" : "AVFoundation",
  "identifier" : "/documentation/AVFoundation/encoder-bit-rate-strategy-values",
  "metadataVersion" : "0.1.0",
  "role" : "collectionGroup",
  "title" : "Encoder bit rate strategy values"
}
-->

# Encoder bit rate strategy values

The constants that represent the possible bit rate strategy values.

## Discussion

You use these values with <doc://com.apple.documentation/documentation/AVFAudio/AVEncoderBitRateStrategyKey>.

## Topics

### Strategies

  <doc://com.apple.documentation/documentation/AVFAudio/AVAudioBitRateStrategy_Constant>

  <doc://com.apple.documentation/documentation/AVFAudio/AVAudioBitRateStrategy_LongTermAverage>

  <doc://com.apple.documentation/documentation/AVFAudio/AVAudioBitRateStrategy_VariableConstrained>

  <doc://com.apple.documentation/documentation/AVFAudio/AVAudioBitRateStrategy_Variable>


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)