<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "tvOS: -",
    "visionOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "AudioToolbox",
  "identifier" : "/documentation/AudioToolbox/kAudioConverterPropertyMaximumInputPacketSize",
  "metadataVersion" : "0.1.0",
  "role" : "Global Variable",
  "symbol" : {
    "kind" : "Global Variable",
    "modules" : [
      "Audio Toolbox"
    ],
    "preciseIdentifier" : "c:@Ea@kAudioConverterPropertyMinimumInputBufferSize@kAudioConverterPropertyMaximumInputPacketSize"
  },
  "title" : "kAudioConverterPropertyMaximumInputPacketSize"
}
-->

# kAudioConverterPropertyMaximumInputPacketSize

A `UInt32` value that indicates the size, in bytes, of the largest single packet of data in the input format. This is mostly useful for variable bit rate compressed data (decoders).

```
var kAudioConverterPropertyMaximumInputPacketSize: AudioConverterPropertyID { get }
```

---

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)