---
title: mType
framework: coreaudiotypes
role: symbol
role_heading: Instance Property
path: coreaudiotypes/audioclassdescription/mtype
---

# mType

A four character code that a manufacturer defines for a codec type.

## Declaration

```swift
var mType: OSType
```

## See Also

### Accessing the Data

- [mSubType](coreaudiotypes/audioclassdescription/msubtype.md)
- [mManufacturer](coreaudiotypes/audioclassdescription/mmanufacturer.md)