---
title: "init(mType:mSubType:mManufacturer:)"
framework: coreaudiotypes
role: symbol
role_heading: Initializer
path: "coreaudiotypes/audioclassdescription/init(mtype:msubtype:mmanufacturer:)"
---

# init(mType:mSubType:mManufacturer:)

Creates an audio class description for the type, subtype, and manufacturer.

## Declaration

```swift
init(mType: OSType, mSubType: OSType, mManufacturer: OSType)
```

## Parameters

- `mType`: A four character code that a manufacturer defines for a codec type.
- `mSubType`: A four character code that a manufacturer defines for a codec subtype.
- `mManufacturer`: A four character code that identifies a codec manufacturer.

## See Also

### Initializers

- [init()](coreaudiotypes/audioclassdescription/init().md)